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A kind of catalytic cracking method and catalytic cracking inert carrier aid

A catalytic cracking, inert carrier technology, applied in chemical instruments and methods, physical/chemical process catalysts, hydrocarbon oil cracking, etc., can solve the problems of unfavorable catalytic cracking reaction, increase coke and dry gas, etc., to optimize product distribution, reduce The effect of oil specific coke and olefin product yield improvement

Active Publication Date: 2019-11-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the catalytic cracking waste catalyst contains metal Ni, V and other poisons, which will lead to unwanted side reactions in the catalytic cracking process; coal powder contains a lot of impurities, which is not good for catalytic cracking reaction; amorphous aluminum silicate catalyst will also Increased production of by-products such as coke and dry gas

Method used

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  • A kind of catalytic cracking method and catalytic cracking inert carrier aid
  • A kind of catalytic cracking method and catalytic cracking inert carrier aid

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preparation example Construction

[0052] In the case of satisfying the aforementioned micro-reactive conditions, the present invention has no particular limitation on the composition of the inert carrier auxiliary particle. According to a specific embodiment of the present invention, on a dry basis and based on the total mass of the inert carrier auxiliary particles, the inert carrier auxiliary particles can include 60-100% by mass of silicon dioxide, 0-40% by mass % of titanium dioxide and 0-30% by mass of alumina, preferably including 60-80% by mass of silicon dioxide and 20-40% by mass of titanium dioxide. It should be noted that, unless otherwise specified, the silicon dioxide, titanium dioxide and aluminum oxide mentioned herein all refer to the chemical composition of the inert carrier auxiliary particles, and those skilled in the art can use different catalyst raw materials to prepare the inert carrier Auxiliary particles, the catalyst raw material can include but not limited to silicon dioxide, clay, s...

preparation Embodiment 1

[0079] Silica sol and titanium dioxide powder were mixed in a weight ratio of 3:1, beaten, and then spray-dried. The obtained spray microspheres were dried and then calcined at 900°C to obtain inert carrier additive 1. The properties of the inert carrier auxiliary agent 1 are shown in Table 1. The chemical composition of the inert carrier auxiliary agent 1 is: 60% by mass of silicon dioxide and 40% by mass of titanium dioxide.

preparation Embodiment 2

[0081] Silica sol and titanium dioxide powder were mixed at a weight ratio of 8:1, beaten, and then spray-dried. The obtained spray microspheres were dried and then calcined at 900°C to obtain inert carrier additive 2. The properties of the inert carrier auxiliary agent 2 are shown in Table 2. The chemical composition of the inert carrier auxiliary agent 2 is: 80 mass % silicon dioxide and 20 mass % titanium dioxide.

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Abstract

The invention discloses a catalytic cracking method and a catalytic cracking inert carrier aid. The method includes: sending raw oil into a catalytic cracking device to contact a catalytic cracking catalyst and performing a catalytic cracking reaction under catalytic cracking conditions to obtain a catalytic cracking reaction. Cracking product; wherein, the catalytic cracking catalyst includes inert carrier auxiliary particles and catalytic cracking main catalyst particles, the micro-reaction activity of the inert carrier auxiliary particles is 0-10, and the micro-reaction activity is catalyzed by RIPP 92-90 The micro-reactivity test method of equilibrium catalysts in the cracking industry is measured. The catalytic cracking method of the present invention uses a catalytic cracking inert carrier aid to carry out the catalytic cracking reaction, which can reduce the consumption of catalytic cracking main catalyst particles.

Description

technical field [0001] The invention relates to a method for catalytic cracking and an inert carrier auxiliary agent for catalytic cracking. Background technique [0002] During the operation of the industrial catalytic cracking unit, the raw oil reacts with the catalyst in the reactor to form the target product, and the coke generated during the reaction is deposited on the catalyst, and the active center of the catalyst is covered and loses its activity, forming a raw catalyst; these The raw catalyst is sent to the regenerator to burn off the coke with the oxygen in the air to restore the activity; the heat released by the coke combustion is brought to the reactor by the regenerated catalyst to provide the heat needed by the reactor, and the excess heat is recovered by the heat extraction equipment . [0003] The heat required by the reactor mainly includes the gasification heat of raw oil and the heat of cracking reaction. The gasification heating heat of raw material o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/02B01J35/08B01J21/12B01J21/08
CPCC10G47/02B01J21/08B01J21/12C10G2300/70B01J35/51
Inventor 鲁维民杨克勇张久顺
Owner CHINA PETROLEUM & CHEM CORP
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