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公开(公告)号：US4405443A
公开(公告)日：1983-09-20
申请号：US363269
申请日：1982-03-29
CPC分类号： B01D53/507 , B01J23/10 , B01J29/06 , B01J29/061 , B01J35/0006
摘要： Sulfur oxides are removed from a gas by an absorbent comprising at least one inorganic oxide selected from the group consisting of the oxides of aluminum, magnesium, zinc, titanium, and calcium in association with yttrium or yttrium combined with at least one free or combined rare earth metal selected from the group consisting of lanthanum, cerium, praseodymium, samarium, and dysprosium, wherein the ratio by weight of inorganic oxide or oxides to yttrium or yttrium combined with a rare earth metal or metals is from about 0.1 to about 30,000. Absorbed sulfur oxides are recovered as a sulfur-containing gas by contacting the spent absorbent with a hydrocarbon in the presence of a hydrocarbon cracking catalyst at a temperature from about 375.degree. to about 900.degree. C. The absorbent can be circulated through a fluidized catalytic cracking process together with the hydrocarbon cracking catalyst to reduce sulfur oxide emissions from the regeneration zone thereof.
摘要翻译： 通过包含至少一种选自铝，镁，锌，钛和钙的氧化物与钇或钇的至少一种游离或组合的稀有金属的钇或钇的无机氧化物的吸收剂从气体中除去硫氧化物 选自镧，铈，镨，钐和镝的地球金属，其中与稀土金属或金属组合的无机氧化物或氧化物与钇或钇的重量比为约0.1至约30,000。 通过在烃裂化催化剂存在下，在大约375°至大约900℃的温度下将废吸收剂与烃接触，将吸收的硫氧化物作为含硫气体回收。吸收剂可以通过流化催化裂化 与烃裂解催化剂一起处理以减少其再生区的硫氧化物排放。
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公开(公告)号：US4381991A
公开(公告)日：1983-05-03
申请号：US288944
申请日：1981-07-31
CPC分类号： B01D53/508 , C10G11/18
摘要： Sulfur oxides are removed from a gas by an absorbent comprising magnesium oxide in association with at least one free or combined rare earth metal selected from the group consisting of lanthanum, cerium, praseodymium, samarium, and dysprosium, wherein the ratio by weight of inorganic oxide or oxides to rare earth metal or metals is from about 0.1 to about 30,000. Absorbed sulfur oxides are recovered as a sulfur-containing gas comprising hydrogen sulfide by contacting the spent absorbent with a hydrocarbon in the presence of a hydrocarbon cracking catalyst at a temperature from about 375.degree. to about 900.degree. C. The absorbent can be circulated through a fluidized catalytic cracking process together with the hydrocarbon cracking catalyst to reduce sulfur oxide emissions from the regeneration zone.
摘要翻译： 通过包含氧化镁的吸收剂与至少一种选自镧，铈，镨，钐和镝的游离或组合的稀土金属从气体中除去硫氧化物，其中无机氧化物的重量比 或氧化物至稀土金属或金属为约0.1至约30,000。 通过在烃裂化催化剂存在下，在大约375°至大约900℃的温度下，使用废吸收剂与烃接触，将吸收的硫氧化物作为包含硫化氢的含硫气体回收。吸收剂可循环通过 流化催化裂化过程与烃裂化催化剂一起减少再生区的硫氧化物排放。
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公开(公告)号：US4497902A
公开(公告)日：1985-02-05
申请号：US536246
申请日：1983-09-27
CPC分类号： B01J21/10 , B01D53/508 , B01J23/10 , C10G11/18
摘要： An absorbent for sulfur oxides comprising an inorganic oxide composition in association with at least one free or combined rare earth metal selected from the group consisting of lanthanum, cerium, praseodymium, samarium and dysprosium, wherein said inorganic oxide composition is selected from the group consisting of MgAl.sub.2 O.sub.4, mixtures of alumina with magnesium oxide and mixtures of magnesium oxide with MgAl.sub.2 O.sub.4. The absorbent can be circulated through a fluidized catalytic cracking process together with hydrocarbon cracking catalyst to reduce sulfur oxide emissions from the regeneration zone.
摘要翻译： 一种用于硫氧化物的吸收剂，其包含与至少一种选自镧，铈，镨，钐和镝的游离或组合的稀土金属相关的无机氧化物组合物，其中所述无机氧化物组合物选自 MgAl2O4，氧化铝与氧化镁的混合物以及氧化镁与MgAl2O4的混合物。 吸收剂可与烃裂化催化剂一起通过流化催化裂化过程循环，以减少再生区的硫氧化物排放。
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公开(公告)号：US4376103A
公开(公告)日：1983-03-08
申请号：US314579
申请日：1981-10-26
CPC分类号： C10G11/18 , B01D53/8609
摘要： Sulfur oxides are removed from a gas with absorbents and then are removed from the absorbents by contact with a hydrocarbon in the presence of a cracking catalyst. The absorbents comprise an exhaustively-exchanged rare-earth-form zeolite and a free form of an inorganic oxide selected from the group consisting of the oxides of aluminum, magnesium, zinc, titanium, and calcium. The sulfur oxides are removed from the absorbents as a sulfur-containing gas which comprises hydrogen sulfide.
