公开(公告)号：US5015611A

公开(公告)日：1991-05-14

申请号：US486533

申请日：1990-02-28

申请人： Danford E. Clark

发明人： Danford E. Clark

IPC分类号： B01J23/94 ,  B01J38/48 ,  C10G45/04

CPC分类号： B01J23/94 ,  B01J38/48 ,  C10G45/04 ,  Y10S502/517

摘要： A catalyst useful for promoting the conversion of organonitrogen and organosulfur compounds in a hydrocarbon-containing feedstock is regenerated in a method wherein a deactivated catalyst is contacted with a controlled amount of water prior to combustion of sulfur contaminants from the catalyst.

摘要翻译： 用于促进含烃原料中的有机硫和有机硫化合物的转化的催化剂以其中在催化剂燃烧硫污染物之前与失活的催化剂与受控量的水接触的方法再生。

公开(公告)号：US4604373A

公开(公告)日：1986-08-05

申请号：US644329

申请日：1984-08-24

申请人： Danford E. Clark

发明人： Danford E. Clark

IPC分类号： C10G47/16 ,  B01J29/12 ,  C10G47/18 ,  C10G65/12 ,  B01J29/10

CPC分类号： B01J29/126 ,  C10G47/18

摘要： A catalyst composition composed of a crystalline aluminosilicate Y zeolite, normally having a silica-to-alumina mole ratio of about 6.2 or above, in combination with a porous, inorganic refractory oxide. The Y zeolite contains ion-exchanged rare earth cations and ion-exchanged Group VIII noble metal cations. The combination of the zeolite and the refractory oxide contains between 4.5 weight percent and about 6.0 weight percent water. Such a catalyst containing the recited amount of water has been found to have consistently high activities when used as a catalyst in a hydrocracking process. The Y zeolites used as part of the catalyst are typically prepared by contacting an ammonium-exchanged Y zeolite with an aqueous solution of ammonium fluorosilicate.

公开(公告)号：US4064036A

公开(公告)日：1977-12-20

申请号：US732533

申请日：1976-10-14

申请人： Danford E. Clark

发明人： Danford E. Clark

IPC分类号： C10G49/24 ,  B01J29/14 ,  G01M3/04 ,  G01N31/10 ,  G01N33/00

CPC分类号： C10G49/24

摘要： In the pressure testing of catalyst-loaded reactors with nitrogen gas at elevated temperatures, it is found that certain types of zeolite catalysts are substantially degraded in activity. The catalysts concerned comprises a Group VIII noble metal in an oxidized state, dispersed on a crystalline hydrogen zeolite, e.g., Y zeolite. It has now been discovered however that if such catalysts are first prereduced with a dilute, non-combustible mixture of nitrogen and hydrogen, damage on subsequent pressure testing with nitrogen is prevented or drastically reduced. Following pressure testing, the catalyst is activated by dehydration in a stream of hydrogen at elevated temperatures and pressures.

摘要翻译： 在具有氮气的催化剂负载的反应器在升高的温度下的压力测试中，发现某些类型的沸石催化剂的活性显着降低。 所涉及的催化剂包括分散在结晶氢沸石如Y沸石上的氧化态的VIII族贵金属。 然而，现在已经发现，如果首先用稀释的，不可燃的氮气和氢气的混合物还原这种催化剂，则防止或大大降低随后用氮气进行的压力测试的损害。 经过压力测试，催化剂在高温和高压下在氢气流中脱水而活化。

公开(公告)号：US5206194A

公开(公告)日：1993-04-27

申请号：US717985

申请日：1991-06-20

申请人： Danford E. Clark

发明人： Danford E. Clark

IPC分类号： B01J29/90 ,  B01J38/12 ,  C10G47/16

CPC分类号： B01J38/12 ,  B01J29/90 ,  C10G47/16

摘要： A reactivated catalyst having optimum activity for hydrocracking and other acid catalyzed chemical conversion processes is prepared by contacting its deactivated counterpart, which contains a crystalline molecular sieve, a Group VIII noble metal hydrogenation component and carbonaceous deposits, with a gas containing molecular oxygen, preferably air, at a temperature between 950.degree. and 1200.degree. F., preferably between about 1050.degree. and 1150.degree. F., for a time sufficient to remove at least a portion of the carbonaceous deposits. When the reactivated catalyst contains a dealuminated Y zeolite that has been ion-exchanged with both noble metal and rare earth metal cations, its activity for hydrocracking in an ammonia-deficient atmosphere can be further increased by a rejuvenation procedure in which the reactivated catalyst is contacted with an aqueous ammonia solution in which an ammonium salt has been dissolved.

