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    • 81. 发明授权
    • Process for scavenging H.sub.2 S by mixtures of hexahydrotriazines
    • 通过六氢三嗪混合物清除H2S的方法
    • US5554349A
    • 1996-09-10
    • US302548
    • 1994-09-08
    • Gordon T. RiversRichard L. Rybacki
    • Gordon T. RiversRichard L. Rybacki
    • B01D53/52C07D251/04B01D53/48
    • B01D53/52C07D251/04C09K8/532C23F11/10C23F11/149C09K2208/20Y02P20/51
    • A mixture of amines made by reacting an amine compound with an aldehyde compound has been found to reduce the levels of H.sub.2 S in liquid or gaseous hydrocarbon streams. At least one of the compounds must have an alkoxyalkylene radical. In one embodiment of the invention, the mixture of amines contains at least one hexahydrotriazine compound of the formula: ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are independently selected from the group consisting of hydrogen and an alkyl radical, including substituted alkyl radicals, of 1 to 5 carbon atoms; where at least one of the groups is an alkoxyalkylene group. In another embodiment of the invention, the amine mixture may contain other by products, such as the monomers which make up the hexahydrotriazine, with or without the hexahydrotriazine being present. These materials are selective to the reduction of H.sub.2 S levels in hydrocarbon or aqueous streams in the presence of CO.sub.2 which does not compromise their performance.
    • 已经发现通过使胺化合物与醛化合物反应制得的胺的混合物降低液态或气态烃流中的H 2 S的水平。 至少一种化合物必须具有烷氧基亚烷基。 在本发明的一个实施方案中,胺的混合物含有至少一种下式的六氢三嗪化合物:其中R 1,R 2,R 3,R 4,R 5和R 6独立地选自氢和 具有1-5个碳原子的烷基,包括取代的烷基; 其中至少一个基团是烷氧基亚烷基。 在本发明的另一个实施方案中,胺混合物可以含有其它产物,例如构成六氢三嗪的单体,存在或不存在六氢三嗪。 这些材料对于在不影响其性能的CO 2存在下在烃或水流中降低H 2 S水平是选择性的。
    • 82. 发明授权
    • Carbonyl sulfide abatement in fluids
    • 流体中的羰基硫化物减少
    • US5523069A
    • 1996-06-04
    • US147624
    • 1993-11-05
    • M. Linda Lin
    • M. Linda Lin
    • B01D53/48
    • B01D53/485Y10S423/19
    • A method for removing carbonyl sulfide from fluids, particularly gases, involves contacting them with alkaline aqueous solutions containing peroxide and hindered amine. The sulfur products so formed can then be separated from the fluid. In one embodiment, gas containing carbonyl sulfide is cycled through a wet scrubber containing a solution of hydrogen peroxide and methyldiethanolamine, triethylamine, dimethylmonoethanolamine, diethylmonoethanolamine, triethanolamine, 2-amino-2-meth-yl-1-propanol, and/or 1,8-p-menthanediaminemethyldiethanolamine at a pH of about 9 to 11, e.g., about 10. Methyldiethanolamine is preferred in one embodiment. A dispersant such as a water-soluble polymer having a molecular weight of about 500 to 100,000 may optionally be employed in the solution. Abatement of greater than 90% of the carbonyl sulfide is achieved in preferred embodiments.
    • 从流体,特别是气体中除去羰基硫的方法包括使它们与含有过氧化物和受阻胺的碱性水溶液接触。 这样形成的硫产物可以与流体分离。 在一个实施方案中,含有硫化羰的气体循环通过含有过氧化氢和甲基二乙醇胺,三乙胺,二甲基一乙醇胺,二乙基单乙醇胺,三乙醇胺,2-氨基-2-甲基-1-丙醇和/ 8-p-薄荷氨基甲基二乙醇胺,pH为约9至11,例如约10.在一个实施方案中,优选甲基二乙醇胺。 分散剂如分子量约为500至100,000的水溶性聚合物可以任选地用于溶液中。 在优选的实施方案中可以实现大于90%的硫化羰的消除。
    • 85. 发明授权
    • Process for the removal of sulphur compounds from gases
    • 从气体中除去硫化合物的方法
    • US5354545A
    • 1994-10-11
    • US70336
    • 1993-05-26
    • Cees J. N. Buisman
    • Cees J. N. Buisman
    • B01D53/14B01D53/34B01D53/48B01D53/50B01D53/52B01D53/77B01D53/84C01B17/05C02F3/34C12S5/00C01B17/00
    • C12M47/18B01D53/48B01D53/507B01D53/52B01D53/84C01B17/05C02F3/345C12M21/04Y02C10/06Y02E50/343Y10S423/17
    • A process for the removal of sulphur compounds from a gaseous effluent, comprising the steps of: a) contacting the gaseous effluent with an aqueous solution wherein sulphur compounds are dissolved; b) adjusting the concentration of buffering compounds such as carbonate and/or bicarbonate and/or phosphate in the aqueous solution to a value between 20 and 2000 meq/l; c) subjecting the aqueous solution containing sulphide to sulphide-oxidizing bacteria in the presence of oxygen in a reactor wherein sulphide is oxidized to elemental sulphur; d) separating elemental sulphur from the aqueous solution; and e) recycling the aqueous solution to step a). This process is suitable for removing H.sub.2 S from biogas, ventilation air etc. It can be used for removing SO.sub.2 from combustion gases by introducing the additional step, after step a) and before step c), of subjecting the aqueous solution containing the sulphur compounds to a reduction of the sulphur compounds to sulphide. H.sub.2 S and SO.sub.2 removal is further enhanced by a residual sulphur content in the washing liquid of 1-50 g/l.
