A method for making a new crystalline molecular sieve designated SSZ-105 is disclosed. SSZ-105 is synthesized using N,N-dimethylpiperidinium cations as a structure directing agent. SSZ-105 is a disordered aluminosilicate molecular sieve comprising at least one intergrown phase of an ERI framework type molecular sieve and an LEV framework type molecular sieve.

A method is disclosed for preparing zeolite SSZ-98 using N,N-dimethylpiperidinium cations as a structure directing agent.

A method is disclosed for preparing zeolite SSZ-98 using 1,3-dicyclohexylimidazolium cations as a structure directing agent.

A method is disclosed for preparing zeolite SSZ-98 using 1,3-dicyclohexylimidazolium cations as a structure directing agent.

The present invention relates to a zeolite comprising zinc and platinum, and to a catalyst containing said zeolites.

A process for preparing C2 to C3 hydrocarbons may include introducing a feed stream including hydrogen gas and a carbon-containing gas comprising carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor, and converting the feed stream into a product stream comprising C2 to C3 hydrocarbons in the reaction zone in the presence of a hybrid catalyst. The hybrid catalyst may include a metal oxide catalyst component and a microporous catalyst component comprising 8-MR pore openings less than or equal to 5.1 A and a cage defining ring size less than or equal to 7.45 A, where a C2/C3 carbon molar ratio of the product stream is greater than or equal to 0.7.

A process for preparing C2 to C3 hydrocarbons may include introducing a feed stream including hydrogen gas and a carbon-containing gas comprising carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor, and converting the feed stream into a product stream comprising C2 to C3 hydrocarbons in the reaction zone in the presence of a hybrid catalyst. The hybrid catalyst may include a metal oxide catalyst component and a microporous catalyst component comprising 8-MR pore openings less than or equal to 5.1 A and a cage defining ring size less than or equal to 7.45 A, where a C2/C3 carbon molar ratio of the product stream is greater than or equal to 0.7.

A process for obtaining light olefins from a hydrocarbonaceous feedstock comprising a polymer recyclate, a polyol, a biomass composition, or a combination thereof. A process comprising contacting the hydrocarbonaceous feedstock with a small pore size zeolite catalyst in a reaction zone under pyrolysis conditions to produce a product stream comprising ethylene and/or propylene and aromatics. The hydrocarbonaceous feedstock is subjected to first pyrolysis conditions in a first reaction zone to produce a first reaction product. The first reaction product is then contacted with a small pore size zeolite catalyst in a second reaction zone under second pyrolysis conditions sufficient produce a second reaction product comprising ethylene and/or propylene and less than or equal to 8 wt % aromatics, based on the weight of the product stream. A hydrocarbonaceous waste stream is pretreated to produce the hydrocarbonaceous feedstock having a reduced content of contaminants harmful to zeolite catalysts.