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公开(公告)号：US5538623A
公开(公告)日：1996-07-23
申请号：US168355
申请日：1993-12-17
CPC分类号： C10G11/18
摘要： An FCC process and apparatus operates with closed reactor cyclones and a catalyst stripper using H2 or recycled stripper vapor for stripping gas. Preferably stripper vapor is removed, cooled and condensed, and some vapor recycled to the stripper. Isolation of the stripper from the cracked product vapors permits use of large amounts of stripping steam, or stripping gases such as hydrogen.
摘要翻译： FCC方法和装置用闭式反应器旋风分离器和使用H 2或循环汽提塔蒸气的催化剂汽提塔进行汽提。 优选汽提蒸汽被去除，冷却和冷凝，并且一些蒸汽再循环到汽提塔。 从裂化产物蒸汽中分离汽提塔允许使用大量的汽提蒸汽或汽提气体如氢气。
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公开(公告)号：US5320740A
公开(公告)日：1994-06-14
申请号：US1881
申请日：1993-01-08
申请人： Diane V. Jorgensen , Ajit V. Sapre
发明人： Diane V. Jorgensen , Ajit V. Sapre
CPC分类号： C10G11/18
摘要： Catalyst stripping in the fluid catalytic cracking process is improved by cooling the spent catalyst to quench catalytic condensation reactions, then stripping the cooled catalyst in a primary stripper, followed by heating and a stage of hot stripping. Quenched stripping reduces coke make by reducing conversion of light olefins, made during the FCC process, into coke.
摘要翻译： 通过冷却废催化剂以淬灭催化缩合反应，然后在初级汽提器中汽提冷却的催化剂，然后加热和热汽提阶段，可以提高流化催化裂化过程中的催化剂汽提。 淬火汽提通过将FCC过程中制成的轻质烯烃转化为焦炭来减少焦炭生成。
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3.发明授权
公开(公告)号：US5053573A
公开(公告)日：1991-10-01
申请号：US583273
申请日：1990-09-14
申请人： Diane V. Jorgensen , Ajit V. Sapre
发明人： Diane V. Jorgensen , Ajit V. Sapre
CPC分类号： C10G29/205 , C10G59/02 , C10G63/00 , Y10S585/904 , Y10S585/91
摘要： Conversion of benzene to heavier aromatics by contact with alkyl polynucleararomatics, preferably FCC heavy cycle oil, in the presence of an alkylation/transalkylation catalyst is disclosed. Efficient conversion of relatively dilute benzene in reformate is possible. Use of alkyl polynucleararomatics as a source of alkyl groups, with reduced use of monocyclic alkyl aromatics, permits robust reaction conditions to be used without a net formation of benzene by dealkylation. The process preferably uses a solid zeolite based acidic catalyst disposed in a fixed, moving or fluid bed reactor. Preferred catalysts comprise MCM-22 or ZSM-5.
摘要翻译： 公开了在烷基化/烷基转移催化剂存在下，通过与烷基多核芳烃（优选FCC重循环油）接触将苯转化成较重芳族化合物。 相对稀释的苯在重整产品中的有效转化是可能的。 使用烷基多核芳烃作为烷基的来源，减少使用单环烷基芳族化合物，允许使用稳定的反应条件，而无需通过脱烷基形成苯。 该方法优选使用设置在固定，移动或流化床反应器中的固体沸石基酸性催化剂。 优选的催化剂包括MCM-22或ZSM-5。
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公开(公告)号：US4714537A
公开(公告)日：1987-12-22
申请号：US873661
申请日：1986-06-11
摘要： A process is described which improves the performance of cyclic dewaxing/regeneration processes using a catalyst comprising palladium and a zeolite having the structure of Zeolite Beta. The cyclic process includes regenerating the catalyst by oxidation alone or combinations of oxidation and reduction to substantially restore catalyst activity.
摘要翻译： 描述了使用包含具有沸石β结构的钯和沸石的催化剂改进循环脱蜡/再生方法的性能的方法。 循环过程包括通过单独氧化或氧化和还原的组合再生催化剂以基本恢复催化剂活性。
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公开(公告)号：US5082983A
公开(公告)日：1992-01-21
申请号：US583266
申请日：1990-09-14
IPC分类号： C10G11/18
CPC分类号： C10G11/18 , Y10S585/94
摘要： A process for reducing the benzene content of a reformate stream in a conventional catalytic cracking reactor wherein a heavy hydrocarbon feed is cracked to lighter products by contact with a supply of hot regenerated cracking catalyst is disclosed. The reformate can be mixed with the heavy feed to the cracking reactor, but preferably reformate contacts hot regenerated cracking catalyst before the heavy feed is added. Benzene content is reduced by alkylation with reactive fragments created in the cracking reactor, or by transalkylation with alkyl aromatics. Benzene removal can be enhanced by adding a light reactive gas such as ethylene to the cracking reactor, by adding heavier aromatics, such as a light cycle oil, or both. The reaction is preferably conducted in an FCC riser reactor, but may be conducted in a moving bed cracking reactor.
摘要翻译： 公开了一种在常规催化裂化反应器中降低重整产物流中苯含量的方法，其中重烃进料通过与热再生裂化催化剂的供应接触而裂化成较轻的产物。 可以将重整油与重质进料混合到裂化反应器中，但是在加入重质进料之前优选重结晶接触热再生裂化催化剂。 通过在裂解反应器中产生的反应性碎片进行烷基化或通过与烷基芳族化合物烷基转移来降低苯含量。 通过加入较重的芳族化合物（如轻质循环油）或两者，可以通过向裂化反应器中加入轻质反应性气体如乙烯来提高苯的去除能力。 反应优选在FCC提升管反应器中进行，但可以在移动床裂解反应器中进行。
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