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1.发明授权公开(公告)号：US06187987B1
公开(公告)日：2001-02-13
申请号：US09126256
申请日：1998-07-30
申请人： Arthur A. Chin , Bryan M. Knickerbocker , Jeffrey C. Trewella , Terry R. Waldron , Lloyd S. White
发明人： Arthur A. Chin , Bryan M. Knickerbocker , Jeffrey C. Trewella , Terry R. Waldron , Lloyd S. White
IPC分类号： C07C7144
摘要： Permselective separation of aromatic hydrocarbons from non-aromatic hydrocarbons in a feed stream is accomplished using improved asymmetric membranes. The preferred membranes are fashioned from a polyimide and conditioned with a lubricating oil. Feed streams containing a mixture of aromatic and non-aromatic hydrocarbons are contacted with the dense active layer side of the polyimide membrane under a pressure and temperature sufficient to selectively permeate the desired aromatic hydrocarbon.
摘要翻译： 使用改进的不对称膜可以在进料流中选择性分离芳烃与非芳烃。 优选的膜由聚酰亚胺制成并用润滑油调理。 含有芳烃和非芳烃的混合物的进料流在聚酰亚胺膜的致密活性层侧在足以选择性渗透所需芳族烃的压力和温度下接触。
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公开(公告)号：US5414172A
公开(公告)日：1995-05-09
申请号：US184902
申请日：1994-01-21
CPC分类号： C10G59/02
摘要： A process for upgrading low octane naphthas to produce gasoline products with low levels of benzene and aromatics while retaining a high pool octane uses a paraffinic naphtha reformer feed which is dehexanized to provide a C.sub.7 + fraction which is fed to the reformer and a C.sub.6 fraction which is fed together with the C.sub.6 fraction from the reformer effluent to a catalytic upgrading step where the low octane components from the naphtha and the benzene from the reformate are converted to a low benzene, high octane gasoline by alkylation of the benzene and other aromatics present in the reformate. The process has the advantage that benzene make in the reformer is reduced by the partial by-passing of the C.sub.6 benzene precursors around the reformer; in addition, improved benzene alkylation results from the presence of additional light olefins generated by the cracking of paraffins from the paraffinic naphtha. the reaction is preferably carried out in a turbulent fluidized bed reaction zone.
摘要翻译： 一种用于升级低辛烷值的石脑油以生产具有低含量苯和芳族化合物的汽油产品同时保留高残留辛烷值的方法使用石蜡石脑油重整器原料，该进料被脱脂以提供进料至重整器的C 7+馏分， 与来自重整器流出物的C6馏分一起进料到催化升级步骤，其中来自石脑油的低辛烷值成分和来自重整产物的苯通过苯和其它芳族化合物的烷基化转化为低苯，高辛烷值汽油 重组。 该方法的优点是在重整器周围的C6苯前体的部分旁路减少了重整器中的苯; 此外，改进的苯烷基化是由于由链烷烃石脑油裂解石蜡产生的另外的轻质烯烃的存在。 该反应优选在湍流流化床反应区中进行。
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公开(公告)号：US4986897A
公开(公告)日：1991-01-22
申请号：US458054
申请日：1989-12-28
申请人： Arthur A. Chin
发明人： Arthur A. Chin
CPC分类号： C10G11/182 , B01D53/8628
摘要： Oxides of nitrogen (NO.sub.x) emissions are catalytically reduced by contacting a flue gas containing NO.sub.x with ammonia or an ammonia precursor in the presence of a catalyst effective for promoting the reduction of NO.sub.x with ammonia in oxidizing atmospheres, such as those in FCC catalyst regenerators. Bismuth oxides on a support are the preferred NO.sub.x reduction catalyst. The process is especially useful in reducing NO.sub.x emissions from fluidized catalytic cracking units.
摘要翻译： 在催化剂存在下，使含有NO x的烟道气与氨或氨前体接触，可有效地促进氮氧化物（NOx）的排放，该催化剂有助于在氧化性气氛（如FCC催化剂再生器）中促进还原NOx。 载体上的氧化铋是优选的NOx还原催化剂。 该方法在减少来自流化催化裂化装置的NOx排放方面特别有用。
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公开(公告)号：US4986896A
公开(公告)日：1991-01-22
申请号：US337685
申请日：1989-04-13
申请人： Amos A. Avidan , Arthur A. Chin
发明人： Amos A. Avidan , Arthur A. Chin
IPC分类号： C10G11/05
CPC分类号： C10G11/05 , Y10S502/521
摘要： A known method for passivating contaminant metals on an FCC catalyst comprises treating the catalyst with a sufficient amount of a sulfur-containing compound capable of associating with the contaminant metals when in contact therewith. An improvement comprises contacting the catalyst with the sulfur-containing compound for at least 3 seconds. In another embodiment of the invention, the improvement comprises contacting the catalyst with the sulfur-containing compound in a separate treatment vessel.
