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    Methanol synthesis
    1.
    发明授权
    Methanol synthesis 失效
    甲醇合成

    公开(公告)号：US5173513A

    公开(公告)日：1992-12-22

    申请号：US668905

    申请日：1991-03-13

    申请人： Alwyn Pinto

    发明人： Alwyn Pinto

    IPC分类号： C07C29/151 ,  C07C45/49

    CPC分类号： C07C29/1512 ,  C07C29/1518 ,  C07C45/49

    摘要： In producing methanol by the reaction of carbon monoxide and hydrogen, a starting gas deficient in hydrogen, e.g. as produced by coal gasification, is mixed with a hydrogen rich gas and fed to a synthesis loop where it is mixed with unreacted gas from the synthesis stage. A part stream of gas is taken from the loop. Either that part stream, or the gas in the loop prior to synthesis, is subjected to the catalytic shift reaction with steam. Carbon dioxide is removed from the gas taken from the loop to form the hydrogen rich stream.

    摘要翻译： 在通过一氧化碳和氢的反应生产甲醇时，缺乏氢的起始气体，例如氢氧化钠。 如通过煤气化产生的，与富氢气体混合并进料到合成回路，在合成回路中与来自合成阶段的未反应气体混合。 从循环中取出一部分气体。 无论是部分物流还是合成前的环路中的气体都与蒸汽进行催化转移反应。 从循环中取出的气体中除去二氧化碳，形成富氢流。

    Methanol production
    3.
    发明授权
    Methanol production 失效
    甲醇生产

    公开(公告)号：US4455394A

    公开(公告)日：1984-06-19

    申请号：US430674

    申请日：1982-09-30

    申请人： Alwyn Pinto

    发明人： Alwyn Pinto

    IPC分类号： C07C29/15 ,  B01J23/72 ,  B01J23/76 ,  B01J23/89 ,  C07C27/00 ,  C07C29/151 ,  C07C29/154 ,  C07C29/80 ,  C07C31/04 ,  C07C67/00 ,  C07C27/06

    CPC分类号： C07C29/1518 ,  B01J23/72 ,  B01J23/76 ,  B01J23/8926 ,  C07C29/80 ,  Y02P20/52

    摘要： In a methanol production process comprising synthesis gas generation, catalytic synthesis, recovery of crude methanol and purification by distillation, organic compounds of higher boiling point than methanol (the so-called "fusel oil" stream) are contacted in liquid form with a gaseous stream to be fed to synthesis gas generation, whereby to convert those compounds to synthesis gas. When an alkali is added to the crude methanol before distillation the contacting step permits utilisation of the organic compounds in the fusel oil, leaving an alkali compounds solution, which is withdrawn.

    摘要翻译： 在包括合成气生成，催化合成，粗甲醇回收和通过蒸馏纯化的甲醇生产方法中，比甲醇高沸点的有机化合物（所谓的“杂醇油”）以液体形式与气流接触 供给合成气产生，从而将这些化合物转化成合成气。 当在蒸馏之前向粗甲醇中加入碱时，接触步骤允许利用杂醇油中的有机化合物，留下取出的碱性化合物溶液。

    Steam-hydrocarbon process
    4.
    发明授权
    Steam-hydrocarbon process 失效
    蒸汽 - 烃过程

    公开(公告)号：US4072625A

    公开(公告)日：1978-02-07

    申请号：US659630

    申请日：1976-02-20

    申请人： Alwyn Pinto

    发明人： Alwyn Pinto

    IPC分类号： C10G9/00 ,  B01J12/00 ,  C01B3/34 ,  C01B3/38 ,  C07C27/00 ,  C07C29/152 ,  C07C31/04 ,  C07C67/00 ,  C10G9/36 ,  C01B2/16

    CPC分类号： C01B3/384 ,  C01B3/38 ,  C07C29/1518 ,  C10G11/00 ,  C10G9/00 ,  C10G9/14 ,  C01B2203/0233 ,  C01B2203/0495 ,  C01B2203/061 ,  C01B2203/0894 ,  C01B2203/1258 ,  C01B2203/84 ,  Y02P20/124 ,  Y02P20/129

    摘要： In a process of reacting a hydrocarbon with steam and/or carbon dioxide in a reaction zone heated by a combustion furnace to give olefins or process gas containing carbon oxides and hydrogen high grade heat is recovered from furnace flue gases and/or process gas whereby to cool such gases to 150-300.degree. C. When the process gas is used in a synthesis of for example methanol or ammonia, gases at 150.degree.-300.degree. C are also produced. Previously the recovery of heat from such low grade heat sources has been inefficient or inconvenient. According to the invention the heat is recovered by means of an intermediary liquid coolant, which is brought into direct heat exchange with streams to be used in the process. Preferably the liquid is water under pressure and is brought into direct heat exchange with a gas to be fed to the process; by this means 10-30% of the steam can be provided from low grade waste heat.

