Post conversion of a gas containing hydrogen sulphide, the elimination of sulphur crystallized by cooling
    1.
    发明授权
    Post conversion of a gas containing hydrogen sulphide, the elimination of sulphur crystallized by cooling 有权
    后转化含硫化氢的气体,通过冷却消除硫结晶

    公开(公告)号:US06413488B1

    公开(公告)日:2002-07-02

    申请号:US09355067

    申请日:2000-06-19

    IPC分类号: B01D5350

    摘要: A process and an apparatus are described for treatment of a gas containing hydrogen sulphide and sulphur dioxide, for example a Claus plant tail gas, in which the gas is brought into contact with an organic solvent (1) e.g. polyethylene glycol 400, containing a catalyst e.g. sodium salicylate, in at least one gas-liquid reactor-contactor (2) and a gas (20) substantially no longer containing hydrogen sulphide and sulphur dioxide is recovered. A single-phase solution (4) of solvent and sulphur is extracted from the reactor-contactor and a portion is cooled in at least one cooling zone (8) to obtain a suspension of sulphur crystals in the solvent, the crystallised sulphur is separated from the solvent in a separation zone (10), the sulphur-depleted solvent (14, 15) is recovered and recycled at least in part to the reactor-contactor (2), and the sulphur (13) is recovered.

    摘要翻译: 描述了一种用于处理含有硫化氢和二氧化硫的气体的方法和装置,例如克劳斯植物尾气,其中气体与有机溶剂(1)接触。 聚乙二醇400,含有催化剂 在至少一个气液反应器 - 接触器(2)和基本上不再含有硫化氢和二氧化硫的气体(20)中回收水杨酸钠。 从反应器 - 接触器中提取溶剂和硫的单相溶液(4),并在至少一个冷却区(8)中冷却一部分,以获得溶剂中硫结晶的悬浮液,将结晶的硫从 分离区(10)中的溶剂,贫硫溶剂(14,15)被回收并至少部分地再循环到反应器 - 接触器(2)中,并回收硫(13)。

    Process for treating gas containing hydrogen sulfide and sulphur
dioxide, comprising a step for depleting the recycled solvent in sulphur
    2.
    发明授权
    Process for treating gas containing hydrogen sulfide and sulphur dioxide, comprising a step for depleting the recycled solvent in sulphur 失效
    用于处理含有硫化氢和二氧化硫的气体的方法,包括用于耗尽硫中的再循环溶剂的步骤

    公开(公告)号:US5935547A

    公开(公告)日:1999-08-10

    申请号:US929445

    申请日:1997-09-16

    IPC分类号: B01D53/52 C01B17/05 B01D53/50

    CPC分类号: C01B17/05 B01D53/523

    摘要: In a process for treating a gas containing hydrogen sulphide and sulphur dioxide, such as Claus plant tail gas, to substantially reduce emission of sulphur vapor in the treated gases, the process a characterized in that the gas is brought into contact with a solvent (5) in at least one gas-liquid reactor-contactor (2) and a gas (20) is recovered which is sent to a second reactor (102) where it is brought into contact with solvent (105), the solvent (105) being cooled by suitable means (190), to separate a portion of the sulphur from the solvent. The resultant solvent depleted in sulphur, contacts the gas (20) from the first reactor (2). The gas (120) from the second reactor is highly depleted in sulphur vapor. At least one of the reactors contains a catalyst. The solvent may be insoluble in water, e.g. dodecane, tridecane, naphtha, or soluble in water, e.g. glycerol, thiodiglycol, cyclohexanedimethylethanol, or an acid ester. The catalyst may comprise, e.g., alkaline salts of organic acids such as benzoic acid or salicylic acid.

    摘要翻译: 在用于处理含有硫化氢和二氧化硫(例如克劳斯工厂尾气)的气体的方法中,基本上减少处理过的气体中的硫蒸气的排放,其特征在于气体与溶剂(5 )回收至少一个气液反应器 - 接触器(2)和气体(20),将其送至第二反应器(102),在其中与溶剂(105)接触,溶剂(105)为 通过合适的方法(190)冷却,以将一部分硫与溶剂分离。 所产生的硫的溶剂与第一反应器(2)的气体(20)接触。 来自第二反应器的气体(120)高度耗尽硫蒸气。 至少一个反应器含有催化剂。 溶剂可能不溶于水,例如 十二烷,十三烷,石脑油或可溶于水,例如。 甘油,硫二甘醇,环己烷二甲基乙醇或酸酯。 催化剂可以包括例如有机酸的碱性盐,例如苯甲酸或水杨酸。

    Process for converting heavy petroleum residues to hydrogen and gaseous
distillable hydrocarbons
    3.
    发明授权
    Process for converting heavy petroleum residues to hydrogen and gaseous distillable hydrocarbons 失效
    将重质石油残渣转化为氢气和气态可馏分烃的方法

    公开(公告)号:US4609456A

    公开(公告)日:1986-09-02

    申请号:US699540

    申请日:1985-02-08

    CPC分类号: C10G47/26 C10G47/04

    摘要: The invention concerns a process for converting heavy petroleum residues to hydrogen and to gaseous and distillable hydrocarbons, comprising the association of a step of hydropyrolysis (inside tube 3) with a step of catalytic steam-gasification of the formed coke (outside tube 3), characterized in that the hydropyrolysis step is performed in the presence of a solid supporting a carbon gasification catalyst circulating between the hydropyrolysis zone and the coke steam-gasification zone, said steam-gasification being performed in the absence of oxygen.The petroleum residue, hydrogen and steam are introduced respectively through lines 5, 6 and 7.The products are withdrawn through line 10. Heat may be supplied by the radiating tube 4.

