{"id":20888,"date":"2025-07-07T23:25:52","date_gmt":"2025-07-07T16:25:52","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=20888"},"modified":"2025-07-07T23:25:52","modified_gmt":"2025-07-07T16:25:52","slug":"khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/","title":{"rendered":"Kh\u00ed metan l\u00e0 g\u00ec? Tr\u1ea1ng th\u00e1i t\u1ef1 nhi\u00ean, t\u00ednh ch\u1ea5t, \u1ee9ng d\u1ee5ng v\u00e0 c\u00e1ch \u0111i\u1ec1u ch\u1ebf"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Metan_la_gi\" >Metan l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Tinh_chat_vat_ly_cua_metan\" >T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a metan<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Tinh_chat_hoa_hoc_cua_khi_metan\" >T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a kh\u00ed m\u00eatan<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Anh_huong_voi_oxy\" >\u1ea2nh h\u01b0\u1edfng v\u1edbi oxy<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Hieu_qua_voi_clo\" >Hi\u1ec7u qu\u1ea3 v\u1edbi clo<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Lam_the_nao_de_chuan_bi_metan\" >L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 chu\u1ea9n b\u1ecb metan?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Chuan_bi_khi_me_-tan_trong_phong_thi_nghiem\" >Chu\u1ea9n b\u1ecb kh\u00ed m\u00ea -tan trong ph\u00f2ng th\u00ed nghi\u1ec7m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Dieu_che_khi_me_-tan_trong_nganh\" >\u0110i\u1ec1u ch\u1ebf kh\u00ed m\u00ea -tan trong ng\u00e0nh<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Ap_dung_khi_metan\" >\u00c1p d\u1ee5ng kh\u00ed m\u00eatan<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Ung_dung_trong_nhien_lieu\" >\u1ee8ng d\u1ee5ng trong nhi\u00ean li\u1ec7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Ung_dung_trong_nganh_cong_nghiep\" >\u1ee8ng d\u1ee5ng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Tap_the_duc_tren_Methan_%E2%80%93_Hoa_hoc_SGK_9_voi_cac_giai_phap\" >T\u1eadp th\u1ec3 d\u1ee5c tr\u00ean Methan &#8211; H\u00f3a h\u1ecdc SGK 9 v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Bai_2\" >B\u00e0i 2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Bai_3_Sach_giao_khoa_Hoa_hoc_9_Trang_116\" >B\u00e0i 3 S\u00e1ch gi\u00e1o khoa H\u00f3a h\u1ecdc 9 Trang 116<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.ckconitsha.com\/vn\/khi-metan-la-gi-trang-thai-tu-nhien-tinh-chat-ung-dung-va-cach-dieu-che\/#Bai_4_Trang_116_SGK_Hoa_hoc_9\" >B\u00e0i 4 Trang 116 SGK H\u00f3a h\u1ecdc 9<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p dir=\"ltr\">Kh\u00ed m\u00ea -tan (c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc l\u00e0 CH4) l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a kh\u00ed ch\u00fang ta \u0111ang s\u1eed d\u1ee5ng. V\u1eady metan l\u00e0 g\u00ec? H\u00e3y t\u00ecm ra tr\u1ea1ng th\u00e1i t\u1ef1 nhi\u00ean, t\u00ednh ch\u1ea5t, \u1ee9ng d\u1ee5ng v\u00e0 c\u00e1ch chu\u1ea9n b\u1ecb kh\u00ed m\u00ea -tan trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y.