Comprehensive utilization method for waste residues and waste liquor generated in catalytic cracking catalyst production

Abstract

A method for comprehensive utilization of catalytic cracking catalyst production waste residue / waste liquid, comprising: (1) pressing dry the waste residue produced by catalytic cracking catalyst production with a plate and frame filter press; (2) combining the filter residue obtained in step (1) with Molecular sieve exchange waste liquid beating, inorganic acid to adjust the pH value of the slurry for preliminary ion exchange; (3) filter the slurry in step (2) through a filter, and rinse the waste liquid with catalytic cracking catalyst; (4) beat (3), Grinding with a wet ball mill; (5) pulping the material obtained in (4), active components, and a binder, gelling, and spray drying to obtain a catalytic cracking catalyst. The obtained catalytic cracking catalyst has high cracking activity and can be used as an auxiliary agent.

Description

technical field [0001] The invention relates to a method for comprehensive utilization of waste residue / wastewater produced in catalytic cracking catalyst production. Background technique [0002] For a long time, catalytic cracking has been an important means of deep processing of heavy oil at home and abroad, and plays a pivotal role in the development of the national economy. As one of the technical cores of catalytic cracking catalysts, the demand for catalytic cracking catalysts is increasing day by day. According to statistics, the domestic demand for catalytic cracking catalysts in 2015 was 200,000-250,000 tons, so the environmental pollution caused by the preparation of catalytic cracking catalysts also caused received widespread attention at home and abroad. [0003] The production of catalytic cracking catalysts includes molecular sieve preparation (ion exchange, hydrothermal calcination, filtration, washing), molecular sieve, carrier, binder mixing into gel, spra...

AI Technical Summary

Problems solved by technology

[0009] CN102896000B provides a method for utilizing catalyst production waste residue, which uses catalyst waste residue as a catalyst filler or carrier to prepare a cracking catalyst. The difference from CN1150301C is that this invention provides a method for using cracking catalyst waste residue to prepare a cracking catalyst active carrier A new method, the active carrier prepared by this method, ultra-stable Y-type molecular sieve, alumina binder and clay beating, spray drying to obtain a cracking catalyst with high cracking activity, good hydrothermal stability, and low yield of dry gas and coke

[0014] At present, in the existing technology, most of the waste residues generated in the catalyst preparation process are used to prepare molecular sieves or as catalyst supports, but there are few studies on the overall reuse of waste residues and wastewater generated in the entire system

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