摘要翻译： 硫氧化物从具有吸收剂的气体中除去，然后通过在裂化催化剂存在下与烃接触而从吸收剂中除去。 吸收剂包括选自由铝，镁，锌，钛和钙的氧化物组成的组的无机氧化物的自由形式的稀土交换的稀土型沸石和游离形式的无机氧化物。 硫氧化物作为包含硫化氢的含硫气体从吸收剂中除去。
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公开(公告)号：US4363720A
公开(公告)日：1982-12-14
申请号：US263297
申请日：1981-05-13
CPC分类号： C10G11/02
摘要： A hydrocarbon cracking catalyst is treated with zinc to passivate contaminant metals, e.g., nickel, copper, vanadium, and iron, which are deposited on the catalyst during the catalytic cracking of hydrocarbon feedstocks.
摘要翻译： 烃裂解催化剂用锌处理以钝化在烃原料的催化裂化期间沉积在催化剂上的污染金属，例如镍，铜，钒和铁。
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公开(公告)号：US4836993A
公开(公告)日：1989-06-06
申请号：US536247
申请日：1983-09-27
CPC分类号： B01D53/508 , B01J20/0207 , B01J20/041 , B01J20/08 , B01J20/3078 , B01J20/3433 , B01J2220/42
摘要： Sulfur oxides are removed from a gas by an absorbent which comprises an inorganic oxide composition in association with at least one free or combined rare earth metal selected from the group consisting of lanthanum, cerium, praseodymium, samarium and dysprosium, wherein said inorganic oxide composition is selected from the group consisting of MgAl.sub.2 O.sub.4, mixtures of alumina with magnesium oxide and mixtures of magnesium oxide with MgAl.sub.2 O.sub.4. The absorbent can be circulated through a fluidized catalytic cracking process together with hydrocarbon cracking catalyst to reduce sulfur oxide emissions from the regeneration zone.
摘要翻译： 通过吸收剂将硫氧化物从气体中除去，该吸收剂包含与选自镧，铈，镨，钐和镝中的至少一种游离或组合的稀土金属相关联的无机氧化物组合物，其中所述无机氧化物组合物为 选自MgAl 2 O 4，氧化铝与氧化镁的混合物以及氧化镁与MgAl 2 O 4的混合物。 吸收剂可与烃裂化催化剂一起通过流化催化裂化过程循环，以减少再生区的硫氧化物排放。
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公开(公告)号：US4423019A
公开(公告)日：1983-12-27
申请号：US288995
申请日：1981-07-31
CPC分类号： C10G11/18 , B01D53/508
摘要： Sulfur oxides are removed from a gas by an absorbent which comprises a physical mixture of (1) a particulate cracking catalyst comprising from about 0.5 to about 50 weight percent of a crystalline aluminosilicate zeolite which is distributed throughout a porous matrix wherein said matrix comprises from about 70 to about 100 weight percent of alumina and (2) a particulate solid other than cracking catalyst which comprises at least one inorganic oxide selected from the group consisting of the oxides of aluminum and magnesium in association with at least one free or combined rare earth metal selected from the group consisting of lanthanum, cerium, praseodymium, samarium and dysprosium, wherein the ratio by weight of inorganic oxide or oxides to rare earth metal or metals is from about 1.0 to about 1,000. Absorbed sulfur oxides are recovered as a sulfur-containing gas comprising hydrogen sulfide by contacting the spent absorbent with a hydrocarbon at a temperature from about 375.degree. to about 900.degree. C. The absorbent can be circulated through a catalytic cracking process to reduce sulfur oxide emissions from the regeneration zone.
摘要翻译： 通过吸收剂将硫氧化物从气体中除去，该吸收剂包括（1）包含约0.5至约50重量％的结晶硅铝酸盐沸石的颗粒裂化催化剂的物理混合物，其分布在整个多孔基质中，其中所述基质包含约 70至约100重量％的氧化铝和（2）除裂化催化剂以外的颗粒固体，其包含至少一种选自铝和镁的氧化物的无机氧化物，其与至少一种游离或组合速率的土壤金属 选自镧，铈，镨，钐和镝，其中无机氧化物或氧化物与稀土金属或金属的重量比为约1.0至约1,000。 吸收的硫氧化物作为包含硫化氢的含硫气体通过在大约375°至大约900℃的温度下使废吸收剂与烃接触来回收。吸收剂可以通过催化裂化过程循环以减少氧化硫排放 从再生区。
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公开(公告)号：US4369108A
公开(公告)日：1983-01-18
申请号：US288778
申请日：1981-07-31
CPC分类号： C10G11/05 , B01D53/508
摘要： Sulfur oxides are removed from a gas by an absorbent which comprises alumina in association with free or combined lanthanum, wherein the ratio by weight of alumina to lanthanum is from about 0.1 to about 30,000. Absorbed sulfur oxides are recovered as a sulfur-containing gas comprising hydrogen sulfide by contacting the spent absorbent with a hydrocarbon in the presence of a hydrocarbon cracking catalyst at a temperature from about 375.degree. to about 900.degree. C. The absorbent can be circulated through a fluidized catalytic cracking process together with the hydrocarbon cracking catalyst to reduce sulfur oxide emissions from the regeneration zone.