<\/p>\n<p>                                    <img decoding=\"async\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/image\/600x480.png\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Metan_la_gi\"><\/span>Metan l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Metan kh\u00f4ng m\u00e0u, kh\u00f4ng m\u00f9i, v\u00f4 v\u1ecb, nh\u1eb9 h\u01a1n kh\u00f4ng kh\u00ed. Trong t\u1ef1 nhi\u00ean, kh\u00ed m\u00ea -tan c\u00f3 nhi\u1ec1u trong c\u00e1c kh\u00ed kh\u00ed (kh\u00ed t\u1ef1 nhi\u00ean), trong c\u00e1c m\u1ecf d\u1ea7u (d\u1ea7u ho\u1eb7c kh\u00ed \u0111i k\u00e8m), trong c\u00e1c m\u1ecf than (m\u1ecf than), trong b\u00f9n ao (kh\u00ed b\u00f9n), trong kh\u00ed sinh h\u1ecdc &#8230;<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00f4ng th\u1ee9c ph\u00e2n t\u1eed: CH4<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u00e2n t\u1eed ph\u00e2n t\u1eed c\u1ee7a metan (CH4) l\u00e0 16 \u0111\u01a1n v\u1ecb.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u1ea5u tr\u00fac ph\u00e2n t\u1eed:<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/cong-thuc-cau-tao-cua-metan-1.png\" alt=\"C\u1ea5u tr\u00fac ph\u00e2n t\u1eed c\u1ee7a kh\u00ed m\u00eatan. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<\/p>\n<p dir=\"ltr\">Trong c\u00e1c ph\u00e2n t\u1eed methan, ch\u1ec9 c\u00f3 4 li\u00ean k\u1ebft \u0111\u01a1n.<\/p>\n<p dir=\"ltr\">Hydrocarbon m\u1edf, ph\u00e2n t\u1eed ch\u1ec9 li\u00ean k\u1ebft gi\u1ed1ng nh\u01b0 kh\u00ed m\u00eatan \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ankan, c\u00f4ng th\u1ee9c ph\u1ed5 bi\u1ebfn l\u00e0 CNH2N+2, v\u1edbi N \u2265 1<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tinh_chat_vat_ly_cua_metan\"><\/span>T\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a metan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Methane (CH4) c\u00f3 c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd sau: <\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/khi-metan-la-gi-11.png\" alt=\"T\u00ecm hi\u1ec3u t\u00ednh ch\u1ea5t kh\u00ed metan. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Kh\u00ed m\u00ea -tan l\u00e0 m\u1ed9t lo\u1ea1i kh\u00ed kh\u00f4ng m\u00e0u, kh\u00f4ng m\u00f9i, v\u00f4 v\u1ecb, \u00edt h\u00f2a tan trong n\u01b0\u1edbc.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">M\u1eadt \u0111\u1ed9 c\u1ee7a metan v\u1edbi kh\u00f4ng kh\u00ed l\u00e0 DCH4\/KK = 16\/29.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110\u00e2y l\u00e0 m\u1ed9t lo\u1ea1i kh\u00ed r\u1ea5t \u0111\u1ed9c h\u1ea1i v\u00e0 d\u1ec5 d\u00e0ng b\u1ed1c ch\u00e1y, t\u1ea1o ra l\u1eeda xanh.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ch4 h\u00f3a l\u1ecfng khi t\u00ednh b\u1eb1ng -162 \u00b0 C, h\u00f3a r\u1eafn \u1edf -183 \u00b0 C.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110i\u1ec3m b\u1eaft l\u1eeda: 537 \u00b0 C.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">M\u1eadt \u0111\u1ed9 c\u1ee7a metan: 0,717 kg\/m3<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Metan kh\u00f4ng th\u1ec3 h\u00f2a tan trong c\u00e1c dung m\u00f4i ph\u00e2n c\u1ef1c v\u00ec kh\u00f4ng c\u00f3 m\u1ed1i li\u00ean h\u1ec7 gi\u1eefa hydro, ch\u00fang ch\u1ec9 h\u00f2a tan trong c\u00e1c dung m\u00f4i kh\u00f4ng ph\u00e2n c\u1ef1c.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">CH4 kh\u00f4ng c\u00f3 \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n.