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1.发明授权Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the same 失效分级金属促进沸石催化剂和使用其的催化还原氮氧化物的方法
公开(公告)号：US5024981A
公开(公告)日：1991-06-18
申请号：US340992
申请日：1989-04-20
IPC分类号： B01D53/94 , B01J29/06 , B01J29/072 , B01J29/80
CPC分类号： B01J35/0006 , B01D53/9418 , B01J29/072 , B01J29/24 , B01J29/7615 , B01J37/0246 , B01D2251/2062 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , Y02C20/10
摘要： A zeolite catalyst composition is provided in which a first or upstream zone of the catalyst has a lower metal (e.g., iron or copper) promoter loading than the metal promoter loading of the second or downstream zone of the catalyst. The first zone may contain from none up to about 1 percent by weight of the promoter and the second zone may contain from about 1 to 30 percent by weight promoter. The zeolite may be any suitable zeolite, especially one having a silica-to-alumina ratio of about 10 or more, and a kinetic pore size of about 7 to about 8 Angstroms with such pores being interconnected in all three crystallographic dimensions. The method of the invention provides for passing a gaseous stream containing oxygen, nitrogen oxides and ammonia sequentially through first and second catalysts as described above, the first catalyst favoring reduction of nitrogen oxides and the second catalyst favoring the oxidation or other decomposition of excess ammonia.
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2.发明授权Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the same 失效分级金属促进沸石催化剂和使用其的催化还原氮氧化物的方法
公开(公告)号：US5516497A
公开(公告)日：1996-05-14
申请号：US678777
申请日：1991-04-01
CPC分类号： B01J35/0006 , B01D53/9418 , B01J29/072 , B01J29/24 , B01J29/7615 , B01J37/0246 , B01D2251/2062 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , Y02C20/10
摘要： A zeolite catalyst composition is provided in which a first or upstream zone of the catalyst has a lower metal (e.g., iron or copper) promoter loading than the metal promoter moter loading of the second or downstream zone of the catalyst. The first zone may contain from none up to about 1 percent by weight of the promoter and the second zone may contain from about 1 to 30 percent by weight promoter. The zeolite may be any suitable zeolite, especially one having a silica-to-alumina ratio of about 10 or more, and a kinetic pore size of about 7 to about 8 Angstroms with such pores being interconnected in all three crystallographic dimensions. The method of the invention provides for passing a gaseous stream containing oxygen, nitrogen oxides and ammonia sequentially through first and second catalysts as described above, the first catalyst favoring reduction of nitrogen oxides and the second catalyst favoring the oxidation or other decomposition of excess ammonia.
摘要翻译： 提供了一种沸石催化剂组合物，其中催化剂的第一或上游区域具有比催化剂的第二或下游区域的金属促进剂载体负载更低的金属（例如铁或铜）载体负载。 第一区域可以含有至多约1重量％的启动子，第二区域可以含有约1至30重量％的促进剂。 沸石可以是任何合适的沸石，特别是二氧化硅与氧化铝之比约为10或更大的沸石，动力学孔径约7至约8埃，其中这些孔在所有三个晶体尺寸上相互连接。 本发明的方法提供了使含有氧，氮氧化物和氨的气流顺序地通过如上所述的第一和第二催化剂，第一催化剂有利于还原氮氧化物，第二催化剂有利于过量氨的氧化或其它分解。
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3.发明授权Fluid catalytic cracking catalyst for cracking sulfur containing petroleum feedstocks and a process for using it 失效用于裂解含硫石油原料的流化催化裂化催化剂及其使用方法
公开(公告)号：US4606813A
公开(公告)日：1986-08-19
申请号：US730111
申请日：1985-05-03
申请人： John W. Byrne , Barry K. Speronello
发明人： John W. Byrne , Barry K. Speronello
CPC分类号： C10G11/05 , B01J29/084 , B01J35/002
摘要： The present invention is directed to a fluid catalytic cracking catalyst comprising a blend of a catalytically active first component and a second component for reducing the emissions of oxides of sulfur from the regenerator of a catalytic cracking unit and the use of that catalyst to crack sulfur containing petroleum feedstocks. The catalytically active first component contains Y-faujasite zeolite and comprises about 10-70% by weight, preferably about 25-50% by weight, of the catalyst. The second component of the catalyst comprises about 30-90% by weight, preferably about 50-75% by weight, of the catalyst. The second component comprises fluidizable particles containing at least about 70% by weight, preferably at least about 90% by weight, alumina and having an equilibrium surface area in the range of about 40-100 m.sup.2 /g., preferably in the range of about 50-90 m.sup.2 /g.
