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    • 8. 发明授权
    • Process of producing methanol
    • 生产甲醇的方法
    • US4203915A
    • 1980-05-20
    • US945727
    • 1978-09-25
    • Emil SuppHeinz JockelHagen KrummFriedemann Marschner
    • Emil SuppHeinz JockelHagen KrummFriedemann Marschner
    • B01B1/00C01B3/38C07C29/151C07C31/04C07C31/06
    • C07C29/1518B01B1/005C01B3/38C07C29/1512
    • In the production of methanol from gaseous and liquid hydrocarbons having a higher C/H ratio than is stoichiometrically required to produce methanol, wherein said hydrocarbons are catalytically cracked in the presence of water vapor and at a temperature of about 350.degree.-950.degree. C. and under a pressure of about 5-30 bars to produce a synthesis gas containing hydrogen and oxides of carbon, followed by a catalytic reaction of the hydrogen with the oxides of carbon at a temperature of about 230.degree.-280.degree. C. and under a pressure of about 30-150 bars to produce methanol, the improvement which comprises treating the methanol synthesis exhaust gas so as to remove therefrom carbonaceous gaseous constituents so that the residual gas is high in hydrogen, and adding said high-hydrogen residual gas to the hydrocarbons prior to cracking in an amount such that the C/H ratio of the material to be cracked is up to about 5.7, thereby reducing the energy consumption per unit of methanol produced. Advantageously, the cracking of said hydrocarbons is effected in two stages, the carbonaceous gaseous constituents removed from the methanol synthesis exhaust gas being used for indirect heating of the second cracking stage. The removal of the carbonaceous gaseous constituents from the methanol synthesis exhaust gas is effected by contacting such exhaust gas with a molecular sieve, at least part of the high-hydrogen residual gas being added to the hydrocarbons before the second stage, the mixture of hydrocarbons and high-hydrogen residual gas being treated to effect hydrogenation and desulfurization of the hydrocarbons.
    • 在生产甲醇时,由具有比化学计量学上要求的甲醇高的C / H比的气态和液态烃生产甲醇,其中所述烃在水蒸汽存在下和约350-950℃的温度下被催化裂解。 并且在约5-30巴的压力下产生含有氢和碳氧化物的合成气,然后在约230℃-280℃的温度下将氢与碳氧化物进行催化反应,并在 约30-150巴的压力产生甲醇,其改进包括处理甲醇合成废气以从其中除去含碳气体成分,使得残余气体的氢气高,并将高氢残留气体加入烃中 在使裂化材料的C / H比高达约5.7的量开裂之前,从而降低每单位产生的甲醇的能量消耗。 有利地,所述烃的裂化分两个阶段进行,从甲醇合成废气中除去的含碳气体成分用于第二裂解阶段的间接加热。 从甲醇合成废气中除去含碳气体成分是通过使这种废气与分子筛接触,至少部分高氢残余气体在第二阶段之前加入到烃中,烃的混合物和 处理高氢残余气体以进行烃的氢化和脱硫。
    • 9. 发明授权
    • Production of methanol
    • 生产甲醇
    • US4271086A
    • 1981-06-02
    • US35964
    • 1979-05-04
    • Emil SuppHeinz JockelGerhard CorneliusFriedmann Marschner
    • Emil SuppHeinz JockelGerhard CorneliusFriedmann Marschner
    • C07C29/15B01J23/00C01B3/38C07B61/00C07C27/00C07C29/151C07C29/154C07C31/04C07C67/00C07C27/06
    • C07C29/1518C01B3/38Y02P20/52
    • In the production of methanol from gaseous hydrocarbons having a lower C/H ratio than is stoichiometrically required to produce methanol and comprising the steps of catalytically cracking said hydrocarbons in the presence of water vapor at about 830.degree. to 930.degree. C. and about 5 to 30 bars to produce a synthesis gas consisting essentially of hydrogen and oxides of carbon, and subsequently catalytically converting said synthesis gas of hydrogen and oxides of carbon to methanol at about 230.degree. to 280.degree. C. and about 30 to 150 bars, the improvement which comprises transferring heat from the hot synthesis gas to the hydrocarbon-water vapor mixture flowing through the cracking catalyst thereby providing at least part of the heat required for the catalytic cracking of the hydrocarbons and reducing the consumption of thermal-/energy per unit of methanol produced. Advantageously, heat transfer is effected by passing the hot synthesis gas through a convoluted or corrugated tube embedded in the hydrocarbon cracking catalyst. Gaseous carbon-containing constituents of the methanol synthesis exhaust gas are removed by adsorption, and desorption; CO.sub.2 may later be removed from the residual methanol synthesis exhaust gas by methanol scrubbing and subsequent stripping, both the desorbed constituents and the CO.sub.2 being mixed with the hydrocarbons before they are cracked, whereby the C/H ratio of the hydrocarbon feed is raised and the consumption of the thermal-/energy per unit of methanol produced is reduced.
    • 在生产甲醇的过程中,C / H比C / H比低于生产甲醇所需要的化学计量比的气态烃,并且包括在水蒸气存在下在约830-930℃和约5℃下催化裂化所述烃的步骤 30巴以产生基本上由氢和碳的氧化物组成的合成气,随后将氢的合成气和碳的氧化物在约230℃至280℃和约30至150巴下催化转化成甲醇,其改进是 包括将热量从热合成气转移到流过裂解催化剂的烃 - 水蒸汽混合物,从而提供烃的催化裂化所需的至少一部分热量,并减少每单位产生的甲醇的热能/能量消耗 。 有利地,通过使热合成气通过嵌入在烃裂化催化剂中的卷积或波纹管来实现热传递。 通过吸附除去甲醇合成废气的气态含碳成分,解吸; 随后可以通过甲醇洗涤和随后的汽提将二氧化碳从残留的甲醇合成废气中除去,解吸组分和二氧化碳在烃裂解前与烃混合,从而提高烃进料的C / H比 消耗每单位产生的甲醇的热能/能量减少。