<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tinh_chat_hoa_hoc_cua_khi_metan\"><\/span>T\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc c\u1ee7a kh\u00ed m\u00eatan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Trong th\u1ef1c t\u1ebf, metan c\u00f3 nhi\u1ec1u t\u00ednh ch\u1ea5t h\u00f3a h\u1ecdc kh\u00e1c nhau. Tuy nhi\u00ean, metan c\u00f3 hai t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n v\u00e0 \u0111i\u1ec3n h\u00ecnh nh\u1ea5t, \u0111\u00f3 l\u00e0 kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng v\u1edbi oxy v\u00e0 clo theo t\u1eebng \u0111i\u1ec1u ki\u1ec7n ph\u1ea3n \u1ee9ng kh\u00e1c nhau.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Anh_huong_voi_oxy\"><\/span>\u1ea2nh h\u01b0\u1edfng v\u1edbi oxy<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Th\u00ed nghi\u1ec7m: \u0110\u1ed1t ch\u00e1y metan b\u1eb1ng oxy<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/So-do-thi-nghiem-dot-chay-khi-metan-2.png\" alt=\"S\u01a1 \u0111\u1ed3 th\u00ed nghi\u1ec7m \u0111\u1ed1t metan. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Hi\u1ec7n t\u01b0\u1ee3ng:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Sau khi \u0111\u1ed1t, c\u00f3 nh\u1eefng gi\u1ecdt n\u01b0\u1edbc nh\u1ecf b\u00e1m v\u00e0o th\u00e0nh \u1ed1ng th\u1eed.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110\u1ed5 dung d\u1ecbch n\u01b0\u1edbc v\u00f4i v\u00e0o \u1ed1ng nghi\u1ec7m sau khi \u0111\u1ed1t dung d\u1ecbch xu\u1ea5t hi\u1ec7n m\u1edd \u0111\u1ee5c.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u1ed0ng ki\u1ec3m tra n\u00f3ng l\u00ean.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">K\u1ebft lu\u1eadn:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">L\u1eeda h\u00ecnh th\u00e0nh carbon dioxide, h\u01a1i n\u01b0\u1edbc. <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u1ea3n \u1ee9ng t\u1ecfa ra r\u1ea5t nhi\u1ec1u nhi\u1ec7t.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc: CH4 (K) + 2O2 (k) \u2192 CO2 (k) + 2H2O (h) (\u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9)<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">L\u01b0u \u00fd: H\u1ed7n h\u1ee3p c\u1ee7a m\u1ed9t th\u1ec3 t\u00edch kh\u00ed m\u00ea -tan v\u00e0 hai th\u1ec3 t\u00edch oxy l\u00e0 h\u1ed7n h\u1ee3p n\u1ed5 m\u1ea1nh.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/hinh-anh-vu-no-trong-khai-thac-than-9.jpg\" alt=\"H\u00ecnh \u1ea3nh c\u1ee7a v\u1ee5 n\u1ed5 trong \u0111\u01b0\u1eddng h\u1ea7m than v\u00e0 trong c\u1ed1ng do s\u1ef1 t\u00edch t\u1ee5 c\u1ee7a kh\u00ed metan. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Hieu_qua_voi_clo\"><\/span>Hi\u1ec7u qu\u1ea3 v\u1edbi clo<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Th\u00ed nghi\u1ec7m: Cung c\u1ea5p m\u1ed9t h\u1ed7n h\u1ee3p metan v\u00e0 clo \u0111\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi nhau trong m\u1ed9t b\u1ec3 k\u00edn, v\u1edbi \u0111i\u1ec1u ki\u1ec7n \u00e1nh s\u00e1ng.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/Thi-nghiem-metan-phan-ung-clo.png\" alt=\"Th\u00ed nghi\u1ec7m metan ph\u1ea3n \u1ee9ng v\u1edbi clo khi c\u00f3 \u00e1nh s\u00e1ng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Hi\u1ec7n t\u01b0\u1ee3ng: <\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ban \u0111\u1ea7u h\u1ed7n h\u1ee3p kh\u00ed m\u00e0u v\u00e0ng c\u1ee7a clo. Sau m\u1ed9t th\u1eddi gian, m\u00e0u v\u00e0ng m\u1edd d\u1ea7n \u0111i. <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Th\u00eam n\u01b0\u1edbc v\u00e0 nh\u00fang qu\u1ef3 m\u00e0u t\u00edm v\u00e0o b\u00ecnh \u0111\u1ec3 th\u1ea5y \u0111\u1ea7u qu\u1ef3 m\u00e0u t\u00edm chuy\u1ec3n sang m\u00e0u \u0111\u1ecf.