摘要翻译： 本发明涉及一种流化催化裂化催化剂，其包含催化活性的第一组分和第二组分的共混物，用于减少来自催化裂化装置的再生器的硫的氧化物的排放，以及使用该催化剂来裂解含硫 石油原料。 催化活性的第一组分含有Y-八面沸石沸石，并且占催化剂的约10-70重量％，优选约25-50重量％。 催化剂的第二组分包含约30-90重量％，优选约50-75重量％的催化剂。 第二组分包含含有至少约70重量％，优选至少约90重量％的氧化铝的可流化颗粒，其平衡表面积在约40-100m 2 / g的范围内，优选在约 50-90平方米/克。
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公开(公告)号：US4325817A
公开(公告)日：1982-04-20
申请号：US172333
申请日：1980-07-25
申请人： David B. Bartholic , John W. Byrne
发明人： David B. Bartholic , John W. Byrne
CPC分类号： C10G11/187 , B01D53/8609 , B01J29/90 , C10G11/18 , Y10S502/517
摘要： A system is described for control of sulfur oxide in emissions to the atmosphere from the combined flue gases of selective vaporization and FCC cracking of the improved charge stock resulting from selective vaporization. The invention provides for reduction in sulfur oxide content of the waste gases from the FCC regenerator and the selective vaporization burner and adds a new controllable variable for a heat balanced FCC Unit. The cracking catalyst used has the capability of reversibly reacting with sulfur oxides in the combined flue gases to carry the sulfur back into the reactor where it is converted, at least in part, to hydrogen sulfide which is removed from reaction products in the normal course of treating the cracked products from the reactor. By the disclosed system, the blend of flue gas is cooled and then contacted with hot regenerated catalyst from the regenerator for sorption of sulfur oxides by the catalyst and to cool the catalyst for control of reaction parameters in the FCC reactor.
摘要翻译： 描述了一种系统，用于控制从选择性蒸发导致的改进的电荷原料的选择性蒸发和FCC裂解的组合烟道气向大气排放的硫氧化物。 本发明提供了来自FCC再生器和选择性气化燃烧器的废气的硫氧化物含量的降低，并为热平衡FCC单元增加了新的可控变量。 所使用的裂化催化剂具有与组合的烟道气中的硫氧化物可逆地反应的能力，以将硫运送到反应器中，其中至少部分地将硫转化成硫化氢，该硫化氢在正常过程中从反应产物中除去 处理来自反应器的裂化产物。 通过所公开的系统，将烟气的混合物冷却，然后与来自再生器的热再生催化剂接触，以便通过催化剂吸附硫氧化物，并冷却催化剂以控制FCC反应器中的反应参数。
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5.发明授权Method for reduction of nitrogen oxides with ammonia using promoted zeolite catalysts 失效使用促进的沸石催化剂用氨还原氮氧化物的方法
公开(公告)号：US4961917A
公开(公告)日：1990-10-09
申请号：US341405
申请日：1989-04-20
申请人： John W. Byrne
发明人： John W. Byrne
IPC分类号： B01D53/94 , B01J29/06 , B01J29/072 , B01J29/10 , B01J29/72
CPC分类号： B01J29/072 , B01D53/9418 , B01D2251/2062 , B01D2255/20738 , B01D2255/20761 , B01D2255/50
摘要： A method in accordance with the invention comprises passing through a zeolite catalyst as described below, a gaseous stream containing nitrogen oxides, ammonia and oxygen to selectively catalyze the reduction of nitrogen oxides and, if excess or unreacted ammonia is present, to oxidize the excess of unreacted ammonia with oxygen to hydrogen and water. The method includes the use of a zeolite catalyst composition which comprises a metal (e.g., iron or copper) promoted zeolite, the zeolite being characterized by having a silica to alumina ratio of at least about 10 and a pore structure which is interconnected in all three crystallographic dimensions by pores having an average kinetic pore diameter of at least about 7 Angstroms. Promoted zeolites of the above type have demonstrated high tolerance for sulfur poisoning, good activity for the selective catalytic reduction of nitrogen oxides with ammonia, good activity for the oxidation of ammonia with oxygen, and the retention of such good activities even under high temperature operations, e.g., 400.degree. C. or higher, and hydrothermal conditions.
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公开(公告)号：US4839026A
公开(公告)日：1989-06-13
申请号：US750645
申请日：1985-06-28
申请人： Stanley M. Brown , John W. Byrne , Harry E. Jacobs
发明人： Stanley M. Brown , John W. Byrne , Harry E. Jacobs
摘要： Sulfur oxides are removed at least partially from the gaseous regenerator effluent of a fluid catalytic cracking unit operated with feedstock containing sulfur compounds and converted to hydrogen sulfide in the cracking zone by associating sulfur oxides in the gas with at least one rare earth compound, preferably cerium or a rare earth mixture rich in cerium, supported on discrete particles of alumina. The alumina particles may be a component of particles of a composite fluid cracking catalyst or separate fluidizable entities other than cracking catalyst and physically admixed with the catalyst particles.