    摘要翻译: 本发明涉及将重质石油残余物转化为氢气和气态和可馏出烃的方法,其包括加氢热解步骤(管3内)与成形焦炭(外管3)的催化蒸汽气化步骤的关联, 其特征在于,所述加氢热解步骤在支持在所述加氢热解区和所述焦炭蒸汽 - 气化区之间循环的碳气化催化剂的固体存在下进行,所述蒸汽气化在不存在氧的情况下进行。 石油渣,氢气和蒸汽分别通过管线5,6和7引入。产物通过管线10排出。热量可以由辐射管4供应。

    Process for purifying a hydrogen sulfide containing gas
    6.
    发明授权
    Process for purifying a hydrogen sulfide containing gas 失效
    纯化含硫化氢的气体的方法

    公开(公告)号:US4310497A

    公开(公告)日:1982-01-12

    申请号:US230174

    申请日:1981-01-30

    IPC分类号: B01D53/52 C01B17/50 B01D53/36

    CPC分类号: B01D53/52 C01B17/508

    摘要: A process for purifying a gas containing hydrogen sulfide, wherein said gas is admixed with oxygen and contacted with a carbon mass of specific surface higher than 50 m2/g and containing at least one oxide and/or sulfate of iron and/or copper, at a temperature from 20.degree. to 170.degree. C., the operating conditions being so selected as to avoid a substantial oxidation of said mass and said mass being periodically regenerated by heating to 200.degree.-300.degree. C. in the presence of oxygen, the regenerating conditions being such as to avoid a substantial oxidation of the carbon mass.

    摘要翻译: 一种纯化含有硫化氢的气体的方法,其中所述气体与氧气混合并与特定表面积高于50m2 / g并且含有至少一种铁和/或铜的氧化物和/或硫酸盐的碳质量块接触, 温度为20℃至170℃,选择操作条件以避免所述物质的实质氧化,并且所述物质通过在氧气存在下加热至200-300℃来定期再生,再生 条件是为了避免碳质量的显着氧化。

    Desulphurizing catalytic composition and its use in removing hydrogen sulphide and sulphur dioxide from a gas
    10.
    发明授权
    Desulphurizing catalytic composition and its use in removing hydrogen sulphide and sulphur dioxide from a gas 有权
    脱硫催化剂组合物及其从气体中除去硫化氢和二氧化硫的用途

    公开(公告)号:US06627108B1

    公开(公告)日:2003-09-30

    申请号:US09688388

    申请日:2000-10-17

    IPC分类号: C09K300

    CPC分类号: B01D53/523 C01B17/05

    摘要: A desulphurizing composition for the treatment of CLAUS plant tail gases, comprises: an organic solvent A with a boiling point of more than 200° C. at atmospheric pressure; a catalyst composition B of at least one alkali- or alkaline-earth salt (S) of an organic monoacid or an organic polyacid which has at least one dissociation constant value (pK) in the range 2.2 to 8 such as formic acid, acetic acid, ascorbic acid, fumaric acid, maleic acid, malonic acid, oxalic acid, tartaric acid, benzoic acid, salicyclic acid, and sulphosalicyclic acid; at least one complexing agent (C) such as an alkali or alkaline-earth salt or a ferrous or ferric salt of a mono- or poly-aminocarboxylic acid, citric acid, a sulphocyanide ion, a ferrocyanide ion, a ferricyanide ion, a phosphate ion, a pyrophosphate ion, a fluoride ion and/or a thiosulphate ion; and water (W), in the following proportions by weight: S=0.1% to 30%; C=0.001% to 30%; W=balance.

    摘要翻译: 一种用于处理CLAUS植物尾气的脱硫组合物,包括:在大气压下沸点大于200℃的有机溶剂A;至少一种碱金属或碱土金属盐(S )有机一元酸或有机多酸,其具有至少一个解离常数值(pK)在2.2至8的范围内,例如甲酸,乙酸,抗坏血酸,富马酸,马来酸,丙二酸,草酸,酒石酸 酸,苯甲酸,水杨酸和磺基脂环酸; 至少一种络合剂(C)如碱金属或碱土金属盐或单或多氨基羧酸,柠檬酸,亚砷氰酸根离子,亚铁氰化物离子,铁氰化物离子,磷酸根离子的亚铁或铁盐 离子,焦磷酸根离子,氟离子和/或硫代硫酸根离子; 和水(W),以下列重量比:S = 0.1%至30%; C = 0.001%至30%; W =余量。