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">K\u1ebft lu\u1eadn:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Metan ph\u1ea3n \u1ee9ng v\u1edbi clo khi c\u00f3 \u00e1nh s\u00e1ng, s\u1ea3n ph\u1ea9m thu \u0111\u01b0\u1ee3c sau ph\u1ea3n \u1ee9ng axit, v\u00ec v\u1eady khi h\u1ea3i qu\u1ef3 t\u00edm \u1ea9m, \u0111\u1ea7u g\u1ed1i m\u00e0u t\u00edm c\u00f3 m\u00e0u \u0111\u1ecf.<\/p>\n<\/li>\n<\/ul>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc: CH4 + CL2 \u2192 HCL + CH3CL (clo metan)<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Trong ph\u1ea3n \u1ee9ng n\u00e0y, nguy\u00ean t\u1eed hydro c\u1ee7a metan \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng c\u00e1c nguy\u00ean t\u1eed clo, do \u0111\u00f3 n\u00f3 \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u1ea3n \u1ee9ng. N\u1ebfu kh\u00ed clo \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, to\u00e0n b\u1ed9 nguy\u00ean t\u1eed hydro trong ph\u00e2n t\u1eed metan c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng nguy\u00ean t\u1eed clo.<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Lam_the_nao_de_chuan_bi_metan\"><\/span>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 chu\u1ea9n b\u1ecb metan?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">C\u00f3 nhi\u1ec1u c\u00e1ch \u0111\u1ec3 chu\u1ea9n b\u1ecb kh\u00ed m\u00ea -tan, nh\u01b0ng kh\u00ed n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c chu\u1ea9n b\u1ecb v\u00e0 \u00e1p d\u1ee5ng h\u1ea7u h\u1ebft trong hai m\u00f4i tr\u01b0\u1eddng ph\u1ed5 bi\u1ebfn: ph\u00f2ng th\u00ed nghi\u1ec7m v\u00e0 c\u00f4ng nghi\u1ec7p. <\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Chuan_bi_khi_me_-tan_trong_phong_thi_nghiem\"><\/span>Chu\u1ea9n b\u1ecb kh\u00ed m\u00ea -tan trong ph\u00f2ng th\u00ed nghi\u1ec7m<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">M\u1ed9t s\u1ed1 c\u00e1ch ph\u1ed5 bi\u1ebfn \u0111\u1ec3 chu\u1ea9n b\u1ecb CH4 trong ph\u00f2ng th\u00ed nghi\u1ec7m nh\u01b0 sau:<\/p>\n<p dir=\"ltr\">Khi c\u1ea7n m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf metan, m\u1ecdi ng\u01b0\u1eddi \u0111\u1ed1t natri acetate b\u1eb1ng v\u00f4i soda \u0103n da, ho\u1eb7c chu\u1ea9n b\u1ecb b\u1eb1ng cacbua nh\u00f4m \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng v\u1edbi n\u01b0\u1edbc.<\/p>\n<ul>\n<li dir=\"ltr\">Chu\u1ea9n b\u1ecb CH4 t\u1eeb nh\u00f4m cacbua:<\/li>\n<\/ul>\n<p dir=\"ltr\" role=\"presentation\">AL4C3 + 12H2O \u2192 4AL (OH) 3 + 3CH4<\/p>\n<ul>\n<li dir=\"ltr\">Ph\u1ea3n \u1ee9ng mu\u1ed1i natri acetate v\u1edbi soda \u0103n da \u0111\u1ec3 t\u1ea1o ra kh\u00ed metan (mu\u1ed1i natri c\u1ee7a axit cacboxylic):<\/li>\n<\/ul>\n<p dir=\"ltr\" role=\"presentation\">CH3 &#8211; Coona + NaOH \u2192 (CaO, nhi\u1ec7t \u0111\u1ed9) Na2Co3 + CH4<\/p>\n<ul>\n<li dir=\"ltr\">C\u00e1ch chu\u1ea9n b\u1ecb metanol b\u1eb1ng ph\u1ea3n \u1ee9ng hydro c\u1ed9ng v\u1edbi carbon:<\/li>\n<\/ul>\n<p dir=\"ltr\" role=\"presentation\">C + 2H2 \u2192 (Nhi\u1ec7t \u0111\u1ed9, Ni) CH4<\/p>\n<ul>\n<li dir=\"ltr\">C\u00e1ch chu\u1ea9n b\u1ecb CH4 t\u1eeb CO:<\/li>\n<\/ul>\n<p dir=\"ltr\" role=\"presentation\">CO + 3H2 \u2192 (Nhi\u1ec7t \u0111\u1ed9) H2O + CH4<\/p>\n<p dir=\"ltr\">Ho\u1eb7c chu\u1ea9n b\u1ecb CH4 b\u1eb1ng c\u00e1ch lo\u1ea1i b\u1ecf c\u00e1c d\u1eabn xu\u1ea5t methyl c\u1ee7a halogen, r\u01b0\u1ee3u ho\u1eb7c carbonyl.