A method for preparing binary composite catalytic cracking molecular sieve precursor from coal gangue
A catalytic cracking, binary composite technology, applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of high manufacturing costs
Active Publication Date: 2021-08-31
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
[0017] In order to make the purposes, 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, not All the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work, all belong to the protection scope of the present invention.
[0018] A method for preparing a binary composite catalytic cracking molecular sieve precursor by using coal gangue. The coal gangue is ground and calcined to generate spinel-type / mullite-type kaolin powder, which is reconstituted into slurry and mixed with uncalcined kaolin powder. After the coal gangue slurry is mixed in proportion, a binder is added, and microspheres with a certain particle size are formed by spray drying,...
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Abstract
The invention belongs to the technical field of preparing catalysts from coal gangue, and provides a method for preparing binary compound catalytic cracking molecular sieve precursors by utilizing coal gangue. Coal gangue is pulverized, ground, and calcined to produce spinel / mullite kaolin powder, which is remade into slurry, mixed with uncalcined coal gangue slurry in proportion, and then added with a binder. Microspheres with a certain particle size are generated by spray drying, and then calcined at a low temperature to make a catalytic cracking catalyst precursor. Coal gangue is used as raw material to produce a high value-added binary composite active catalytic cracking catalyst precursor by improving the process. The products have strong market competitiveness. On the one hand, it can meet the needs of the catalyst field, and at the same time, it has opened up a new profit growth point for our company, truly realized the transformation of waste into wealth, energy saving and consumption reduction, and brought the high value-added comprehensive utilization of waste coal gangue to a new level.
Description
technical field [0001] The invention belongs to the technical field of catalyst preparation from coal gangue, and particularly relates to a method for preparing a binary composite catalytic cracking molecular sieve precursor by using coal gangue, wherein the coal gangue is hard kaolinite. Background technique [0002] Kaolin is a non-metallic mineral powder material with unique properties and expanding application range. It is widely used in papermaking, rubber, plastics, cables, chemicals, paints and coatings and other fields. plays an important role in. Coal gangue is a kind of coal-based kaolin. Its characteristic is that the original ore itself is dark brown, and the whiteness is high after calcination. and refractory materials. Different processing techniques can endow products with different application functions, and the object of the present invention is to use coal gangue to prepare the binary composite matrix technology of molecular sieve precursor. [0003] The...
Claims
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IPC IPC(8): B01J21/12B01J29/06
CPCB01J21/12B01J29/06
Inventor 曹舒雯李亚军尹育华李文杰刘继文任向上解金花沙叶李璐瑶尹睿麟
Owner 山西晋坤矿产品股份有限公司