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公开(公告)号：US3963825A
公开(公告)日：1976-06-15
申请号：US256057
申请日：1972-05-23
申请人： Karl Bratzler , Alexander Doerges , Georg Kempf , Paul Rudolph , Johann Schlauer
发明人： Karl Bratzler , Alexander Doerges , Georg Kempf , Paul Rudolph , Johann Schlauer
CPC分类号： C10K1/122 , Y02P20/129
摘要： Gases produced by reacting fuels with oxygen containing gases and water vapor under pressure are desulfurized by scrubbing with a concentrated solution of one or more alkali salts of weak inorganic acids at a temperature near the atmospheric-pressure boiling point of the solution in a column while maintaining an exchange ratio of from 0.2 to 2.0 cubic meters of the concentrated solution per standard cubic meter hydrogen sulfide in the gas to be purified.
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公开(公告)号：US3931389A
公开(公告)日：1976-01-06
申请号：US517343
申请日：1974-10-23
申请人： Karl Bratzler , Alexander Dorges , Georg Kempf , Paul Rudolph , Johann Schlauer
发明人： Karl Bratzler , Alexander Dorges , Georg Kempf , Paul Rudolph , Johann Schlauer
摘要： Gases produced by reacting fuels with oxygen containing gases and water vapor under pressure are desulfurized by scrubbing with a concentrated solution of one or more alkali salts of weak inorganic acids at a temperature near the atmospheric-pressure boiling point of the solution in a column while maintaining an exchange ratio of from 0.2 to 2.0 cubic meters of the concentrated solution per standard cubic meter hydrogen sulfide in the gas to be purified.
摘要翻译： 在燃料与含氧气体和水蒸汽在压力下反应生成的气体通过一个或多个弱无机酸的碱金属盐的浓缩溶液在塔的溶液的大气压沸点附近的温度下进行脱硫，同时保持 待纯化气体中标准立方米硫化氢的浓缩溶液的0.2至2.0立方米的交换比。
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公开(公告)号：US4088735A
公开(公告)日：1978-05-09
申请号：US764316
申请日：1977-01-31
CPC分类号： C10K1/06 , B01D53/14 , B01D53/1406 , B01D53/1456 , B01D53/1487 , C10K1/16
摘要： A process for purifying gases produced by the gasification of fossil fuels by a treatment with water vapor and oxygen under superatmospheric pressure. The raw gas produced is treated to remove catalyst-deteriorating impurities such as mono- and polyunsaturated hydrocarbons, mercaptans, HCN, HCl, H.sub.2 S, CS.sub.2, COS, and NH.sub.3, and to desulfurize the gas to produce an exhaust gas which is rich in H.sub.2 S. The gas is cooled and scrubbed under superatmospheric pressures and at normal temperatures. The raw gas, at a temperature of 150.degree.-170.degree. C., is indirectly cooled to ambient temperature. The condensible hydrocarbons are then separated and removed, and the gas is then scrubbed with water to remove ammonia in a first scrubbing stage wherein the rate of water addition is controlled to be just sufficient to remove the ammonia. The gas is then scrubbed with a high-boiling organic solvent which is miscible with water and to which sulfur has been added in a second scrubbing stage in which the rate of solvent addition is controlled in dependence on the solubility of the methyl mercaptan, which is to be removed, in the solvent. The gas is scrubbed with the same solvent in a third scrubbing stage in which the water content of the solvent is kept at 5-30 mol percent H.sub.2 O in which H.sub.2 S and COS are entirely and selectively removed from the gas. Lastly, the scrubbing agents from the second and third scrubbing stages are separately regenerated and recycled to the second and the third scrubbing stages for re-use.
摘要翻译： 通过在超大气压下用水蒸汽和氧气处理来净化化石燃料气化产生的气体的方法。 处理生成的原料气体以除去催化剂恶化的杂质如单不饱和烃，硫醇，HCN，HCl，H 2 S，CS 2，COS和NH 3，并将气体脱硫以产生富H2S的废气 。 在超大气压和常温下将气体冷却和洗涤。 将原料气体在150-170℃的温度间接冷却至环境温度。 然后将可冷凝烃分离并除去，然后在第一次洗涤阶段用水洗涤气体以除去氨，其中加水速率恰好足以除去氨。 然后用高沸点有机溶剂洗涤气体，该高沸点有机溶剂与水混溶，并且在第二洗涤阶段加入了硫，其中根据甲硫醇的溶解度来控制溶剂添加速率， 在溶剂中除去。 在第三个洗涤阶段用相同的溶剂洗涤气体，其中溶剂的水含量保持在5-30mol％H 2 O，其中H 2 S和COS完全从气体中选择性地除去。 最后，来自第二和第三洗涤阶段的洗涤剂分别再生并再循环到第二和第三洗涤阶段以供再利用。
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4.发明授权Process of purifying gases produced by the gasification of solid or liquid fossil fuels 失效通过固体或液体燃料燃料生产的净化气体的过程
公开(公告)号：US4011066A
公开(公告)日：1977-03-08
申请号：US593915
申请日：1975-07-07
CPC分类号： C10K1/08
摘要： A process of purifying gases produced by a gasification of fossil fuels wherein the gas is cooled and scrubbed under superatmospheric pressures at normal temperatures while the raw gas, at a temperature of 150.degree.-170.degree. C, is indirectly cooled to ambient temperatures, the condensible hydrocarbons are separated and removed, the gas is scrubbed with water to remove ammonia in a first scrubbing stage in which the rate of water addition is controlled to be just sufficient to remove the ammonia, the gas is then scrubbed with a high-boiling organic solvent which is miscible with water and to which sulfur is added, the gas is subsequently scrubbed with the same solvent in a third scrubbing stage in which the water content of the solvent is kept at 5-30 mole percent H.sub.2 O and in which H.sub.2 S and COS are entirely removed from the gas, and the scrubbing agents from the second and third scrubbing stages are separately regenerated and recycled to the second and third scrubbing stages.The scrubbing agent used in the second scrubbing stage is flashed approximately to atmospheric pressures, adding water, heating the scrubbing agent to the boiling temperature but not in excess of 170.degree. C, treating the scrubbing agent in a stripping column with water vapor or stripping gas to remove liquid impurities, condensing the mixed vapors, isolating the condensates by phase separation, and feeding part of the aqueous phase as a reflux to the upper portion of the stripping column while the stripped scrubbing agent is cooled and is fed back to the top of the second scrubbing stage.