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Dieu_che_khi_me_-tan_trong_nganh\"><\/span>\u0110i\u1ec1u ch\u1ebf kh\u00ed m\u00ea -tan trong ng\u00e0nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Trong ng\u00e0nh c\u00f4ng nghi\u1ec7p, kh\u00ed m\u00ea -tan v\u00e0 \u0111\u1ed3ng nghi\u1ec7p \u0111\u01b0\u1ee3c t\u00e1ch ra kh\u1ecfi kh\u00ed \u0111\u1ed1t t\u1ef1 nhi\u00ean v\u00e0 d\u1ea7u. \u0110\u00e2y l\u00e0 c\u00e1ch d\u1ec5 nh\u1ea5t v\u00e0 nhanh nh\u1ea5t \u0111\u1ec3 chu\u1ea9n b\u1ecb CH4.<\/p>\n<p dir=\"ltr\">Xem th\u00eam: <\/p>\n<ul>\n<li>H\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 l\u00e0 g\u00ec? Kh\u00e1i ni\u1ec7m v\u1ec1 c\u00e1c h\u1ee3p ch\u1ea5t h\u00f3a h\u1ecdc h\u1eefu c\u01a1 v\u00e0 h\u1eefu c\u01a1<\/li>\n<li>T\u00ecm hi\u1ec3u v\u1ec1 silicon dioxide l\u00e0 g\u00ec? Nh\u1eefng \u1ee9ng d\u1ee5ng c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p silicat c\u00f3?<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Ap_dung_khi_metan\"><\/span>\u00c1p d\u1ee5ng kh\u00ed m\u00eatan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Kh\u00ed m\u00ea -tan l\u00e0 m\u1ed9t trong nh\u1eefng v\u1eadt li\u1ec7u quan tr\u1ecdng nh\u1ea5t kh\u00f4ng th\u1ec3 thi\u1ebfu trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p v\u00e0 cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y c\u1ee7a con ng\u01b0\u1eddi. <\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/ung-dung-cua-metan-19.jpg\" alt=\"M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng c\u1ee7a metan trong th\u1ef1c t\u1ebf. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Ung_dung_trong_nhien_lieu\"><\/span>\u1ee8ng d\u1ee5ng trong nhi\u00ean li\u1ec7u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Nh\u1edd th\u1ebf h\u1ec7 nhi\u1ec7t cao, kh\u00ed m\u00eatan tr\u1edf th\u00e0nh m\u1ed9t lo\u1ea1i nhi\u00ean li\u1ec7u quan tr\u1ecdng \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn v\u00e0 s\u1eed d\u1ee5ng b\u1edfi con ng\u01b0\u1eddi \u0111\u1ec3 s\u1ea3n xu\u1ea5t \u0111i\u1ec7n, cung c\u1ea5p h\u1ec7 th\u1ed1ng s\u01b0\u1edfi ho\u1eb7c nhi\u00ean li\u1ec7u cho \u0111\u1ed9ng c\u01a1 xe h\u01a1i. <\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/khi-metan-la-gi-9.jpg\" alt=\"\u00c1p d\u1ee5ng kh\u00ed m\u00eatan trong nhi\u00ean li\u1ec7u. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Kh\u00ed m\u00ea -tan l\u00e0m nhi\u00ean li\u1ec7u cho l\u00f2 n\u01b0\u1edbng, nh\u00e0 ho\u1eb7c n\u01b0\u1edbc n\u00f3ng, l\u00f2, &#8230; v\u1edbi c\u01a1 ch\u1ebf \u0111\u1ed1t oxy \u0111\u1ec3 t\u1ea1o ra nhi\u1ec7t.