ExxonMobil Chemical Company recently developed a new type of silicoaluminophosphate molecular sieve methanol to propylene catalyst. The catalytic activity of this catalyst is significantly increased, and the selectivity of ethylene and propylene can be improved.
As the prices of ethylene cracking raw materials such as naphtha, ethane, and propane have risen, prices of raw materials such as ethylene and propylene have risen sharply, and efforts are being made to develop alternative methods for the production of various olefinic raw materials, one of which is the development of methane-based methanol to propylene TO TO ┕㲠┕㲠┕㲠┕㲠┕㲠┕㲠眉 眉 眉 眉 玫 玫 玫 玫 玫 玫 玫 玫 玫 玫 玫 玫 玫 玫 玫 既 既 既 既 既 既 既 既 既 既 既 既 既 既 既 既 ? ? ? ? ? ? ? ? ? ? ? ? ? 6 TO TO technology commercialization The main problem is that the catalyst is coking too quickly. The new catalyst developed by ExxonMobil Chemical Co., Ltd. solves this problem.
Catalyst validation tests conducted in a microreactor show that under specific process conditions 50 mg of silicoaluminophosphate molecular sieve (SAPO-34) and 40 mg of silicoaluminophosphate molecular sieve (SAPO-34) with 10 mg of Group IIIB metal oxide The (Y2O3) mixture was reacted separately and the catalyst was mixed to extend the reaction time by more than 10 times. In addition, Y2O3 can also increase the yield of ethylene and propylene, and the ethylene/propylene yield ratio is 0.90:1 when SAPO-34 catalyst is used, and the ratio drops to 0.76:1 when the mixture is used as a catalyst.
As the prices of ethylene cracking raw materials such as naphtha, ethane, and propane have risen, prices of raw materials such as ethylene and propylene have risen sharply, and efforts are being made to develop alternative methods for the production of various olefinic raw materials, one of which is the development of methane-based methanol to propylene TO TO ┕㲠┕㲠┕㲠┕㲠┕㲠┕㲠眉 眉 眉 眉 玫 玫 玫 玫 玫 玫 玫 玫 玫 玫 玫 玫 玫 玫 玫 既 既 既 既 既 既 既 既 既 既 既 既 既 既 既 既 ? ? ? ? ? ? ? ? ? ? ? ? ? 6 TO TO technology commercialization The main problem is that the catalyst is coking too quickly. The new catalyst developed by ExxonMobil Chemical Co., Ltd. solves this problem.
Catalyst validation tests conducted in a microreactor show that under specific process conditions 50 mg of silicoaluminophosphate molecular sieve (SAPO-34) and 40 mg of silicoaluminophosphate molecular sieve (SAPO-34) with 10 mg of Group IIIB metal oxide The (Y2O3) mixture was reacted separately and the catalyst was mixed to extend the reaction time by more than 10 times. In addition, Y2O3 can also increase the yield of ethylene and propylene, and the ethylene/propylene yield ratio is 0.90:1 when SAPO-34 catalyst is used, and the ratio drops to 0.76:1 when the mixture is used as a catalyst.
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