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公开(公告)号:US11420867B2
公开(公告)日:2022-08-23
申请号:US16754868
申请日:2018-10-08
发明人: Alexander Schulz , Johannes Völkl , Sina Kunz , Dierk Müller , Ulrich Koss
IPC分类号: C01B3/02 , C01B3/12 , C01B3/50 , C07C29/151 , C07C31/04
摘要: A process for the combined production of methanol and ammonia, wherein a reactant stream includes carbon monoxide is supplied to a recovery assembly to obtain first and second hydrogen-containing streams, each having an increased molar proportion of hydrogen compared to the reactant stream. The recovery assembly includes a shift conversion in which the carbon monoxide of at least one carbon monoxide-containing stream is at least partially converted into hydrogen and carbon dioxide by reaction with steam to obtain a converted stream having hydrogen and carbon dioxide at least partially recycled to a hydrogen recovery from which the first and second hydrogen-containing streams are obtained. A nitrogen stream and, at least partially, the first hydrogen-containing stream are supplied to an ammonia reactor assembly for at least partial conversion into ammonia and, at least partially, the second hydrogen-containing stream is supplied to a methanol reactor assembly for at least partial conversion into the methanol.
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公开(公告)号:US12030838B2
公开(公告)日:2024-07-09
申请号:US17688371
申请日:2022-03-07
IPC分类号: C07C29/151 , C07C29/74 , C07C29/78 , C07C29/80 , C07C31/04 , C10J1/00 , C10L3/08 , C25B1/04 , C25B15/08 , F25J3/02
CPC分类号: C07C29/1512 , C07C29/1518 , C07C29/78 , C07C29/80 , C10J1/00 , C10L3/08 , C25B1/04 , C25B15/08 , F25J3/0223 , C10J2300/1665 , C10L2290/08 , C10L2290/10 , C10L2290/24 , C10L2290/38 , C10L2290/46 , C10L2290/54 , C10L2290/543 , Y02E60/36 , Y02P20/133 , C07C29/1518 , C07C31/04 , C07C29/80 , C07C31/04 , C07C29/78 , C07C31/04
摘要: A process for preparing methanol by a methanol synthesis reaction of carbon dioxide with hydrogen may involve a distillation step and a condensation step following the synthesis of a crude methanol. A volatile component and water may be separated off from a methanol-containing product stream, and a gas stream containing a volatile component that has been separated off may be discharged at least partially as offgas. At least part of the gas stream that has been separated off may be recirculated into the methanol synthesis reaction. A plant for preparing methanol can store or utilize electric power generated from renewable energy sources and provide facilities for discharging the offgas stream, which can be purified by catalytic after-combustion. Alternatively, the plant can be configured without discharge of an offgas substream, or the offgas streams are so small that they can be released without treatment into the environment at a suitable position.
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公开(公告)号:US11981621B2
公开(公告)日:2024-05-14
申请号:US17425816
申请日:2020-01-24
发明人: Alexander Schulz
IPC分类号: C07C29/152 , B01J19/24
CPC分类号: C07C29/152 , B01J19/2465
摘要: A method for operating a plant for synthesizing methanol, wherein a synthesis gas flow having hydrogen and carbon oxides is supplied to a synthesis gas compressor of the plant to increase the pressure of the synthesis gas flow. The pressure-increased synthesis gas flow is supplied to a methanol reactor arrangement of the plant for partial conversion to methanol. The plant has a hydrogen recovery arrangement which obtains an H-recycling flow including hydrogen from a recovery flow supplied from the methanol reactor arrangement, which hydrogen is converted at least in part to methanol. Upon failure of the synthesis gas compressor, the synthesis gas flow continues to be supplied to the methanol reactor arrangement for partial conversion to methanol. Following failure of the synthesis gas compressor, a line arrangement of the plant is switched such that the H-recycling flow is adjusted to compensate for a pressure loss in the methanol reactor arrangement.
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公开(公告)号:US09422213B2
公开(公告)日:2016-08-23
申请号:US14428298
申请日:2013-09-10
发明人: Melanie Bauer , Harald Kömpel , Alexander Schulz
CPC分类号: C07C41/09 , B01D3/002 , B01D3/009 , B01D3/143 , B01J8/0457 , B01J19/245 , B01J2208/00256 , B01J2208/065 , B01J2219/00006 , B01J2219/00103 , B01J2219/24 , C07C41/42 , Y02P20/127 , C07C43/043
摘要: The present disclosure relates to a method and apparatus for producing dimethyl ether by catalytic dehydration of methanol and by distillation of the dehydration product. The method is characterized in that the catalytic dehydration takes place in at least two reaction stages which are connected in series and of which at least the first reaction stage is operated adiabatically, wherein a cooling of the reaction products takes place at least between the first and the second reaction stages.
摘要翻译: 本公开涉及通过甲醇的催化脱水和蒸馏脱水产物生产二甲醚的方法和装置。 该方法的特征在于催化脱水在串联连接的至少两个反应阶段中进行,其中至少第一反应阶段被绝热地进行,其中反应产物的冷却至少在第一和第 第二反应阶段。
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