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Metan \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c ph\u00e1t \u0111i\u1ec7n khi \u0111\u1ed1t n\u00f3 nh\u01b0 m\u1ed9t nhi\u00ean li\u1ec7u trong tuabin kh\u00ed. Trong nh\u00e0 m\u00e1y nhi\u1ec7t \u0111i\u1ec7n, metan \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m nhi\u00ean li\u1ec7u k\u1ebft h\u1ee3p v\u1edbi than \u0111\u1ec3 t\u1ea1o ra hi\u1ec7u \u1ee9ng t\u1ed1t, \u0111\u1ed3ng th\u1eddi gi\u1ea3m thi\u1ec3u nguy c\u01a1 \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng.<\/p>\n<\/li>\n<\/ul>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">B\u1edfi v\u00ec h\u00e0m l\u01b0\u1ee3ng metan trong kh\u00ed m\u1ecf c\u00f3 th\u1ec3 \u0111\u1ea1t 98%, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m nhi\u00ean li\u1ec7u cho \u0111\u1ed9ng c\u01a1 xe h\u01a1i.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">Tuy nhi\u00ean, metan than v\u00e0 nhi\u00ean li\u1ec7u kh\u00ed kh\u00e1c c\u00f3 m\u1ee9c n\u0103ng l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng th\u1ea5p. Trong \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng, m\u1ee9c nhi\u1ec7t c\u1ee7a 1 l\u00edt metan than l\u00e0 kho\u1ea3ng 33-36 kJ. Trong khi \u0111\u00f3, nhi\u1ec7t thu \u0111\u01b0\u1ee3c sau qu\u00e1 tr\u00ecnh \u0111\u1ed1t ch\u00e1y 1 l\u00edt x\u0103ng \u1edf m\u1ee9c 31.400 kJ, l\u1edbn h\u01a1n 1.000 l\u1ea7n so v\u1edbi kh\u00ed metan. Do \u0111\u00f3, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 x\u00e1c nh\u1eadn r\u1eb1ng kh\u00ed metan than c\u00f3 th\u1ec3 t\u1ea1o ra nhi\u00ean li\u1ec7u \u0111\u1ed9ng c\u01a1 \u00f4 t\u00f4 \u1edf d\u1ea1ng n\u00e9n ho\u1eb7c h\u00f3a l\u1ecfng.<\/p>\n<p dir=\"ltr\">Vi\u1ec7c ph\u00e2n t\u00edch \u0111\u1ed9c t\u00ednh c\u1ee7a \u0111\u1ed9c t\u00ednh c\u1ee7a xe \u0111\u00e3 cho th\u1ea5y k\u1ebft qu\u1ea3 t\u1ed1t khi thay th\u1ebf nhi\u00ean li\u1ec7u x\u0103ng b\u1eb1ng kh\u00ed m\u00ea -tan than. Kh\u00ed th\u1ea3i th\u00e0nh ph\u1ea7n kh\u00ed chi ti\u1ebft (G\/km) v\u00e0o m\u00f4i tr\u01b0\u1eddng \u0111\u00e3 gi\u1ea3m nhi\u1ec1u l\u1ea7n: carbon oxit 5-10 l\u1ea7n, hydrocarbon -3 l\u1ea7n v\u00e0 nh\u00f3m oxit nit\u01a1 -cho 1,5 -2,5 l\u1ea7n &#8230;<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Ngo\u00e0i ra, \u1edf nhi\u1ec1u n\u01a1i, metan c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 &#8220;kh\u00ed t\u1ef1 nhi\u00ean&#8221; &#8211; c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t cho m\u1ed7i ng\u00f4i nh\u00e0 \u0111\u1ec3 s\u01b0\u1edfi \u1ea5m v\u00e0 n\u1ea5u \u0103n. <\/p>\n<\/li>\n<\/ul>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Ung_dung_trong_nganh_cong_nghiep\"><\/span>\u1ee8ng d\u1ee5ng trong ng\u00e0nh c\u00f4ng nghi\u1ec7p<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Metan hi\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u ph\u1ea3n \u1ee9ng c\u00f4ng nghi\u1ec7p kh\u00e1c nhau v\u00e0 \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n m\u1ed9t c\u00e1ch an to\u00e0n d\u01b0\u1edbi d\u1ea1ng kh\u00ed h\u00f3a l\u1ecfng. <\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Trong h\u00f3a h\u1ecdc c\u00f4ng nghi\u1ec7p, metan l\u00e0 nguy\u00ean li\u1ec7u ch\u00ednh \u0111\u1ec3 s\u1ea3n xu\u1ea5t hydro, metanol, axit axetic v\u00e0 axit axetic.