CN100567238C - 一种制备二甲醚的方法 - Google Patents
一种制备二甲醚的方法 Download PDFInfo
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- CN100567238C CN100567238C CNB2007100708000A CN200710070800A CN100567238C CN 100567238 C CN100567238 C CN 100567238C CN B2007100708000 A CNB2007100708000 A CN B2007100708000A CN 200710070800 A CN200710070800 A CN 200710070800A CN 100567238 C CN100567238 C CN 100567238C
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- Prior art keywords
- methanol
- dme
- liquid
- dimethyl ether
- raw material
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- 238000000034 method Methods 0.000 title claims abstract description 22
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 title abstract description 99
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 485
- 239000007788 liquid Substances 0.000 claims abstract description 96
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 238000000926 separation method Methods 0.000 claims abstract description 20
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 19
- 239000000047 product Substances 0.000 claims abstract description 17
- 238000011084 recovery Methods 0.000 claims abstract description 16
- 239000002918 waste heat Substances 0.000 claims abstract description 12
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 5
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims description 42
- 238000004821 distillation Methods 0.000 claims description 29
- 230000008016 vaporization Effects 0.000 claims description 29
- 238000009834 vaporization Methods 0.000 claims description 25
- 239000007789 gas Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 21
- 238000009835 boiling Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000018044 dehydration Effects 0.000 claims description 11
- 239000006096 absorbing agent Substances 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 7
- 239000006227 byproduct Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 238000007701 flash-distillation Methods 0.000 claims description 3
- 238000002203 pretreatment Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 239000003054 catalyst Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 238000007086 side reaction Methods 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 150000001298 alcohols Chemical class 0.000 description 4
- -1 aldehydes Compound Chemical class 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- BYFGZMCJNACEKR-UHFFFAOYSA-N Al2O Inorganic materials [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 1
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229960004217 benzyl alcohol Drugs 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2007100708000A CN100567238C (zh) | 2007-08-17 | 2007-08-17 | 一种制备二甲醚的方法 |
Applications Claiming Priority (1)
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CNB2007100708000A CN100567238C (zh) | 2007-08-17 | 2007-08-17 | 一种制备二甲醚的方法 |
Publications (2)
Publication Number | Publication Date |
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CN101125803A CN101125803A (zh) | 2008-02-20 |
CN100567238C true CN100567238C (zh) | 2009-12-09 |
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CNB2007100708000A Active CN100567238C (zh) | 2007-08-17 | 2007-08-17 | 一种制备二甲醚的方法 |
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Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101550066B (zh) * | 2008-12-26 | 2013-06-05 | 新奥新能(北京)科技有限公司 | 一种气雾剂级二甲醚的生产方法 |
CN101550067B (zh) * | 2009-05-15 | 2013-03-20 | 新奥新能(北京)科技有限公司 | 两段式二甲醚生产方法 |
CN101712595B (zh) * | 2009-10-15 | 2013-08-21 | 云南瑞升烟草技术(集团)有限公司 | 一种无异味高纯二甲醚的制备方法 |
CN102666460A (zh) * | 2009-11-17 | 2012-09-12 | 鲁奇有限责任公司 | 由粗甲醇制备二甲醚 |
CN101851152A (zh) * | 2010-05-07 | 2010-10-06 | 山东清大新能源有限公司 | 一种甲醇气相脱水制二甲醚的方法 |
CN102010301A (zh) * | 2010-11-02 | 2011-04-13 | 东莞市九丰化工有限公司 | 低能耗二甲醚制造工艺及其生产设备 |
CN102225889B (zh) * | 2011-05-17 | 2013-04-03 | 神华宁夏煤业集团有限责任公司 | 一种由甲醇脱水制取二甲醚的方法 |
CN103012076A (zh) * | 2012-12-24 | 2013-04-03 | 新奥科技发展有限公司 | 二甲醚精馏及回收不凝气中二甲醚的方法及装置 |
CN103480161A (zh) * | 2013-03-26 | 2014-01-01 | 新能(张家港)能源有限公司 | 一种甲醇回收塔再沸器控制装置 |
CN103508855A (zh) * | 2013-03-26 | 2014-01-15 | 新能(张家港)能源有限公司 | 一种二甲醚制备装置及方法 |
CN104151145B (zh) * | 2013-12-10 | 2016-01-20 | 中国平煤神马集团蓝天化工股份有限公司遂平化工厂 | 一种二甲醚生产方法 |
CN106045824B (zh) * | 2016-07-28 | 2019-02-22 | 鹤壁宝发能源科技股份有限公司 | 一种带余热发电的二甲醚生产系统及生产工艺 |
CN110437039A (zh) * | 2019-07-30 | 2019-11-12 | 埃得新材料有限公司 | 一种节能的2,6-二甲基苯酚生产工艺 |
CN112358408A (zh) * | 2020-11-30 | 2021-02-12 | 江苏凯美普瑞工程技术有限公司 | 一种甘氨酸的生产工艺及装置 |
CN115321486B (zh) * | 2022-07-23 | 2023-11-17 | 四川红华实业有限公司 | 电子级别三氟化氯纯化方法 |
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2007
- 2007-08-17 CN CNB2007100708000A patent/CN100567238C/zh active Active
Non-Patent Citations (1)
Title |
---|
二甲醚的甲醇气相催化法生产及其在气雾剂中的应用. 梁杰辉.广东化工,第1994年04期. 1994 * |
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CN101125803A (zh) | 2008-02-20 |
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Assignee: Hangzhou Kai Kai high efficiency energy saving Technology Co., Ltd. Assignor: Shen Jianchong Contract record no.: 2010330002082 Denomination of invention: Preparation method for dimethyl ether Granted publication date: 20091209 License type: Exclusive License Open date: 20080220 Record date: 20101021 |
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Address after: 310000, Hangzhou, Zhejiang province Binjiang District Jiangling road 567, New Oriental International Science and technology center, 18 South Patentee after: Shen Jianchong Address before: Hangzhou City, Zhejiang province 310009 Shangcheng District Jiangcheng Road No. 887 building, room 906 West Bank Patentee before: Shen Jianchong |