Downer rapid catalytic pyrolysis reactor

A catalytic pyrolysis and reactor technology, applied in the field of coal chemical industry, can solve the problems of high pressure in purification process, large gas consumption of gas heat carrier, complicated process of solid heat carrier method, etc., and achieve the effect of avoiding heat transfer efficiency and avoiding coking.

Active Publication Date: 2016-04-20
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current fast pyrolysis technology is mainly based on gas heat carrier and solid heat carrier. Among them, the gas heat carrier consumes a lot of gas, the pyrolysis gas is diluted and lost, the subseq

Method used

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  • Downer rapid catalytic pyrolysis reactor
  • Downer rapid catalytic pyrolysis reactor
  • Downer rapid catalytic pyrolysis reactor

Examples

Experimental program
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Effect test

Embodiment

[0064] The down-bed fast catalytic pyrolysis reactor is used to process Indonesian lignite. The basic data and pyrolysis products of raw materials are shown in Table 1 and Table 2.

[0065] Start feeding Indonesian lignite with a particle size of ≤1mm through a screw feeder. At the same time, an iron oxide catalyst with a mass fraction of 3% relative to the Indonesian lignite and a particle size of less than 0.5mm is injected from the wind cap to make it uniformly mixed and distributed. The mixture passes through each layer in turn The radiant tube heats up quickly for catalytic pyrolysis, and the stirring device rotates at a frequency of 15Hz. The temperature of the upper two layers of radiant tubes is 650℃, and the temperature of each lower layer is 550℃; the steam generator produces steam at 300℃, and two oil and gas The outlets are switched alternately, switching once every 120s; the pyrolyzed oil and gas produced in the reaction are exported to the gas collector through the o...

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Abstract

The invention provides a downer rapid catalytic pyrolysis reactor. The reactor is provided with a material inlet, oil gas outlets and a semi-tar outlet; the semi-tar outlet is formed in the bottom of the reactor, the material inlet is formed in the center of the top of the reactor, and the oil gas outlets are formed in the side wall of the reactor. The reactor further comprises a catalyst conveying pipe, radiant tubes, oil gas output pipes, gas collection pipes and a stirring device, wherein the catalyst conveying pipe extends into the reactor through the side wall of the reactor; the radiant tubes are arranged into multiple layers in the height direction of the reactor; the oil gas output pipes are arranged into multiple layers in the height direction of the reactor, and multiple oil gas output pipes which are parallel to one another in the horizontal direction are arranged on each layer; the oil gas output pipes are communicated with the gas collection pipes, and the gas collection pipes are communicated with the oil gas outlets; the stirring device comprises a stirring shaft and multiple stirring rods connected to the stirring shaft. By means of the downer rapid catalytic pyrolysis reactor, pyrolysis efficiency can be improved, and the tar yield can be raised.

Description

Technical field [0001] The invention belongs to the field of coal chemical industry. Specifically, the invention relates to a descending bed rapid catalytic pyrolysis reactor. Background technique [0002] my country is a country rich in coal, short of oil, and low in gas. The characteristics of my country's energy structure determine that its energy is mainly coal resources. According to related reports, medium and low-rank coals account for more than 55% of my country’s proven coal resources. At the same time, low- and medium-rank coals are rich in oil and gas resources. Direct combustion not only causes energy waste, but also causes environmental pollution, so how to effectively The use of low- and medium-rank coal can not only improve my country's energy structure and alleviate the problem of energy shortage, but also has great economic value. [0003] At present, the existing technologies for processing low- and medium-rank coals on the market mainly include direct combustion,...

Claims

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Application Information

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IPC IPC(8): C10B53/04C10B47/22C10G1/00
CPCC10B47/22C10B53/04C10G1/00
Inventor 赵延兵陈水渺姜朝兴薛逊吴道洪
Owner SHENWU TECH GRP CO LTD
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