Abstract:
The invention relates to a method for preparing a hydrocracking catalyst comprising: (i) providing a shaped body comprising a zeolite and a binder, wherein the shaped body has been obtained by shaping, calcination and cooling, wherein the zeolite is ZSM-5 having a silica (S i O 2 ) to alumina (AI 2 O 3 ) molar ratio of 25-75; (ii) optionally drying the shaped body at a temperature of 100-300°C for a period of at least 1 hour; (iii) depositing a hydrogenation metal on the shaped body by an impregnation for a period of at most 2 hours such that the amount of the hydrogenation metal is 0.010-0.30 wt% with respect to the total catalyst; (iv) optionally rinsing the metal deposited shaped body with water; and (v) heat-treating the metal deposited shaped body in air at a temperature of 250-300 °C for a period of 1-5 hours; wherein the catalyst comprises a total of less than 0.05 wt% sodium and cesium.
Abstract translation:本发明涉及制备加氢裂化催化剂的方法,其包括:(i)提供包含沸石和粘合剂的成型体,其中所述成型体已通过成型,煅烧和冷却获得,其中 该沸石是具有相对于氧化铝(Al 2 O 3)的二氧化硅(S 1 O 2)的ZSM-5, )摩尔比为25-75; (ii)任选地在100-300℃的温度下干燥成型体达至少1小时; (iii)通过浸渍最多2小时的时间将氢化金属沉积在成形体上,使得氢化金属的量相对于总催化剂为0.010-0.30重量%; (iv)任选用水冲洗沉积金属的成形体; 和(v)在250-300℃的温度下,在空气中对金属沉积成形体进行1-5小时的热处理; 其中所述催化剂包含总计小于0.05重量%的钠和铯。 p>
Abstract:
Disclosed is a catalyst comprising a zeolite comprising a framework, the framework comprising silicon and aluminum, and a noble metal. The zeolite has undergone at least a first exchange with a Group I or II cation or ammonium and thereafter is contacted with a second Group I or II cation. The step of contacting comprises an exchange, incipient wetness, or dry impregnation. The noble metal is deposited at the zeolite.
Abstract:
A process for hydrocracking 2,4-dimethylpentane and/or 2,2,3-trimethylbutane can comprise: contacting a hydrocracking feed stream in the presence of hydrogen with a hydrocracking catalyst, wherein the hydrocracking feed stream comprises at least 0.5 wt% of 2,4-dimethylpentane and/or 2,2,3-trimethylbutane, based upon a total weight of the hydrocracking feed stream; and wherein the hydrocracking catalyst comprises a medium pore zeolite having a pore size of 5-6 A and a silica to alumina molar ratio of 20-75; preferably the hydrocracking catalyst comprises a medium pore zeolite having a pore size of 5-6 A and a silica to alumina molar ratio of 20-75 and a large pore zeolite having a pore size of 6-8 A and a silica to alumina molar ratio of 10-80, wherein the hydrogenation metal is deposited on the medium pore zeolite and the large pore zeolite.
Abstract:
The invention relates to a process for producing benzene comprising the steps of: (a) providing a hydrocracking feed stream comprising C 5 -C 12 hydrocarbons, (b) contacting the hydrocracking feed stream in the presence of hydrogen with a hydrocracking catalyst under process conditions including a temperature of 425-580°C, a pressure of 300-5000 kPa gauge and a Weight Hourly Space Velocity of 3-30 h -1 to produce a hydrocracking product stream comprising BTX and (c) separating the BTX from the hydrocracking product stream, wherein the hydrocracking catalyst comprises a shaped body comprising a zeolite and a binder and a hydrogenation metal deposited on the shaped body, wherein the amount of the hydrogenation metal is 0.010-0.30 wt-% with respect to the total catalyst and wherein the zeolite is ZSM-5 having a silica (SiO 2 ) to alumina (Al 2 O 3 ) molar ratio of 25-75.
Abstract translation:本发明涉及一种生产苯的方法,包括以下步骤:(a)提供包含C5-C12烃的加氢裂化原料流,(b)在加氢裂化催化剂存在下,在加氢裂化催化剂存在下使加氢裂化原料流与 温度为425-580℃,压力为300-5000kPa表压,重量每小时空速为3-30h-1,以产生包含BTX的加氢裂化产物流,和(c)从加氢裂化产物流中分离出BTX, 其中所述加氢裂化催化剂包括成形体,其包含沸石和粘合剂以及沉积在所述成型体上的氢化金属,其中所述氢化金属的量相对于所述总催化剂为0.010-0.30重量%,并且其中所述沸石为ZSM -5具有二氧化硅(SiO 2)与氧化铝(Al 2 O 3)的摩尔比为25-75。
Abstract:
Disclosed herein is a process for preparing a hydrocracking catalyst, comprising (i) combining a zeolite, a binder, water and a hydrogenating metal compound which is a complex or a salt of a hydrogenating metal to obtain a mixture, wherein the zeolite has not been treated with a phosphorus-containing compound and the zeolite has a silica to alumina molar ratio of 5-200; (ii) forming the mixture into a shaped body; and (iii) calcining the shaped body to form the catalyst.
Abstract:
The invention relates to a process for preparing a hydrocracking catalyst, comprising (i) contacting a shaped body comprising a zeolite and a binder with an aqueous solution of a hydrogenation metal compound which is a complex or a salt of a hydrogenation metal to deposit the hydrogenation metal onto the shaped body, wherein the aqueous solution comprises an ammonium salt and (ii) calcining the shaped body obtained by step (i).
Abstract:
Disclosed is a method for converting an alkyl halide to an olefin. The method includes contacting a silicoaluminophosphate (SAPO) catalyst with a feed that includes an alkyl halide under reaction conditions sufficient to produce an olefin hydrocarbon product that includes C 2 to C 4 olefins. The SAPO catalyst has bimodal acidity designated as weak acid sites and strong acid sites. The weak acid concentration is less than 0.55 mmol/g-cat and the total acid concentration is less than 1.5 mmol/g-cat.