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Kh\u00ed m\u00ea -tan l\u00e0 nguy\u00ean li\u1ec7u th\u00f4 \u0111\u1ec3 chu\u1ea9n b\u1ecb H2 theo ph\u01b0\u01a1ng tr\u00ecnh:<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">                      CH4 + H2O (T \u00b0, XT) \u2192 CO2 + H2<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Kh\u00ed m\u00ea -tan l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh \u0111\u1ec3 chu\u1ea9n b\u1ecb b\u1ed9t than v\u00e0 nhi\u1ec1u h\u00f3a ch\u1ea5t kh\u00e1c nh\u01b0 metanol, anhydride acetic ho\u1eb7c axit axetic &#8230;<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tap_the_duc_tren_Methan_%E2%80%93_Hoa_hoc_SGK_9_voi_cac_giai_phap\"><\/span>T\u1eadp th\u1ec3 d\u1ee5c tr\u00ean Methan &#8211; H\u00f3a h\u1ecdc SGK 9 v\u1edbi c\u00e1c gi\u1ea3i ph\u00e1p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">T\u1eeb ki\u1ebfn \u200b\u200bth\u1ee9c tr\u00ean, b\u1ea1n \u00e1p d\u1ee5ng ki\u1ebfn \u200b\u200bth\u1ee9c \u0111\u00f3 l\u1ea1i v\u1edbi nhau \u0111\u1ec3 gi\u1ea3i quy\u1ebft m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp sau.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/khi-metan-la-gi-1.jpg\" alt=\"\u00c1p d\u1ee5ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i t\u1eadp m\u00eatan. (\u1ea2nh: Shutterstock.com)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_2\"><\/span>B\u00e0i 2<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Trong c\u00e1c ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc sau \u0111\u00e2y, ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc n\u00e0o l\u00e0 ch\u00ednh x\u00e1c? Ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a ch\u1ea5t n\u00e0o sai?<\/p>\n<p dir=\"ltr\">a) CH4 + CL2 \u2192 CH2CL2 + H2 (\u00e1nh s\u00e1ng)<\/p>\n<p dir=\"ltr\">B) CH4 + CL2 \u2192 CH2 + 2HCL (\u00e1nh s\u00e1ng)<\/p>\n<p dir=\"ltr\">C) 2Ch4 + CL2 \u2192 2Ch3Cl + H2 (\u00e1nh s\u00e1ng)<\/p>\n<p dir=\"ltr\">D) CH4 + CL2 \u2192 CH3CL + HCL (\u00e1nh s\u00e1ng)<\/p>\n<p dir=\"ltr\">\u0110\u1ec1 xu\u1ea5t cho c\u00e2u tr\u1ea3 l\u1eddi: <\/p>\n<p dir=\"ltr\">Ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc ch\u00ednh x\u00e1c l\u00e0 tr\u01b0\u1eddng h\u1ee3p d. C\u00e1c tr\u01b0\u1eddng h\u1ee3p c\u00f2n l\u1ea1i l\u00e0 sai.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_3_Sach_giao_khoa_Hoa_hoc_9_Trang_116\"><\/span>B\u00e0i 3 S\u00e1ch gi\u00e1o khoa H\u00f3a h\u1ecdc 9 Trang 116<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Ho\u00e0n to\u00e0n \u0111\u1ed1t ch\u00e1y 11,2 l\u00edt metan (DKTC). T\u00ednh th\u1ec3 t\u00edch oxy c\u1ea7n thi\u1ebft v\u00e0 th\u1ec3 t\u00edch carbon dioxide h\u00ecnh th\u00e0nh. Bi\u1ebft th\u1ec3 t\u00edch kh\u00ed \u0111o \u0111\u01b0\u1ee3c trong ti\u00eau chu\u1ea9n.<\/p>\n<p dir=\"ltr\">\u0110\u1ec1 xu\u1ea5t cho c\u00e2u tr\u1ea3 l\u1eddi: <\/p>\n<p dir=\"ltr\">NCH4 = 11,2\/22,4 = 0,5 mol<\/p>\n<p dir=\"ltr\">Ph\u01b0\u01a1ng tr\u00ecnh ph\u1ea3n \u1ee9ng:<\/p>\n<p dir=\"ltr\">CH4 + 2O2 \u2192 CO2 + 2H2O<\/p>\n<p dir=\"ltr\">Theo ph\u01b0\u01a1ng tr\u00ecnh: NO2 = 2 x NCH4 = 2 x 0,5 = 1 mol.<\/p>\n<p dir=\"ltr\">NCO2 = NCH4 = 0,5 mol.<\/p>\n<p dir=\"ltr\">VO2 = 1 x 22.4 = 22,4 l\u00edt.<\/p>\n<p dir=\"ltr\">VCO2 = 0,5 x 22,4 = 11,2 l\u00edt.