摘要翻译： 至少部分地从与硫化合物原料一起运行的流化催化裂化装置的气体再生器流出物中除去硫氧化物，并通过将气体中的硫氧化物与至少一种稀土化合物，优选铈 或富含铈的稀土混合物，负载在离散的氧化铝颗粒上。 氧化铝颗粒可以是复合流体裂化催化剂的颗粒的组分或除裂化催化剂以外的单独的可流化实体，并与催化剂颗粒物理混合。
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公开(公告)号：US4384949A
公开(公告)日：1983-05-24
申请号：US257849
申请日：1981-04-27
摘要： Whole crude and residual fractions from distillation of petroleum and like feed stocks are subjected to selective vaporization to prepare heavy fractions of reduced Conradson Carbon and/or metals content by short-term, high temperature riser contact with a substantially inert solid contact material of low surface area in a selective vaporization zone. High boiling point components of the charge which are of high Conradson Carbon number and/or high metal content remain on the contact material as a combustible deposit which is then burned off in a combustion zone whereby the contact material is heated to a high temperature for return to the selective vaporization zone to supply the heat required therein. Equilibrium FCC catalyst, previously treated to reduce catalytic cracking activity and surface area, is used as the substantially inert solid.
摘要翻译： 对来自石油和类似原料的蒸馏的全部原油和残余馏分进行选择性蒸发以通过短期，高温提升管与低表面的基本惰性的固体接触材料接触来制备重量级的减少的康拉逊碳和/或金属含量 区域在选择性蒸发区。 具有高Conradson碳数和/或高金属含量的高电荷的高沸点组分保留在接触材料上作为可燃沉积物，然后在燃烧区中燃烧，从而将接触材料加热至高温以返回 到选择性蒸发区以供应其中所需的热量。 使用预先处理以降低催化裂化活性和表面积的平衡FCC催化剂作为基本惰性的固体。
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公开(公告)号：US06508863B1
公开(公告)日：2003-01-21
申请号：US09975720
申请日：2001-10-11
IPC分类号： B01D5304
CPC分类号： B01D53/0462 , B01D53/02 , B01D53/52 , B01D2253/108 , B01D2253/1085 , B01D2253/25 , B01D2253/308 , B01D2256/245 , B01D2257/702 , B01D2257/7022 , B01D2257/7027 , B01D2259/40056 , B01D2259/40064 , B01D2259/4009 , B01D2259/402 , B01D2259/403 , Y10S95/902
摘要： A process for adsorbing hydrocarbons from an acid gas stream includes passing the acid gas stream through an adsorbent that selectively removes hydrocarbons, desorbing the hydrocarbons from the adsorbent and contacting the desorbed hydrocarbons with an acid gas removal solution to remove acid gases which have been coadsorbed with the hydrocarbons. The process is particularly useful in removing hydrocarbons from a hydrogen sulfide-containing stream that is being directed to Claus processing for conversion into elemental sulfur. Useful adsorbents include Y-type zeolites having a silica to alumina mole ratio of less than 15 and a reduced sodium content.
摘要翻译： 从酸性气体流中吸附碳氢化合物的方法包括使酸性气体流通过吸附剂，该吸附剂选择性地除去烃，从吸附剂中解吸烃，并使解吸的烃与酸性气体去除溶液接触，以除去已经被共吸附的酸性气体 烃类。 该方法特别可用于从涉及克劳斯处理转化为元素硫的含硫化氢的物流中除去烃。 有用的吸附剂包括二氧化硅与氧化铝的摩尔比小于15的Y型沸石和钠含量降低。
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公开(公告)号：US4284494A
公开(公告)日：1981-08-18
申请号：US901346
申请日：1978-05-01
申请人： David B. Bartholic , John W. Byrne
发明人： David B. Bartholic , John W. Byrne
CPC分类号： C10G11/187 , B01D53/8609 , B01J29/90 , C10G11/18 , Y10S502/517
摘要： A system is described for control of sulfur oxide in emissions to the atmosphere from regenerators of Fluid Catalytic Cracking Units (FCC) in a manner which provides an added controllable variable in heat balanced units. The cracking catalyst used has the capability of reversibly reacting with sulfur oxides in the regenerator flue gas to carry the sulfur back into the reactor where it is converted, at least in part, to hydrogen sulfide which is removed from reaction products in the normal course of treating the cracked products from the reactor. By the disclosed system, regenerator flue gas is cooled and then contacted with hot regenerated catalyst from the regenerator for sorption of sulfur oxides by the catalyst and to cool the catalyst for control of reaction parameters in the FCC reactor.
摘要翻译： 描述了一种系统，用于控制硫氧化物以流体催化裂化装置（FCC）的再生器排放到大气中，其方式是在热平衡单元中提供增加的可控变量。 所使用的裂化催化剂具有与再生器烟道气中的硫氧化物可逆地反应的能力，以将硫带回到反应器中，其中至少部分地将硫化氢转化成硫化氢，该硫化氢在正常过程中从反应产物中除去 处理来自反应器的裂化产物。 通过所公开的系统，再生器烟气被冷却，然后与来自再生器的热再生催化剂接触，以通过催化剂吸附硫氧化物，并冷却催化剂以控制FCC反应器中的反应参数。
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