摘要翻译： 通过将含有结晶分子筛，第VIII族贵金属氢化组分和含碳沉积物的失活的对应物与含有分子氧的气体（优选空气）接触来制备具有用于加氢裂化和其它酸催化的化学转化过程的最佳活性的再活化催化剂 在950°至1200°F的温度下，优选在约1050°至1150°F之间，足以除去至少一部分碳质沉积物的时间。 当再活化的催化剂含有与贵金属和稀土金属阳离子进行离子交换的脱铝Y沸石时，可以通过再活化催化剂接触的再生方法进一步提高其在氨缺乏气氛中的加氢裂化活性 与其中已经溶解有铵盐的氨水溶液。

公开(公告)号：US5118406A

公开(公告)日：1992-06-02

申请号：US693369

申请日：1991-04-30

申请人： Peter Kokayeff ,  Danford E. Clark ,  Howard D. Simpson

发明人： Peter Kokayeff ,  Danford E. Clark ,  Howard D. Simpson

IPC分类号： C10G45/08

CPC分类号： C10G45/08

摘要： A catalytic hydrotreating process wherein silicon-containing contaminants contained in a hydrocarbon feedstream are deposited onto a hydrotreating catalyst bed during hydrotreating in a manner providing improved catalyst stability. Hydrotreating catalysts having relatively high activities and low surface areas are located downstream of upstream hydrotreating catalysts having relatively low activities and high surface areas.

摘要翻译： 催化加氢处理方法，其中包含在烃进料流中的含硅污染物以提供改进的催化剂稳定性的方式在加氢处理期间沉积在加氢处理催化剂床上。 具有较高活性和低表面积的加氢处理催化剂位于具有较低活性和高表面积的上游加氢处理催化剂的下游。

公开(公告)号：US5340957A

公开(公告)日：1994-08-23

申请号：US994535

申请日：1992-12-21

申请人： Danford E. Clark

发明人： Danford E. Clark

IPC分类号： B01J29/90 ,  B01J38/12 ,  C10G47/16 ,  C10G47/18 ,  C10G65/10

CPC分类号： B01J38/12 ,  B01J29/90 ,  C10G47/16

摘要： A reactivated catalyst having optimum activity for hydrocracking and other acid catalyzed chemical conversion processes is prepared by contacting its deactivated counterpart, which contains a crystalline molecular sieve, a Group VIII noble metal hydrogenation component and carbonaceous deposits, with a gas containing molecular oxygen, preferably air, at a temperature between 950.degree. and 1200.degree. F., preferably between about 1050.degree. and 1150.degree. F., for a time sufficient to remove at least a portion of the carbonaceous deposits. When the reactivated catalyst contains a dealuminated Y zeolite that has been ion-exchanged with both noble metal and rare earth metal cations, its activity for hydrocracking in an ammonia-deficient atmosphere can be further increased by a rejuvenation procedure in which the reactivated catalyst is contacted with an aqueous ammonia solution in which an ammonium salt has been dissolved.

摘要翻译： 通过将含有结晶分子筛，第VIII族贵金属氢化组分和含碳沉积物的失活的对应物与含有分子氧的气体（优选空气）接触来制备具有用于加氢裂化和其它酸催化的化学转化过程的最佳活性的再活化催化剂 在950°至1200°F的温度下，优选在约1050°至1150°F之间，足以除去至少一部分碳质沉积物的时间。 当再活化的催化剂含有与贵金属和稀土金属阳离子进行离子交换的脱铝Y沸石时，可以通过再活化催化剂接触的再生方法进一步提高其在氨缺乏气氛中的加氢裂化活性 与其中已经溶解有铵盐的氨水溶液。

公开(公告)号：US4689137A

公开(公告)日：1987-08-25

申请号：US855661

申请日：1986-04-25

申请人： Danford E. Clark

发明人： Danford E. Clark

IPC分类号： B01J29/12 ,  C10G47/18 ,  C10G69/02 ,  C10G47/20

CPC分类号： B01J29/126 ,  C10G47/18

摘要： A catalyst composition composed of a crystalline aluminosilicate Y zeolite, normally having a silica-to-alumina mole ratio of about 6.2 or above, in combination with a porous, inorganic refractory oxide. The Y zeolite contains ion-exchanged rare earth cations and ion-exchanged Group VIII noble metal cations. The combination of the zeolite and the refractory oxide contains between 4.5 weight percent and about 6.0 weight percent water. Such a catalyst containing the recited amount of water has been found to have consistently high activities when used as a catalyst in a hydrocracking process. The Y zeolites used as part of the catalyst are typically prepared by contacting an ammonium-exchanged Y zeolite with an aqueous solution of ammonium fluorosilicate.

摘要翻译： 通常具有约6.2或更高的二氧化硅 - 氧化铝摩尔比的结晶硅铝酸盐Y沸石与多孔无机难熔氧化物组合的催化剂组合物。 Y沸石含有离子交换的稀土阳离子和离子交换的VIII族贵金属阳离子。 沸石和难熔氧化物的组合含有4.5重量％至约6.0重量％的水。 已发现含有所述量的这种催化剂在加氢裂化方法中用作催化剂时具有一贯的高活性。 用作催化剂一部分的Y沸石通常通过使铵交换的Y沸石与氟硅酸铵的水溶液接触来制备。