摘要翻译： 用于在FCC催化剂上钝化污染金属的已知方法包括用足够量的与污染金属缔合的含硫化合物处理催化剂。 改进之处在于使催化剂与含硫化合物接触至少3秒钟。 在本发明的另一个实施方案中，改进包括在单独的处理容器中使催化剂与含硫化合物接触。
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公开(公告)号：US5055029A
公开(公告)日：1991-10-08
申请号：US660913
申请日：1991-02-27
申请人： Amos A. Avidan , Arthur A. Chin , Gary J. Green
发明人： Amos A. Avidan , Arthur A. Chin , Gary J. Green
IPC分类号： F23C10/10
CPC分类号： F23C10/10 , F23C2206/101 , F23C2206/103 , F23G2203/501 , F23G2209/12
摘要： A circulating fluid bed combustion (CFBC) unit, which burns a carbon and nitrogen containing fuel to produce heat and flue gas comprising NO.sub.x, operates with reduced emissions of NO.sub.x from the flue gas by adding to the circulating fluid bed a catalytically effective amount of a DeNO.sub.x catalyst, such as bismuth oxide on a silica/alumina support. The DeNO.sub.x catalyst may circulate freely with the circulating inventory of particulates in the CFB, or can be disposed on a heavier particle which "slips" and has an extended residence time in the combustion zone where the carbonaceous fuel is burned. A CO combustion promoter, such as Pt on silica/alumina may also be present.
摘要翻译： 燃烧含碳和氮的燃料以产生包含NOx的烟气的循环流化床燃烧（CFBC）单元通过向循环流化床中减少催化有效量的 DeNOx催化剂，例如二氧化硅/氧化铝载体上的氧化铋。 DeNOx催化剂可以与CFB中的颗粒的循环库存自由循环，或者可以放置在较重的颗粒上，该颗粒“滑倒”并且在碳燃料燃烧的燃烧区域具有延长的停留时间。 还可以存在CO燃烧促进剂，例如二氧化硅/氧化铝上的Pt。
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公开(公告)号：US5021146A
公开(公告)日：1991-06-04
申请号：US458004
申请日：1989-12-28
申请人： Arthur A. Chin
发明人： Arthur A. Chin
CPC分类号： C10G11/05
摘要： A process for regeneration of cracking catalyst while minimizing NO.sub.x emissions is disclosed. A Group IIIB based DeNO.sub.x additive is present in an amount and in a form which reduces NO.sub.x emissions. Relatively small amounts of lanthanum or yttrium oxides, or lanthanum titanate, preferably impregnated on a separate support are effective to reduce NO.sub.x produced in the regenerator. The additive converts NO.sub.x to nitrogen even when Pt CO combustion promoter and some excess oxygen are present in the regenerator.
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公开(公告)号：US4889615A
公开(公告)日：1989-12-26
申请号：US280451
申请日：1988-12-06
IPC分类号： C10G11/02
CPC分类号： C10G11/02 , Y10S502/521
摘要： A catalytic cracking process especially useful for the catalytic cracking of high metals content feeds including resids in which the feed is cracked in the presence of a catalyst additive comprising a dehydrated magnesium-aluminum hydrotalcite which acts as a trap for vanadium as well as an agent for reducing the content of sulfur oxides in the regenerator flue gas. The additive is used in the form of a separate additive from the cracking catalyst particles in order to keep the vanadium away from the cracking catalyst and so preserve the activity of the catalyst.
摘要翻译： 一种特别适用于高金属含量进料的催化裂化的催化裂化方法，包括在催化剂添加剂存在下进料裂化的残渣，该催化剂添加剂包含作为钒陷阱的脱水镁 - 铝水滑石，以及用于 降低再生器烟道气中硫氧化物的含量。 添加剂以与裂化催化剂颗粒分开的添加剂的形式使用，以使钒远离裂化催化剂，因此保持催化剂的活性。
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公开(公告)号：US5057205A
公开(公告)日：1991-10-15
申请号：US204834
申请日：1988-06-10
申请人： Arthur A. Chin , Ajit V. Sapre , Michael S. Sarli
发明人： Arthur A. Chin , Ajit V. Sapre , Michael S. Sarli
IPC分类号： C10G11/18
CPC分类号： C10G11/18 , Y10S502/521
摘要： A catalytic cracking process especially useful for the catalytic cracking of high metals content feeds including resids in which the feed is cracked in the presence of a catalyst additive comprising an alkaline earth metal oxide and an alkaline earth metal spinel, preferably a magnesium aluminate spinel which acts as a trap for vanadium as well as an agent for reducing the content of sulfur oxides in the regenerator flue gas. The additive is used in the form of a separate additive from the cracking catalyst particles in order to keep the vanadium away from the cracking catalyst and so preserve the activity of the catalyst; in addition, use of separate additive particles permits the makeup rate for the additive to be varied relative to that of the cracking catalyst in order to deal with variations in the metals and sulfur content of the cracking feed. The additive may be separated from the cracking catalyst by physical classification so that it can be separately withdrawn from the unit for better control of the catalyst/additive ratio. The additive may be injected into the unit separate from the cracking catalyst so that it contacts the feed first to effect a preliminary demetallation.
