The present disclosure provides a method of preparing a catalyst for synthesizing dimethyl ether or methylacetate from synthetic gas that includes preparing a nanosheet ferrierite zeolite (FER), and co-precipitating the nanosheet ferrierite zeolite and a precursor of a Cu—Zn—Al-based oxide (CZA) to obtain a hybrid CZA/FER catalyst.

The present disclosure relates to a multi-sandwich composite catalyst and a preparation method and application thereof. The present disclosure provides a preparation method of a multi-sandwich composite catalyst, comprises the following steps: sequentially depositing a first layer oxide, a first active metal, an oxide interlayer, a second active metal and a surface oxide on a template, and sequentially performing calcination and reduction, thereby obtaining a multi-sandwich composite catalyst; wherein the first active metal and the second active metal are different kinds of active metals. In the present disclosure, a multi-sandwich structure is formed by depositing the oxides and active metals alternately, so that the position and spacing distance of the active centers can be precisely controlled. The multi-sandwich composite catalyst prepared by the method provided described herein has a higher conversion than that of a catalyst without an interlayer when used for the catalytic reaction.

The present disclosure relates to a multi-sandwich composite catalyst and a preparation method and application thereof. The present disclosure provides a preparation method of a multi-sandwich composite catalyst, comprises the following steps: sequentially depositing a first layer oxide, a first active metal, an oxide interlayer, a second active metal and a surface oxide on a template, and sequentially performing calcination and reduction, thereby obtaining a multi-sandwich composite catalyst; wherein the first active metal and the second active metal are different kinds of active metals. In the present disclosure, a multi-sandwich structure is formed by depositing the oxides and active metals alternately, so that the position and spacing distance of the active centers can be precisely controlled. The multi-sandwich composite catalyst prepared by the method provided described herein has a higher conversion than that of a catalyst without an interlayer when used for the catalytic reaction.

Disclosed are processes for producing propylene and butylene. The processes can include contacting a first stream containing methane with an oxidant and oxidizing at least a portion of the methane under conditions suitable to produce a second stream containing carbon monoxide (CO) and hydrogen (H.sub.2), contacting the second stream with a CO hydrogenation catalyst under conditions suitable to produce a third stream containing propanol and butanol, and contacting the third stream with an dehydration catalyst under conditions suitable to dehydrate at least a portion of the propanol and butanol and produce a products stream containing propylene and butylene.

Disclosed are processes for producing propylene and butylene. The processes can include contacting a first stream containing methane with an oxidant and oxidizing at least a portion of the methane under conditions suitable to produce a second stream containing carbon monoxide (CO) and hydrogen (H.sub.2), contacting the second stream with a CO hydrogenation catalyst under conditions suitable to produce a third stream containing propanol and butanol, and contacting the third stream with an dehydration catalyst under conditions suitable to dehydrate at least a portion of the propanol and butanol and produce a products stream containing propylene and butylene.

Disclosed are processes for producing propylene and butylene. The processes can include contacting a first stream containing methane with an oxidant and oxidizing at least a portion of the methane under conditions suitable to produce a second stream containing carbon monoxide (CO) and hydrogen (H.sub.2), contacting the second stream with a CO hydrogenation catalyst under conditions suitable to produce a third stream containing propanol and butanol, and contacting the third stream with an dehydration catalyst under conditions suitable to dehydrate at least a portion of the propanol and butanol and produce a products stream containing propylene and butylene.

Disclosed are processes for producing ethylene. The processes can include contacting a first stream containing methane with an oxidant and oxidizing at least a portion of the methane under conditions suitable to produce a second stream containing carbon monoxide (CO) and hydrogen (H.sub.2), contacting the second stream with a CO hydrogenation catalyst under conditions suitable to produce a third stream containing methanol and ethanol, obtaining a fourth stream containing the ethanol and a fifth stream containing the methanol from the third stream, and contacting the fourth stream with an ethanol dehydration catalyst under conditions suitable to dehydrate at least a portion of the ethanol and produce a products stream containing ethylene.

Disclosed are processes for producing ethylene. The processes can include contacting a first stream containing methane with an oxidant and oxidizing at least a portion of the methane under conditions suitable to produce a second stream containing carbon monoxide (CO) and hydrogen (H.sub.2), contacting the second stream with a CO hydrogenation catalyst under conditions suitable to produce a third stream containing methanol and ethanol, obtaining a fourth stream containing the ethanol and a fifth stream containing the methanol from the third stream, and contacting the fourth stream with an ethanol dehydration catalyst under conditions suitable to dehydrate at least a portion of the ethanol and produce a products stream containing ethylene.

Disclosed are processes for producing ethylene. The processes can include contacting a first stream containing methane with an oxidant and oxidizing at least a portion of the methane under conditions suitable to produce a second stream containing carbon monoxide (CO) and hydrogen (H.sub.2), contacting the second stream with a CO hydrogenation catalyst under conditions suitable to produce a third stream containing methanol and ethanol, obtaining a fourth stream containing the ethanol and a fifth stream containing the methanol from the third stream, and contacting the fourth stream with an ethanol dehydration catalyst under conditions suitable to dehydrate at least a portion of the ethanol and produce a products stream containing ethylene.

A process for the preparation of a composition comprising oxygenates and hydrocarbons by means of a Fischer-Tropsch synthesis reaction, said process comprising contacting a mixture of hydrogen, carbon monoxide, and carbon dioxide gases with a supported Co—Mn Fischer-Tropsch synthesis catalyst, wherein the supported synthesis catalyst comprises at least 2.5 wt % of manganese, on an elemental basis, based on the total weight of the supported synthesis catalyst; the weight ratio of manganese to cobalt, on an elemental basis, is 0.2 or greater; and, wherein carbon dioxide is present in the Fischer-Tropsch synthesis reaction is at least 5% v/v.