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公开(公告)号：US3966875A
公开(公告)日：1976-06-29
申请号：US405678
申请日：1973-10-11
申请人： Karl Bratzler , Alexander Doerges
发明人： Karl Bratzler , Alexander Doerges
摘要： A process for desulfurization of fuel or synthesis gases containing carbon oxysulfide wherein the carbon oxysulfide is hydrolyzed by treating the gas at a temperature of 50.degree. to 105.degree.C with a low-volatility organic solvent inert to the carbon oxysulfide and containing 15 to 50 mole-percent water, the hydrolysis products and other sulfur-containing compounds being removed by subsequent scrubbing of the gas.
摘要翻译： 一种含有硫氧化硫的燃料或合成气的脱硫方法，其中通过在对于氧硫化碳是惰性的低挥发性有机溶剂处理50℃至105℃的温度下将含硫氧硫化物水解，并含有15-50摩尔 水，通过随后洗涤气体除去水解产物和其它含硫化合物。
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6.发明授权Process for recovering elemental sulfur from gases having a high carbon dioxide content and containing sulfur compounds 失效从具有高二氧化碳含量和含硫化合物的气体中回收元素硫的方法
公开(公告)号：US4060595A
公开(公告)日：1977-11-29
申请号：US705115
申请日：1976-07-14
CPC分类号： C01B17/0456
摘要： A process for recovering elemental sulfur from gases containing inorganic and/or organic sulfur compounds together with large quantities of carbon dioxide and other possible impurities such as unsaturated hydrocarbon and hydrogen cyanide. The waste gas is combined with a combustion-promoting gas and the resulting mixture is burned with a slight excess of air and caused to contact coke at a temperature of 300.degree. to 450.degree. C. The resulting gas, from which oxygen, sulfur trioxide and nitrogen oxide have been removed, by contact with the coke, is cooled to 20.degree. to 80.degree. C and then is scrubbed with aqueous alkali salts of weak inorganic and/or organic acids or amines to remove SO.sub.2. The absorbent is stripped and the recovered SO.sub.2 is reacted with hydrogen at 200.degree. to 400.degree. C to form sulfur and/or hydrogen sulfide and, when hydrogen sulfide is produced, the latter is reacted on alumina or activated carbon at 200.degree. to 300.degree. C to produce the elemental sulfur. All or part of the gas after recovery of the elemental sulfur is recycled.
摘要翻译： 一种从含有无机和/或有机硫化合物的气体中回收元素硫以及大量二氧化碳和其他可能的杂质如不饱和烃和氰化氢的方法。 将废气与助燃气体结合，将得到的混合物用稍微过量的空气燃烧，并在300-450℃的温度下接触焦炭。所得的气体，氧，三氧化硫和 通过与焦炭接触将氮氧化物除去，冷却至20℃至80℃，然后用弱无机和/或有机酸或胺的碱金属盐水洗涤以除去SO 2。 吸收剂被汽提，回收的SO2与氢气在200-400℃下反应生成硫和/或硫化氢，当产生硫化氢时，后者在氧化铝或活性炭上200〜300℃反应 以产生元素硫。 回收元素硫后全部或部分气体被回收利用。
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公开(公告)号：US4061475A
公开(公告)日：1977-12-06
申请号：US773109
申请日：1977-02-28
摘要： A high methane gas which can be substituted for natural gas is produced from a primary gas made by the gasification of coal, tar, or heavy residual oil under superatmospheric pressures. The primary gas is purified to remove catalyst poisons and is scrubbed to remove carbon dioxide to a residual content below 2% by volume. The water vapor to carbon monoxide volume ratio of the scrubbed gas is adjusted to 0.55 : 1 to 1 : 1 and is then passed through a reaction zone containing a shift conversion catalyst and a methanation catalyst in a volume ratio of approximately 1 : 4 to 1 : 10. The scrubbed gas entering the reaction zone enters the reaction zone at a temperature of 300.degree.-500.degree. C.
摘要翻译： 可以替代天然气的高甲烷气体是由在超大气压下煤，焦油或重残余油气化而成的主要气体产生的。 纯化主要气体以除去催化剂毒素，并将其洗涤以除去二氧化碳至残留含量低于2体积％。 将洗涤气体的水蒸气与一氧化碳体积比调节至0.55:1至1:1，然后通过含有换算转化催化剂和甲烷化催化剂的体积比为约1:4至1的反应区 10.进入反应区的洗涤气体在300-500℃的温度下进入反应区。
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