A universal gasification furnace coupling plasma and internal joule heat

CN122104297APending Publication Date: 2026-05-29EAST CHINA UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EAST CHINA UNIV OF SCI & TECH
Filing Date
2026-04-24
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing gasifiers have significant bottlenecks in tar removal. Traditional methods cannot effectively reduce tar production, leading to a decline in syngas quality and equipment blockage. Furthermore, they are difficult to adapt to changes in the characteristics of different raw materials and production needs. The preparation of high-temperature reaction gas is unstable, and the system is complex and has high operating costs.

Method used

A gasifier employing coupled plasma and internal Joule heating is used. The material and reaction gas are preheated by a spiral feeder heater. Combined with a plasma torch and an integrated electric heating assembly, a stable temperature field is formed, enabling in-situ pyrolysis of tar and homogenization of syngas. The system efficiency is improved through multi-stage waste heat recovery.

Benefits of technology

It achieves efficient gasification reaction, reduces tar content, improves syngas quality, and increases system thermal efficiency to over 85%, adapting to different raw material characteristics and production demand changes, and reducing operating energy consumption.

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Abstract

The application discloses a universal gasification furnace coupling plasma and internal Joule heat, which comprises a heat exchanger, an input end of the heat exchanger being a gasification furnace body, and an output end of the heat exchanger being connected with a purification system and a spiral feeding heater. The water vapor / carbon dioxide is continuously and stably heated to 700-900 DEG C by the universal gasification furnace, the heating rate is smooth, the temperature control precision is high, and stable gas heat carriers are provided for efficient gasification reaction. The universal gasification furnace is suitable for fixed bed or fluidized bed operation mode, does not need to replace core components, can flexibly cope with different raw material characteristics and production demand changes, constructs a synergistic system of high-temperature heating of reaction gas, coupling of furnace internal plasma and internal Joule heat, can accurately control the furnace temperature field, is suitable for gasification characteristics of multiple solid raw materials such as biomass, coal and organic solid waste, and improves the fullness of the gasification reaction. A multi-stage waste heat recovery unit realizes multi-heat source recovery and utilization of synthesis gas, heater heating and furnace wall heat dissipation, and effectively reduces the operation energy consumption.
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