Pyrolysis gasification tar conversion and utilization device and method

Abstract

The invention relates to a pyrolysis gasification tar conversion and utilization device and method. The device comprises a reaction cavity (1), an airflow mixer (2), a heat exchange unit (15) and a deslagging unit (16), The section of the reaction cavity is gradually expanded, and a pore plate (11) is arranged in the reaction cavity and extends downwards along the tube wall of the reaction cavity; A Brown gas channel (12) and a Brown gas nozzle (13) are arranged at the upper end of one side of the reaction cavity; The airflow mixer is arranged below the Brown gas channel and comprises a to-be-treated gas inlet, an oxidant inlet and a mixed gas outlet; A baffle plate (14) is arranged at the rear end of the pore plate and extends downwards along with the pore plate; A heat exchange unit (15) is arranged between the baffle plate and the side wall of the other side of the reaction cavity; And the lower end of the other side of the reaction cavity is connected with a deslagging unit (16). The problem that tar in the pyrolysis gasification gas is not easy to remove and purify can be solved, the tar content of the pyrolysis gasification gas can be reduced, and the energy utilization rate can be increased.

Description

technical field [0001] The invention relates to an industrial gas purification device, in particular to a pyrolysis gasification tar conversion and utilization device and method. Background technique [0002] Pyrolysis gasification (Pyrogasification) technology is a new generation of solid waste disposal technology after landfill, composting and incineration. Pyrolysis refers to the process of using heat energy to destroy the chemical bonds between elements of carbon-containing polymer compounds under anoxic or anaerobic conditions, so that various carbon-containing compounds can be decomposed or chemically recombined. During the pyrolysis process, organic matter will be precipitated. A large number of gaseous combustible gas components, such as carbon monoxide (CO), methane (CH 4 ), hydrogen (H 2 ) and other small molecules or C with slightly larger molecular weight m h n Wait. Gasification refers to the chemical process in which solid or liquid fuel is converted into ...

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Problems solved by technology

[0007] The purpose of the present invention is to provide a pyrolysis gasification tar conversion and utilization device and method, based on a cross-section gradually expanding reaction chamber, using the high temperature environment, water vapor and active substances provided during the Brownian gas combustion process, it can overcome the pyrolysis gas It is difficult to remove and purify the tar in the pyrolysis product, effectively reduce the tar content in the pyrolysis gasification product and improve the energy conversion efficiency of solid waste treatment

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