Method for preparing petroleum catalytic cracking catalyst microspheres from coal gangue
A catalytic cracking, coal gangue technology, applied in physical/chemical process catalysts, chemical instruments and methods, catalyst activation/preparation, etc., can solve the problem of high manufacturing cost and achieve the effect of strong market competitiveness
Inactive Publication Date: 2021-03-19
山西晋坤矿产品股份有限公司
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Problems solved by technology
This process is relatively long, and raw materials such as activated alumina and activated silicon are needed, and the manufacturing cost is high.
Method used
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Embodiment Construction
[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than All the embodiments; based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts all belong to the protection scope of the present invention.
[0023] A method of using coal gangue to prepare petroleum catalytic cracking catalyst microspheres. Coal gangue raw ore is crushed, pulverized, pulped, and wet-process ultra-fine grinding to become kaolin slurry, a binder is added, and spray-dried to form microspheres, which enter the kiln Furnace low-temperature calcination is petroleum catalytic cracking catalyst microspheres;
[0024] Specific steps are...
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The invention belongs to the technical field of preparation of catalysts from coal gangue, and provides a method for preparing petroleum catalytic cracking catalyst microspheres from coal gangue. Coalgangue raw ore is subjected to crushing, grinding, pulping and wet ultra-fine grinding to form kaolin slurry, a binder is added, spray drying is performed to generate microspheres, and the microspheres enter a kiln to be calcined at a low temperature to obtain the petroleum catalytic cracking catalyst microspheres. The prepared petroleum catalytic cracking catalyst microsphere is a precursor of acatalytic cracking catalyst. Coal gangue is used as a raw material, and the generated microspheres have certain activity, strength and sphericity requirements. Coal gangue is used as a raw material to directly prepare a catalytic cracking catalyst precursor, and the catalytic cracking catalyst is produced through crystallization, exchange and roasting. The technology breaks through the two-step process of the existing catalytic cracking catalyst, and comprises the following steps: 1, preparing a molecular sieve; and 2, mixing the molecular sieve with washed kaolin or aluminum silicate and other matrix raw materials, and carrying out spray drying to form spheres. The kaolin microspheres have certain strength and meet the requirements of a subsequent crystallization process.
Description
technical field [0001] The invention belongs to the technical field of preparing catalysts from coal gangue, in particular to a method for preparing petroleum catalytic cracking catalyst microspheres from coal gangue. Specifically, it is a method for preparing highly active petroleum catalytic cracking catalyst microspheres from coal gangue, and the microspheres can be used as petroleum catalytic cracking catalysts after being processed by crystallization, exchange, roasting and other processes. Background technique [0002] Kaolin is a non-metallic mineral powder material with unique properties. Its applications include papermaking, rubber, plastics, cables, chemicals, paints and coatings, etc. It plays an important role in the development of modern high-tech industries and the upgrading and progress of traditional industrial products. . Coal gangue is a kind of coal-based kaolin. Its characteristic is that the raw ore itself is dark brown, and its whiteness is higher afte...
Claims
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IPC IPC(8): B01J21/16B01J35/08B01J37/00B01J37/08
CPCB01J21/16B01J37/0036B01J37/08B01J37/0045B01J35/51
Inventor 曹舒雯李亚军尹育华李文杰刘继文任向上解金花冯厚孟金龙朱世海高祥沙叶尹睿麟
Owner 山西晋坤矿产品股份有限公司