Self-dust-removal type pyrolyzing and cracking tube cracking reactor

Abstract

The invention belongs to the technical field of pyrolyzing and cracking of fossil fuel and in particular relates to a self-dust-removal type pyrolyzing and cracking tube cracking reactor for resources such as oil shale and coal. The self-dust-removal type pyrolyzing and cracking tube cracking reactor is used for preparing combustible gases and semicoke products. Aiming at the defects in the prior art, the invention designs and develops the self-dust-removal type pyrolyzing and cracking tube cracking reactor; a pyrolysis chamber and a cracking chamber are integrally designed in the reactor; oil gas generated by the pyrolysis chamber enters into a particle bed dust removing device; after the oil gas is subjected to dust removal by the particle bed dust removing device, clean oil gas enters the cracking chamber for deep cracking, so that the dust removing pressure at the rear end is reduced; cracking tubes are spirally distributed in the cracking chamber and are distributed around radiant tubes in a zigzag manner; the stay time of the oil gases in the cracking tubes is long, and tar macromolecules are cracked into small molecule gaseous hydrocarbons. According to the reactor, a large amount of cracking gases can be generated, so that the problem that produced pyrolytic tar contains dust is solved, and clean and efficient utilization of the fossil fuel is really realized.

Description

technical field [0001] The invention belongs to the technical field of pyrolysis and cracking of fossil fuels, and specifically relates to a self-dusting type pyrolysis and cracking tube cracking reactor mainly aimed at resources such as oil shale and coal, and is used for producing combustible gas and semi-coke products. Background technique [0002] The world's oil and gas resources are gradually decreasing and increasingly scarce, especially in my country, which must rely on a large amount of imported crude oil, which is related to the issue of national energy security. However, my country has very rich oil shale and coal resources. At present, my country's pyrolysis shale oil production ranks first in the world, and there is a trend of increasing year by year. The existing oil shale and coal pyrolysis furnaces mainly include Fushun Furnace, Sanjiang Gas-fired Square Furnace, Dagong’s Solid Heat Transfer Furnace, Estonia’s Galoter Furnace, Australia’s ATP Furnace and Uni...

AI Technical Summary

Problems solved by technology

The main purpose of the existing pyrolysis furnaces is to produce oil products, but most of the pyrolysis furnaces, especially those that use pulverized coal as raw materials, contain a lot of dust in the pyrolysis oil, which makes it difficult to effectively process the pyrolysis oil. Utilization, the value of pyrolysis oil is not high, etc.

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