    摘要翻译： 在使烃与蒸汽和/或二氧化碳在由燃烧炉加热的反应区中反应以产生含有碳氧化物和氢气的烯烃或工艺气体的过程中，从炉烟道气和/或工艺气体回收高等级的热量， 将这种气体冷却至150-300℃。当工艺气体用于例如甲醇或氨的合成时，也产生150-300℃的气体。 以前从这种低品位的热源回收的热量效率不高或不方便。 根据本发明，通过中间液体冷却剂回收热量，该中间液体冷却剂与该方法中要使用的物流进行直接热交换。 优选地，液体是在压力下的水，并且与要供给到该方法的气体直接进行热交换; 通过这种方式，10-30％的蒸汽可以由低档余热提供。

    Ammonia synthesis
    7.
    发明授权
    Ammonia synthesis 失效
    氨合成

    公开(公告)号：US4689208A

    公开(公告)日：1987-08-25

    申请号：US908873

    申请日：1986-09-15

    申请人： Alwyn Pinto

    发明人： Alwyn Pinto

    IPC分类号： B01J23/00 ,  C01C1/04 ,  C01C1/12

    CPC分类号： C01C1/0405 ,  C01C1/047 ,  Y02P20/129 ,  Y02P20/52

    摘要： In an ammonia synthesis process a nitrogen-hydrogen gas is reacted partially over a catalyst at a pressure in the range 30-120 bar abs, ammonia is separated as liquid after cooling the reacted synthesis gas and unreacted synthesis gas is recycled. The liquid ammonia is evaporated in heat exchange with reacted synthesis gas to provide the required cooling effect. Such heat exchange is effected using a heat exchange surface (as in a plate-fin heat exchanger) of at least 1.5 m.sup.2 per kg mol per hour of ammonia to be condensed, with cold-end temperature approach of less than 8.degree. C. and a hot-end temperature approach of less than 5.degree. C. whereby exploit the heat effect of, inter alia, the non-ideality of ammonia to provide product gaseous ammonia at a convenient pressure with minimal mechanical refrigeration.

    摘要翻译： 在氨合成过程中，氮 - 氢气在30-120巴绝对压力下部分地在催化剂上反应，在冷却反应的合成气之后，将氨作为液体分离出来，再循环未反应的合成气。 液化氨与反应的合成气热交换蒸发，以提供所需的冷却效果。 这种热交换使用至少1.5m 2 / kg mol /小时氨冷凝的热交换表面（如板翅式热交换器），冷端温度接近小于8℃， 低于5℃的热端温度方法，从而利用特别是氨的非理想性的热效应，以最小的机械制冷在方便的压力下提供产物气态氨。

    Production of ammonia from purified ammonia synthesis gas
    8.
    发明授权
    Production of ammonia from purified ammonia synthesis gas 失效
    从纯氨合成气生产氨

    公开(公告)号：US4469665A

    公开(公告)日：1984-09-04

    申请号：US448475

    申请日：1982-12-10

    申请人： Alwyn Pinto

    发明人： Alwyn Pinto

    IPC分类号： B01D53/04 ,  C01B3/02 ,  C01B3/12 ,  C01B3/50 ,  C01B3/56 ,  C01C1/04

    CPC分类号： B01D53/261 ,  B01D53/04 ,  C01B3/56 ,  B01D2256/16 ,  B01D2259/403 ,  C01B2203/043 ,  C01B2203/0475 ,  C01B2203/0495 ,  Y02C10/08 ,  Y02P20/152

    摘要： A moist hydrogen stream is dried by cooling to below the dewpoint of water and separating water, drying further over a regenerable solid absorbent, separating a part stream of dried gas and using it to regenerate water-loaded absorbent, and recycling the resulting moist regeneration gas stream into the moist hydrogen stream upstream of the water separation step. If the starting moist hydrogen stream is produced by shift, CO.sub.2 -removal and methanation the recycled gas is preferably introduced between CO.sub.2 removal and methanation. If it is produced from unreacted methanol synthesis gas the recycled gas is preferably introduced upstream of methanol synthesis.