摘要翻译： 催化裂解方法特别适用于高金属含量进料的催化裂化，包括在催化剂添加剂存在下进料裂化的残渣，所述催化剂添加剂包含碱土金属氧化物和碱土金属尖晶石，优选铝酸镁尖晶石，其作用 作为钒的捕集剂以及用于降低再生器烟道气中的硫氧化物含量的试剂。 添加剂以与裂化催化剂颗粒不同的添加剂的形式使用，以使钒远离裂化催化剂，因此保持催化剂的活性; 此外，使用单独的添加剂颗粒允许添加剂的补充比率相对于裂化催化剂的补充速率变化，以便处理裂化原料的金属和硫含量的变化。 添加剂可以通过物理分级与裂化催化剂分离，从而可以单独从单元中取出，以更好地控制催化剂/添加剂比例。 可以将添加剂注入到与裂化催化剂分离的单元中，使得其首先接触进料以进行初步脱金属。
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公开(公告)号：US5002654A
公开(公告)日：1991-03-26
申请号：US458000
申请日：1989-12-28
申请人： Arthur A. Chin
发明人： Arthur A. Chin
CPC分类号： B01D53/8628 , B01J29/90 , C10G11/182
摘要： A process for regeneration of cracking catalyst while minimizing NO.sub.x emissions is disclosed. A zinc-based DeNO.sub.x catalyst is present in an amount and in a form which reduces NO.sub.x emissions. Relatively small amounts of zinc oxides impregnated on a separate support having little or no cracking activity are preferred. The zinc NO.sub.x reduction catalyst can be a separate particle additive, or can be made in situ by adding a solution or dispersion of zinc or a compound thereof to the cracking unit, or to the hydrocarbon feed to the cracking unit.
摘要翻译： 公开了一种在最小化NOx排放的同时再生裂化催化剂的方法。 锌基脱硝催化剂以减少NOx排放的量和形式存在。 浸渍在具有很小或没有裂化活性的单独载体上的相对少量的氧化锌是优选的。 锌还原催化剂可以是单独的颗粒添加剂，或者可以通过将锌或其化合物的溶液或分散体加入到裂化装置中，或者通过向裂化装置的烃进料中原位制备。
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公开(公告)号：US5434327A
公开(公告)日：1995-07-18
申请号：US953402
申请日：1992-09-29
申请人： Arthur A. Chin , Stephen S. F. Wong
发明人： Arthur A. Chin , Stephen S. F. Wong
CPC分类号： C07C41/06 , C07C2/12 , C07C2529/65 , C07C2529/70
摘要： Hexenes are produced when propylene is catalytically converted under moderate conditions over chosen small pore zeolite catalysts having small 10-membered ring openings. These chosen catalysts are ZSM-22, ZSM-23, ZSM-35, and ZSM-48. They are unexpectedly effective to dimerize a substantially ethylene-free propylene-rich stream to form mainly hexene isomers, a major portion of which isomers are tert-isohexenes, without making a substantial amount of trimer or other byproducts. The feed is preferably at least 60% by weight, the remainder being alkanes, mainly propane, and the olefins being limited to less than 5 mol % ethylene and less than 5 mol %, preferably less than 2 mol %, of C.sub.4.sup.=+ (mainly butenes). Because propane in the feed is essentially unaffected, plural reactors in series may be used to avoid recycling unreacted propylene with propane to the dimerization reactor. The reactors thus allow using a mixed propylene-propane stream without need for a superfractionator to make the desired separation. Etherification is effective because of the high tert-isohexene content of the dimer product. Non-tertiary hexenes from the etherification reactor may be recycled to the dimerization reactor to benefit from the ability of the chosen catalyst to isomerize the non-tert-hexenes to tert-isohexenes on a substantially mol for mol basis without making other products typically in equilibrium in the isomerized effluent of other zeolite catalysts such as ZSM-5.
摘要翻译： 当丙烯在中等条件下催化转化为选择的具有小的10元环开口的小孔沸石催化剂时，产生己烯。 这些选择的催化剂是ZSM-22，ZSM-23，ZSM-35和ZSM-48。 它们意外地有效地使基本上不含乙烯的富丙烯流二聚形成主要的己烯异构体，其主要部分异构体是叔异己烯，而不产生大量的三聚体或其它副产物。 进料优选为至少60重量％，其余为烷烃，主要为丙烷，烯烃限于小于5摩尔％乙烯和小于5摩尔％，优选小于2摩尔％的C4 = +（ 主要是丁烯）。 由于进料中的丙烷基本上不受影响，可以使用串联的多个反应器以避免将未反应的丙烯与丙烷循环到二聚反应器。 因此，反应器允许使用混合的丙烯 - 丙烷流，而不需要超分级机来进行所需的分离。 醚化是有效的，因为二聚体产物的高的叔己烯含量高。 来自醚化反应器的非叔己烯可以再循环到二聚反应器中以受益于所选择的催化剂以基本上摩尔数摩尔基准将非叔己烯异构化为叔异己烯的能力，而不使其它产物通常处于平衡状态 在其它沸石催化剂如ZSM-5的异构化流出物中。
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