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公开(公告)号:US07914666B1
公开(公告)日:2011-03-29
申请号:US11540175
申请日:2006-09-29
申请人: Robert Mehlberg , Frank Rosser, Jr. , Zhihao Fei , Carl Stevens
发明人: Robert Mehlberg , Frank Rosser, Jr. , Zhihao Fei , Carl Stevens
IPC分类号: C10G11/18
CPC分类号: C10G11/182
摘要: An FCC process producing lower NOx emissions during regeneration by using excess oxygen levels at less than or equal to about 0.5 mol-% and a plenum temperature above about 730° C. (about 1350° F.). The process may further include limiting the Pt content in the catalyst to less than or equal to about 0.5 ppm. NOx emissions, NO to NO2, produced through this process may be equal to or less than 25 ppmv. The process may also include adjusting the metal content of the feedstock for such metals as antimony, nickel, or vanadium. Additional variables for reducing NOx emissions that may be used in conjunction with this process may include increasing the flue gas residence time, injecting NH3 into the flue gas, adding or using NOx-reducing catalysts, increasing stripping of the catalyst, and increasing the catalyst zeolite to matrix ratio.
摘要翻译: FCC方法在再生期间通过使用小于或等于约0.5mol%的过量氧气浓度和高于约730℃(1350°F)的增压室产生较低的NOx排放。 该方法还可以包括将催化剂中的Pt含量限制为小于或等于约0.5ppm。 通过该过程产生的NOx排放NO,NO2可以等于或小于25ppmv。 该方法还可以包括调整诸如锑,镍或钒等金属的原料的金属含量。 用于减少可能与该方法结合使用的NOx排放的附加变量可包括增加烟道气停留时间,将NH 3注入烟道气中,添加或使用NOx还原催化剂,增加催化剂的汽提和增加催化剂沸石 到矩阵比。
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公开(公告)号:US09328293B2
公开(公告)日:2016-05-03
申请号:US13564249
申请日:2012-08-01
CPC分类号: C10G11/18 , C10G2300/1044 , C10G2300/1088 , C10G2300/301 , C10G2400/02 , C10G2400/20
摘要: One exemplary embodiment can be a fluid catalytic cracking process. The process can include a reaction zone operating at conditions to facilitate olefin production and including at least one riser. The at least one riser can receive a first feed having a boiling point of about 180° to about 800° C., and a second feed having more than about 70%, by weight, of one or more C4+ olefins.
摘要翻译: 一个示例性实施方案可以是流化催化裂化方法。 该方法可以包括在促进烯烃生产并且包括至少一个提升管的条件下操作的反应区。 所述至少一个提升管可以接收沸点为约180℃至约800℃的第一进料,以及具有大于约70重量%的一种或多种C 4 +烯烃的第二进料。
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公开(公告)号:US09238600B2
公开(公告)日:2016-01-19
申请号:US13325292
申请日:2011-12-14
申请人: David A. Wegerer , Brian W. Hedrick , Zhihao Fei , Daniel N. Myers , Vincenza Myers , Paolo Palmas , Laura E. Leonard
发明人: David A. Wegerer , Brian W. Hedrick , Zhihao Fei , Daniel N. Myers , Paolo Palmas , Laura E. Leonard
CPC分类号: C07C4/06 , C07C2521/04 , C07C2521/08 , C07C2521/16 , C07C2529/40 , C07C2529/50 , C07C2529/65 , C10G11/05 , C10G11/18 , C10G51/026 , C10G2400/20 , Y02P20/52 , Y02P20/584 , C07C11/04 , C07C11/06
摘要: A process for improving the yield of ethylene and propylene from a light naphtha feedstock includes obtaining light naphtha feedstock from a primary cracking zone having a cracking catalyst. The light naphtha feedstock is contacted with an olefin catalyst in an olefin producing zone to produce an ethylene- and propylene-rich stream. After reacting with the olefin catalyst, the ethylene- and propylene-rich stream is separated from the olefin catalyst from in a separator zone. At least a portion of the olefin catalyst is regenerated by combusting coke deposited on a surface of the olefin catalyst in an oxygen-containing environment, and at least a portion of the olefin catalyst is heated. These portions could be the same one or they could be different. In some embodiments, at least a portion of the olefin catalyst could be neither regenerated nor heated. The olefin catalyst is returned to the olefin producing zone.
摘要翻译: 从轻石脑油原料提高乙烯和丙烯的产率的方法包括从具有裂化催化剂的一次裂解区获得轻质石脑油原料。 轻质石脑油原料与烯烃生产区中的烯烃催化剂接触以产生富含乙烯和丙烯的料流。 在与烯烃催化剂反应后,将乙烯和富丙烯物流从分离器区域与烯烃催化剂分离。 至少一部分烯烃催化剂通过在含氧环境中燃烧沉积在烯烃催化剂的表面上的焦炭再生,至少部分烯烃催化剂被加热。 这些部分可以是相同的,也可以是不同的。 在一些实施方案中,烯烃催化剂的至少一部分既不能再生也不能加热。 将烯烃催化剂返回到烯烃生产区。
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公开(公告)号:US08246914B2
公开(公告)日:2012-08-21
申请号:US12340945
申请日:2008-12-22
CPC分类号: C10G11/18 , C10G2300/1044 , C10G2300/1088 , C10G2300/301 , C10G2400/02 , C10G2400/20
摘要: One exemplary embodiment can be a fluid catalytic cracking system. The system can include a reaction zone operating at conditions to facilitate olefin production and including at least one riser. The at least one riser can receive a first feed having a boiling point of about 180-about 800° C., and a second feed having more than about 70%, by weight, of one or more C4+ olefins.