    摘要翻译： 将潮湿的氢气流通过冷却至低于水的露点并分离水进行干燥，在可再生的固体吸收剂上进一步干燥，分离干燥气体的一部分流并使用它来再生含水吸收剂，并将所得的湿再生气体 流入水分离步骤上游的潮湿氢气流。 如果通过转移，二氧化碳去除和甲烷化产生起始潮湿氢气流，则优选在循环气体在除去CO 2和甲烷化之间引入。 如果由未反应的甲醇合成气产生，则循环气优选在甲醇合成的上游引入。

    Method for producing a hydrogen-containing gas
    9.
    发明授权
    Method for producing a hydrogen-containing gas 失效
    含氢气体的制造方法

    公开(公告)号：US4264567A

    公开(公告)日：1981-04-28

    申请号：US051408

    申请日：1979-06-25

    申请人： Alwyn Pinto

    发明人： Alwyn Pinto

    IPC分类号： C01B3/48 ,  C01B3/34 ,  C01C1/04 ,  C10J3/72 ,  C01B1/13

    CPC分类号： C01B3/34

    摘要： In a process for producing a hydrogen containing gas by reacting steam with a feedstock to give a gas at a temperature of at least 350.degree. C., generating high pressure steam by heat exchange with such a gas, letting down the steam in an expansion engine of the pass-out type and using engine exhaust steam as process feed, an improvement in energy economy is achieved by bringing the engine exhaust steam into heat exchange with water and contacting the resulting hot water with a gaseous or vaporised feed to the process. The steam exhausted from the engine is preferably at a pressure lower than that at which the steam-using process step is generated. The process is especially useful in ammonia production by way of steam hydrocarbon reforming at an unconventionally high pressure in the range 40-80 bar abs, followed by synthesis at a pressure not more than 50% higher.

    摘要翻译： 在通过使蒸汽与原料反应产生含氢气体的方法中，在至少350℃的温度下产生气体，通过与这种气体的热交换产生高压蒸汽，将膨胀发动机中的蒸汽放下 的通过型和使用发动机排气蒸汽作为进料，通过使发动机排气与水进行热交换并使得到的热水与气态或汽化进料接触，实现了能量效率的改善。 从发动机排出的蒸汽优选的压力低于产生蒸汽使用处理步骤的压力。 该方法在通过在40-80巴绝对压力范围内的非常规高压下的蒸汽烃重整进行氨生产特别有用，接着在不高于50％的压力下进行合成。

    Synthesis gas
    10.
    发明授权
    Synthesis gas 失效
    合成气

    公开(公告)号：US4235800A

    公开(公告)日：1980-11-25

    申请号：US40311

    申请日：1979-05-18

    申请人： Alwyn Pinto

    发明人： Alwyn Pinto

    IPC分类号： C07C29/15 ,  C01B3/14 ,  C07C27/00 ,  C07C29/151 ,  C07C29/154 ,  C07C31/04 ,  C07C67/00

    CPC分类号： C01B3/14 ,  C07C29/1518

    摘要： Methanol is produced from a carbon monoxide stream by reacting carbon monoxide with steam in a catalytic shift reaction, removing any excess steam and at least part of the carbon dioxide from the shifted gas, reacting the resulting gas over a copper-containing methanol synthesis catalyst at under 300.degree. C., heat exchanging reacted synthesis gas with water under pressure and bringing the resulting hot water into direct heat exchange with the carbon monoxide stream to provide steam for the shift reaction. In a preferred process the carbon monoxide stream is freed of non-refractory sulphur compounds before the shift stage and the refractory sulphur compounds are converted in the shift stage to H.sub.2 S, which is removed with the carbon dioxide.

    摘要翻译： 甲醇通过一氧化碳与蒸汽在催化转化反应中反应而从一氧化碳流中产生，从转移的气体中除去任何过量的蒸汽和至少部分二氧化碳，使得到的气体在含铜甲醇合成催化剂上反应 在300℃下，在压力下与水进行热交换反应合成气，并使得到的热水与一氧化碳流直接热交换以提供用于转移反应的蒸汽。 在优选的方法中，一氧化碳流在转移阶段之前不含非难熔硫化合物，并且难溶性硫化合物在转化阶段转化为用二氧化碳除去的H 2 S.