    • PCT No.PCT / NL91 / 00250 Sec。 371日期:1993年5月26日 102(e)日期1993年5月26日PCT 1991年12月4日PCT PCT。 出版物WO92 / 10270 日期:1992年6月25日。一种从气态流出物中除去硫化合物的方法,包括以下步骤:a)使气态流出物与其中硫化合物溶解的水溶液接触; b)将水溶液中缓冲化合物如碳酸盐和/或碳酸氢盐和/或磷酸盐的浓度调节至20至2000meq / l之间的值; c)在其中硫化物被氧化成元素硫的反应器中,使含有硫化物的水溶液在氧气存在下进行硫化物氧化细菌; d)从水溶液中分离元素硫; 和e)将水溶液再循环到步骤a)。 该方法适用于从沼气,通风空气等中除去H2S。可以在步骤a)和步骤c)之后引入附加步骤,将含硫化合物的水溶液 将硫化合物还原成硫化物。 H2S和SO2的去除通过洗涤液中残留的硫含量进一步提高了1-50g / l。
    • 87. 发明授权
    • Method and apparatus for treating hydrocarbon gas streams contaminated
with carbonyl sulfide
    • 用于处理受硫化羰污染的烃类气流的方法和装置
    • US5298228A
    • 1994-03-29
    • US941509
    • 1992-09-08
    • S. Travis PalomaresThomas G. Morrison
    • S. Travis PalomaresThomas G. Morrison
    • B01D53/18B01D53/48B01J10/00C01B17/00
    • B01J10/00B01D53/18B01D53/485Y10S203/06
    • An improved method of reducing the concentration of carbonyl sulfide in a hydrocarbon gas containing carbonyl sulfide, which method comprises (a) feeding the hydrocarbon gas containing carbonyl sulfide to a hydrolysis section to contact the hydrocarbon gas with hot aqueous absorbent to heat the hydrocarbon gas to form hydrolysis section effluent absorbent and hydrolysis section effluent gas containing carbon dioxide and hydrogen sulfide and having a lower concentration of carbonyl sulfide than the hydrocarbon gas; (b) withdrawing and cooling the hydrolysis section effluent absorbent to form a cool aqueous absorbent; (c) cooling the hydrolysis section effluent gas in a cooling section by contacting the hydrolysis section effluent gas with the cool aqueous absorbent to form warm aqueous absorbent and a cooling section effluent gas containing hydrogen sulfide and carbon dioxide; (d) heating the warm aqueous absorbent to form hot aqueous absorbent; (e) feeding the hot aqueous absorbent to the hydrolysis section; and, (f) recovering the cooling section effluent gas as product and an apparatus for treating hydrocarbon gas.
    • 一种降低含硫羰基硫化物的烃气体中羰基硫化物浓度的改进方法,该方法包括(a)将含有羰基硫化物的烃气体进料到水解部分,以使烃气与热水吸收剂接触以将烃气体加热至 形成水解段废水和水解段,含有二氧化碳和硫化氢的排放气体,其碳氢化合物浓度低于烃气; (b)取出并冷却水解段流出物吸收剂以形成冷的含水吸收剂; (c)通过使水解部分流出气体与冷的含水吸收剂接触来冷却冷却部分中的水解部分流出气体,以形成温水性吸收剂和含有硫化氢和二氧化碳的冷却段流出气体; (d)加热温热的含水吸收剂以形成热水性吸收剂; (e)将热水性吸收剂供给水解部分; 和(f)回收作为产物的冷却段流出气体和用于处理烃气体的装置。
    • 89. 发明授权
    • Method and means for controlling mist scrubber operation
    • 用于控制雾洗涤器操作的方法和装置
    • US4844874A
    • 1989-07-04
    • US119534
    • 1987-11-12
    • Egbert deVries
    • Egbert deVries
    • B01D47/05B01D53/34B01D53/48B01D53/72
    • B01D53/485B01D47/05B01D53/34B01D53/72
    • A control system is provided for a mist scrubbing process in which a gas containing odorous and acidic contaminants is cocurrently contacted in a reaction chamber with tiny droplets of an aqueous reagent to react with and destroy the contaminants. The reagent contains an oxidizing agent and a base and the process is controlled by measuring a property, typically pH, of spent spray liquid settling at the bottom of the chamber. That measurement is used to meter the flow rate of base into the system while at the same time the concentration of an acidic contaminant in the scrubbed gas stream leaving the reaction chamber is measured and that measurement is used to meter the injection rate of an oxidizing agent into the system.
    • 提供了一种用于雾气洗涤过程的控制系统,其中含有恶臭和酸性污染物的气体在反应室中与微量的水性试剂微滴并流接触以与污染物反应并破坏污染物。 试剂含有氧化剂和碱,并且通过测量在室底部沉降的废喷雾液体的性质(通常为pH)来控制该方法。 该测量用于测量基底进入系统的流速,同时测量离开反应室的洗涤气流中的酸性污染物的浓度,并且测量用于测量氧化剂的注射速率 进入系统。