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_4_Trang_116_SGK_Hoa_hoc_9\"><\/span>B\u00e0i 4 Trang 116 SGK H\u00f3a h\u1ecdc 9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">C\u00f3 m\u1ed9t h\u1ed7n h\u1ee3p kh\u00ed c\u1ee7a CO2 v\u00e0 CH4. Vui l\u00f2ng tr\u00ecnh b\u00e0y ph\u01b0\u01a1ng ph\u00e1p h\u00f3a h\u1ecdc \u0111\u1ec3:<\/p>\n<p dir=\"ltr\">a) thu \u0111\u01b0\u1ee3c ch4.<\/p>\n<p dir=\"ltr\">b) thu \u0111\u01b0\u1ee3c CO2.<\/p>\n<p dir=\"ltr\">\u0110\u1ec1 xu\u1ea5t cho c\u00e2u tr\u1ea3 l\u1eddi: <\/p>\n<p dir=\"ltr\">Ph\u01b0\u01a1ng ph\u00e1p h\u00f3a h\u1ecdc \u0111\u1ec3:<\/p>\n<p dir=\"ltr\">a) thu \u0111\u01b0\u1ee3c kh\u00ed ch4:<\/p>\n<p dir=\"ltr\">H\u1ed7n h\u1ee3p kh\u00ed h\u00e0ng \u0111\u1ea7u th\u00f4ng qua dung d\u1ecbch Ca (OH) 2 d\u01b0 th\u1eeba, CO2 \u0111\u01b0\u1ee3c gi\u1eef l\u1ea1i do ph\u1ea3n \u1ee9ng t\u1ea1o ra CaCO3, kh\u00ed bay ra kh\u1ecfi dung d\u1ecbch l\u00e0 CH4 v\u1edbi h\u01a1i n\u01b0\u1edbc, do \u0111\u00f3 n\u00f3 \u0111\u01b0\u1ee3c s\u1ea5y kh\u00f4 cao \u0111\u1ec3 thu \u0111\u01b0\u1ee3c CH4 nguy\u00ean ch\u1ea5t. Ch\u00fang t\u00f4i c\u00f3 nh\u1eefng \u0111i\u1ec1u sau: <\/p>\n<p dir=\"ltr\">CO2 + CA (OH) 2 \u2192 CaCO3 + H2O.<\/p>\n<p dir=\"ltr\">b) \u0110\u1eb7t CaCO3 thu \u0111\u01b0\u1ee3c \u1edf tr\u00ean v\u1edbi dung d\u1ecbch HCl pha lo\u00e3ng, ch\u00fang t\u00f4i s\u1ebd thu \u0111\u01b0\u1ee3c CO2. Vi\u1ec7c l\u00e0m m\u00e1t ng\u01b0ng t\u1ee5 n\u01b0\u1edbc s\u1ebd thu \u0111\u01b0\u1ee3c CO2 tinh khi\u1ebft\/ ch\u00fang ta c\u00f3 ph\u01b0\u01a1ng ph\u00e1p sau: <\/p>\n<p dir=\"ltr\">Caco3 + 2HCl \u2192 CaCl2 + CO2 + H2O<\/p>\n<p dir=\"ltr\">B\u00e0i vi\u1ebft tr\u00ean \u0111\u00e3 cung c\u1ea5p t\u1ea5t c\u1ea3 th\u00f4ng tin v\u1ec1 kh\u00ed m\u00ea -tan, kh\u00e1i ni\u1ec7m, tr\u1ea1ng th\u00e1i, t\u00ednh ch\u1ea5t, \u0111i\u1ec1u ch\u1ebf v\u00e0 \u1ee9ng d\u1ee5ng kh\u00ed n\u00e0y trong cu\u1ed9c s\u1ed1ng. Hy v\u1ecdng r\u1eb1ng th\u00f4ng tin n\u00e0y s\u1ebd gi\u00fap b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c ki\u1ebfn \u200b\u200bth\u1ee9c h\u1eefu \u00edch h\u01a1n v\u00e0 \u00e1p d\u1ee5ng ch\u00fang trong h\u1ecdc t\u1eadp v\u00e0 th\u1ef1c h\u00e0nh.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kh\u00ed m\u00ea -tan (c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc l\u00e0 CH4) l\u00e0 th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a kh\u00ed ch\u00fang ta \u0111ang s\u1eed d\u1ee5ng. V\u1eady metan l\u00e0 g\u00ec? H\u00e3y t\u00ecm ra tr\u1ea1ng th\u00e1i t\u1ef1 nhi\u00ean, t\u00ednh ch\u1ea5t, \u1ee9ng d\u1ee5ng v\u00e0 c\u00e1ch chu\u1ea9n b\u1ecb kh\u00ed m\u00ea -tan trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y. Metan l\u00e0 g\u00ec? Metan kh\u00f4ng m\u00e0u, kh\u00f4ng m\u00f9i,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-20888","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/20888","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/comments?post=20888"}],"version-history":[{"count":1,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/20888\/revisions"}],"predecessor-version":[{"id":24774,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/20888\/revisions\/24774"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=20888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=20888"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=20888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}