摘要翻译： 通过包含与游离或组合的镧相关的氧化铝的吸收剂从气体中除去硫氧化物，其中氧化铝与镧的重量比为约0.1至约30,000。 通过在烃裂化催化剂存在下，在大约375°至大约900℃的温度下，使用废吸收剂与烃接触，将吸收的硫氧化物作为包含硫化氢的含硫气体回收。吸收剂可循环通过 流化催化裂化过程与烃裂化催化剂一起减少再生区的硫氧化物排放。
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公开(公告)号：US4542116A
公开(公告)日：1985-09-17
申请号：US491121
申请日：1983-05-03
CPC分类号： B01J23/10 , B01D53/507 , B01J29/06 , B01J29/061 , B01J35/0006
摘要： Sulfur oxides are removed from a gas by an absorbent comprising at least one inorganic oxide selected from the group consisting of the oxides of aluminum, magnesium, zinc, titanium, and calcium in association with yttrium or yttrium combined with at least one free or combined rare earth metal selected from the group consisting of lanthanum, cerium, praseodymium, samarium, and dysprosium, wherein the ratio by weight of inorganic oxide or oxides to yttrium or yttrium combined with a rare earth metal or metals is from about 0.1 to about 30,000. Absorbed sulfur oxides are recovered as a sulfur-containing gas by contacting the spent absorbent with a hydrocarbon in the presence of a hydrocarbon cracking catalyst at a temperture from about 375.degree. to about 900.degree. C. The absorbent can be circulated through a fluidized catalytic cracking process together with the hydrocarbon cracking catalyst to reduce sulfur oxide emissions from the regeneration zone thereof.
摘要翻译： 通过包含至少一种选自铝，镁，锌，钛和钙的氧化物与钇或钇的至少一种游离或组合的稀有金属的钇或钇的无机氧化物的吸收剂从气体中除去硫氧化物 选自镧，铈，镨，钐和镝的地球金属，其中与稀土金属或金属组合的无机氧化物或氧化物与钇或钇的重量比为约0.1至约30,000。 吸收的硫氧化物作为含硫气体通过在约375℃至约900℃的温度下在烃裂化催化剂存在下使废吸收剂与烃接触来回收。吸收剂可以通过流化催化裂化 与烃裂解催化剂一起处理以减少其再生区的硫氧化物排放。
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公开(公告)号：US4369130A
公开(公告)日：1983-01-18
申请号：US220275
申请日：1980-12-29
CPC分类号： B01D53/508 , B01J29/061 , B01J29/088 , C10G11/05 , B01J23/10
摘要： Sulfur oxides are removed from a gas by an absorbent comprising at least one inorganic oxide selected from the group consisting of the oxides of aluminum, magnesium, zinc, titanium, and calcium in association with at least one free or combined rare earth metal selected from the group consisting of lanthanum, cerium, praseodymium, samarium, and dysprosium, wherein the ratio by weight of inorganic oxide or oxides to rare earth metal or metals is from about 0.1 to about 30,000. Absorbed sulfur oxides are recovered as a sulfur-containing gas comprising hydrogen sulfide by contacting the spent absorbent with a hydrocarbon in the presence of a hydrocarbon cracking catalyst at a temperature from about 375.degree. to about 900.degree. C. The absorbent can be circulated through a fluidized catalytic cracking process together with the hydrocarbon cracking catalyst to reduce sulfur oxide emissions from the regeneration zone.
摘要翻译： 与含有至少一种选自铝，镁，锌，钛和钙的氧化物的至少一种无机氧化物的吸收剂一起从气体中除去硫氧化物，该至少一种无机氧化物与至少一种游离或组合的稀土金属组合， 由镧，铈，镨，钐和镝组成的组，其中无机氧化物或氧化物与稀土金属或金属的重量比为约0.1至约30,000。 通过在烃裂化催化剂存在下，在大约375°至大约900℃的温度下，使用废吸收剂与烃接触，将吸收的硫氧化物作为包含硫化氢的含硫气体回收。吸收剂可循环通过 流化催化裂化过程与烃裂化催化剂一起减少再生区的硫氧化物排放。
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