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A kind of catalytic cracking catalyst and its preparation method and application

A catalytic cracking and catalyst technology, applied in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve problems such as large gaps in process conditions, reduce the amount of insoluble matter, reduce the generation of waste residue, reduce The effect of small pollution

Active Publication Date: 2019-07-23
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, studies on the direct liquefaction of plastics and cellulose have found that there is a large gap between the reaction conditions and catalysts required by the two. Directly liquefying waste plastics and cellulose together has a great impact on the types of reactants, reaction conditions, and catalysts. etc. have high requirements, which pose certain challenges to the co-processing of waste plastics and cellulose

Method used

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  • A kind of catalytic cracking catalyst and its preparation method and application
  • A kind of catalytic cracking catalyst and its preparation method and application

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preparation example Construction

[0053] The preparation method of the catalyst 2-A used in the embodiment of the present invention is as follows: 1) roast the original kaolin powder at 430° C. for 6 h, wherein the heating rate to the roasting temperature is 7° C. / min; 2) step 1) after roasting The obtained kaolin is added to the reactor, and then the impregnating solution of dilute hydrochloric acid of ferric naphthenate and molybdenum naphthenate is added to the reactor for supersaturated impregnation. The amount of the impregnation solution is 1.2 times the theoretical amount of saturated adsorbed water. Ethanol solution, wherein the mass fraction of hydrochloric acid is 12%, stirring during impregnation, the stirring rate is 125r / min, and the stirring time is 1.5h; 3) The material after the reaction in step 2) is dried at 130°C for 4h, and then compressed into tablets Forming, sieving, and taking solid particles with a particle size of 40 mesh to 60 mesh as catalyst 2-A, the added materials meet the followi...

Embodiment 1

[0059]Select a total of 2g of a mixture of 50wt% HDPE, 30wt% PET, and 20wt% PS as the raw material for the reaction of waste plastics, add it to the slurry bed catalytic cracking reactor A, and carry out the process under the catalytic action of the HY molecular sieve catalyst. Catalytic cracking reaction, the addition amount of HY molecular sieve is 12% of the total mass of waste plastics, the reaction conditions of catalytic cracking reaction are as follows: the reaction temperature is 445 ° C, the reaction time is 60 minutes, the stirring speed is 440 rpm, the reaction needs to Pass into hydrogen in the catalytic reactor A, the hydrogen partial pressure is 2.6MPa, the product after reaction is separated, obtains liquid product I, gas I and insoluble matter I; After liquid product I is cooled to room temperature, successively pass into tetrahydrofuran, Hexanaphthene solvent carries out extraction, obtains the tetrahydrofuran solution containing liquid product II, the cyclohex...

Embodiment 2

[0062] Just change the reaction conditions of the catalytic cracking reaction carried out in the catalytic cracking reactor A in the slurry bed catalytic cracking reactor A among the embodiment 1: temperature of reaction is 440 ℃, and the reaction times is 140 minutes, and stirring speed is 480 rev / mins, needs in the reaction Pass hydrogen into the slurry bed catalytic cracking reactor A, the hydrogen partial pressure is 3.4MPa, the conditions for the deep catalytic cracking reaction of the slurry bed catalytic cracking reactor C are changed to: the reaction temperature is 580°C, and the reaction time is 70 minutes , Stirring rate 500 rev / min, need in the reaction feed hydrogen in the slurry bed catalytic cracking reactor C, hydrogen partial pressure is 7.1MPa.

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Abstract

The invention discloses a catalytic cracking catalyst as well as a preparation method and an application thereof. The catalyst takes kaolin or montmorillonoid as a carrier and takes molybdenum naphthenate and / or iron naphthenate as an active component. The preparation method comprises steps as follows: kaolin or montmorillonoid raw powder is added to a reactor after being calcined at the high temperature, a diluted acid impregnation liquid of molybdenum naphthenate and / or iron naphthenate is added for impregnation, a reacted material is dried, and the catalytic cracking catalyst is prepared. The catalytic cracking catalyst can be applied to a process for treating cellulose and waste plastic, the total conversion rate of cellulose and waste plastic is increased, a target reaction is promoted, and the liquid yield is increased.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment, in particular to a catalytic cracking catalyst and its preparation method and application. Background technique [0002] The garbage generated by the use of a large number of plastic products not only seriously pollutes the environment, but also causes a waste of resources. At present, the consumption of plastic products is huge, and a large amount of waste plastics are produced every year. However, the recycling and sorting efficiency of waste plastics is generally low, and it is difficult to continuously supply various types of waste plastics. Therefore, it is difficult to form waste plastics separately. Large-scale continuous production. Although the output of cellulose is large, most of it is directly incinerated at present, causing a lot of air pollution and waste of resources. At present, there have been some studies on the liquefaction technology of plastics and the optimal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/04B01J37/02C08B16/00C08J11/16C08J11/26
CPCB01J31/04B01J37/0207C08B16/00C08J11/16C08J11/26Y02W30/62
Inventor 狄佐星罗明生张绍伟
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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