摘要翻译: 一个示例性实施方案可以是流化催化裂化系统。 该系统可以包括在促进烯烃生产的条件下操作并包括至少一个提升管的反应区。 所述至少一个提升管可以接收沸点为约180-约800℃的第一进料,以及具有大于约70重量%的一种或多种C 4 +烯烃的第二进料。
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公开(公告)号:US20100158767A1
公开(公告)日:2010-06-24
申请号:US12340945
申请日:2008-12-22
IPC分类号: B01J8/24
CPC分类号: C10G11/18 , C10G2300/1044 , C10G2300/1088 , C10G2300/301 , C10G2400/02 , C10G2400/20
摘要: One exemplary embodiment can be a fluid catalytic cracking system. The system can include a reaction zone operating at conditions to facilitate olefin production and including at least one riser. The at least one riser can receive a first feed having a boiling point of about 180-about 800° C., and a second feed having more than about 70%, by weight, of one or more C4+ olefins.
摘要翻译: 一个示例性实施方案可以是流化催化裂化系统。 该系统可以包括在促进烯烃生产的条件下操作并包括至少一个提升管的反应区。 所述至少一个提升管可以接收沸点为约180-约800℃的第一进料,以及具有大于约70重量%的一种或多种C 4 +烯烃的第二进料。
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公开(公告)号:US20130158326A1
公开(公告)日:2013-06-20
申请号:US13325292
申请日:2011-12-14
申请人: David A. Wegerer , Brian W. Hedrick , Zhihao Fei , Paolo Palmas , Laura E. Leonard , Vincenza Myers
发明人: David A. Wegerer , Brian W. Hedrick , Zhihao Fei , Daniel N. Myers , Paolo Palmas , Laura E. Leonard
CPC分类号: C07C4/06 , C07C2521/04 , C07C2521/08 , C07C2521/16 , C07C2529/40 , C07C2529/50 , C07C2529/65 , C10G11/05 , C10G11/18 , C10G51/026 , C10G2400/20 , Y02P20/52 , Y02P20/584 , C07C11/04 , C07C11/06
摘要: A process for improving the yield of ethylene and propylene from a light naphtha feedstock includes obtaining light naphtha feedstock from a primary cracking zone having a cracking catalyst. The light naphtha feedstock is contacted with an olefin catalyst in an olefin producing zone to produce an ethylene- and propylene-rich stream. After reacting with the olefin catalyst, the ethylene- and propylene-rich stream is separated from the olefin catalyst from in a separator zone. At least a portion of the olefin catalyst is regenerated by combusting coke deposited on a surface of the olefin catalyst in an oxygen-containing environment, and at least a portion of the olefin catalyst is heated. These portions could be the same one or they could be different. In some embodiments, at least a portion of the olefin catalyst could be neither regenerated nor heated. The olefin catalyst is returned to the olefin producing zone.
摘要翻译: 从轻石脑油原料提高乙烯和丙烯的产率的方法包括从具有裂化催化剂的一次裂解区获得轻质石脑油原料。 轻质石脑油原料与烯烃生产区中的烯烃催化剂接触以产生富含乙烯和丙烯的料流。 在与烯烃催化剂反应后,将乙烯和富丙烯物流从分离器区域与烯烃催化剂分离。 至少一部分烯烃催化剂通过在含氧环境中燃烧沉积在烯烃催化剂的表面上的焦炭再生,至少部分烯烃催化剂被加热。 这些部分可以是相同的,也可以是不同的。 在一些实施方案中,烯烃催化剂的至少一部分既不能再生也不能加热。 将烯烃催化剂返回到烯烃生产区。
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公开(公告)号:US20120296146A1
公开(公告)日:2012-11-22
申请号:US13564249
申请日:2012-08-01
IPC分类号: C07C4/06
CPC分类号: C10G11/18 , C10G2300/1044 , C10G2300/1088 , C10G2300/301 , C10G2400/02 , C10G2400/20
摘要: One exemplary embodiment can be a fluid catalytic cracking process. The process can include a reaction zone operating at conditions to facilitate olefin production and including at least one riser. The at least one riser can receive a first feed having a boiling point of about 180° to about 800° C., and a second feed having more than about 70%, by weight, of one or more C4+ olefins.
摘要翻译: 一个示例性实施方案可以是流化催化裂化方法。 该方法可以包括在促进烯烃生产并且包括至少一个提升管的条件下操作的反应区。 所述至少一个提升管可以接收沸点为约180℃至约800℃的第一进料,以及具有大于约70重量%的一种或多种C 4 +烯烃的第二进料。
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