China Petroleum Chemical Corporation

Shanghai Research Institute of Petrochemical Technology, Sinopec

Guangwei Ma

Liang Chen

Weimin Yang

Zaiku Xie

Hui Yao

Jingxian Xiao

Huiming Zhang

Xiqiang Chen

Xiaqin Yang

The present invention relate to a binderless molecular sieve catalyst and a process for preparing the same, which are mainly useful for solving the problems of the current catalysts, such as lower activity, less pore volume and worse diffusivity. The present invention relates to a novel binderless molecular sieve catalyst, comprising, based on the weight of the catalyst, 90-100 wt. % of a molecular sieve, 0-10 wt. % of a binder, and 0-10 wt. % of an anti-wear agent, wherein said catalyst has a pore volume of 0.1-0.5 ml/g, an average pore diameter of 50-100 nm, and a porosity of 20-40%; the anti-wear agent is selected from the rod or needle-like inorganic materials having a length/diameter ratio of 2-20. Said catalyst has the advantages of higher activity, greater pore volume, larger average pore diameter and porosity, and better diffusivity, and well solves said problems and can be used for the industrial preparation of binderless molecular sieve catalysts.

Binderless molecular sieve catalyst and a preparation method thereof

A catalyst for catalytic cracking in a fluidized-bed is disclosed. The catalyst comprises a support and a composition having the chemical formula (on the basis of the atom ratio): ABPOfor use in the industrial production of ethylene and propylene by catalytically cracking naphtha.

Catalyst for catalytic cracking in a fluidized bed

A catalyst composition comprising on weight basis the following components: a) 30 to 99.5% of at least one intergrowth molecular sieve; b) 0 to 20% of a rare earth element or oxides thereof; c) 0 to 10% of at least one element from Group VA of the Periodic Table or oxides thereof; d) 0 to 10% of at least one element from Group IIIA of the Periodic Table or oxides thereof; e) 0 to 20% of at least one element from Group IB or IIB of the Periodic Table or oxides thereof; f) 0 to 20% of at least one element from Group IA or IIA of the Periodic Table or oxides thereof; and g) 0 to 65% of a binder, wherein the components b), c), d), e) and f) are supported on the component a), and contents of at least two of the components b), c), d), e) and f) are larger than zero, is described. A process for preparing said catalyst composition and a process for the production of olefins via catalytic cracking by using said catalyst composition are also described.

Catalytic composition for producing olefins by catalytic cracking

A method for preparation of ethylene and propylene by catalytic cracking using a fluid-bed catalyst. The main technical problems to be solved are a relatively high reaction temperature, and low activities and poor selectivities of the catalyst at a low temperature, during the reaction for preparing ethylene and propylene by catalytically cracking naphtha. The fluid-bed catalyst is a composition of the chemical formula MoVABCObased on stoichiometric ratio. The method using the fluid-bed catalyst has satisfactorily solved the above-mentioned problems, and is useful in the industrial production of ethylene and propylene by catalytically cracking naphtha.

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Shanghai, China

Guangwei Ma