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    • 2. 发明申请
    • A PROCESS FOR REJUVENATING A CATALYST COMPOSITION
    • 一种催化催化剂组合物的方法
    • WO2009058522A3
    • 2009-06-25
    • PCT/US2008079051
    • 2008-10-07
    • EXXONMOBIL CHEM PATENTS INCHELTON TERRY ENANDA VIJAYTAI WEI-PINGJURGENS-KOWAL TERESA AKEVILLE KATHLEEN M
    • HELTON TERRY ENANDA VIJAYTAI WEI-PINGJURGENS-KOWAL TERESA AKEVILLE KATHLEEN M
    • B01J29/04B01J29/08B01J29/18B01J29/70B01J29/90B01J38/02B01J38/04
    • B01J38/02B01J29/041B01J29/08B01J29/18B01J29/7007B01J29/90B01J38/04
    • This disclosure relates to a method for rejuvenating a catalyst, comprising contacting the catalyst with a gaseous feedstock at rejuvenation conditions for at least one hour to form a rejuvenated catalyst and a gaseous product, wherein the catalyst comprises at least 10 wt.% of a molecular sieve, wherein the catalyst prior to the contacting step comprises from 0.001 wt.% to 45 wt.% of hydrocarbons and 0.001 to 10 wt.% nitrogen containing components based on the total weight of the catalyst prior to the contacting step, wherein the molecular sieve comprises at least one of a MCM-22 family molecular sieve, a molecular sieve having a framework type of *BEA, a molecular sieve having a framework type of FAU, and a molecular sieve having a framework type of MOR, wherein the gaseous feedstock comprises at least one of N2, H2, alkane, He, Ar, CO, and CO2, wherein the gaseous product has at least a portion of the gaseous feedstock and at least a portion of the hydrocarbons of the catalyst and at least a portion of the nitrogen containing components of the catalyst, wherein the rejuvenation conditions comprise a temperature in the range from about 400 to 6000C, a pressure in the range from about 101.3 kPa-a to 10130 kPa-a, a space hourly velocity in the range of from 0.05 to 10 hr-1.
    • 本公开涉及一种用于使催化剂再生的方法,包括在再生条件下将催化剂与气体原料接触至少1小时以形成复原催化剂和气态产物,其中催化剂包含至少10重量%的分子 筛,其中在接触步骤之前的催化剂包含0.001重量%至45重量%的烃和0.001至10重量%的含氮组分,基于在接触步骤之前催化剂的总重量,其中分子 筛子包括MCM-22族分子筛,具有骨架类型为* BEA的分子筛,具有骨架类型的FAU的分子筛和具有骨架类型MOR的分子筛中的至少一种,其中气态原料 包括N 2,H 2,烷烃,He,Ar,CO和CO 2中的至少一种,其中气态产物具有气态原料的至少一部分和催化剂的至少一部分烃和 所述催化剂的含氮组分的至少一部分,其中所述再生条件包括在约400-600℃范围内的温度,在约101.3kPa-a至10130kPa-a的范围内的压力,空间时速 在0.05至10小时-1的范围内。
    • 9. 发明专利
    • ALKYLAROMATICS PRODUCTION
    • CA2693690A1
    • 2009-02-05
    • CA2693690
    • 2008-06-05
    • EXXONMOBIL CHEM PATENTS INCSTONE & WEBSTER INC
    • CLARK MICHAEL CNANDA VIJAYBHANDARKAR MARUTIPETERS JOSEPH CCHI CHUNG-MINGMAERZ BRIAN
    • C07C2/66C07C15/073
    • A process is described for producing an alkylaromatic compound, in which a first feed comprising an alkylatable aromatic compound and a second feed comprising an alkene are introduced into a first alkylation reaction zone comprising a first alkylation catalyst. The first alkylation reaction zone is operated under conditions effective to cause alkylation of the alkylatable aromatic compound by the alkene to produce said alkylaromatic compound, the conditions being such that the alkylatable aromatic compound is at least predominantly in the vapor phase. A first effluent comprising the alkylaromatic compound and unreacted alkylatable aromatic compound is withdrawn from the first alkylation reaction zone and at least part of the unreacted alkylatable aromatic compound is treated to remove catalyst poisons therefrom and produce a treated unreacted alkylatable aromatic stream. At least part of the unreacted alkylatable aromatic compound and a third feed comprising said alkene is introduced into a second alkylation reaction zone comprising a second alkylation catalyst. The second alkylation reaction zone is operated under conditions effective to cause alkylation of the unreacted alkylatable aromatic compound by the alkene to produce said alkylaromatic compound, the conditions being such that the alkylatable aromatic compound is at least predominantly in the liquid phase. A second effluent comprising said alkylaromatic compound is withdrawn from the second alkylation reaction zone.