Biomass and coal co-pyrolysis reactor

By setting up biomass and coal pyrolysis cylinders and regenerative radiant tubes in the biomass-coal co-pyrolysis reactor, the synergistic pyrolysis of biomass and coal is achieved, solving the problem of insignificant synergistic effect in existing technologies, improving coal pyrolysis conversion rate and product yield, simplifying the process flow and reducing system failure rate.

CN109355069BActive Publication Date: 2026-06-02WUHAN RUNDO BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN201811303134.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2018-11-02
Publication Date
2026-06-02
Estimated Expiration
2038-11-02

AI Technical Summary

Technical Problem

In existing technologies, the synergistic effect between biomass and coal pyrolysis is not obvious, the pyrolysis process is complex, the system failure rate is high, the heating method of the heat carrier poses safety hazards, and the pyrolysis temperature range varies greatly, making it difficult to achieve effective synergy.

Method used

A biomass-coal co-pyrolysis reactor is designed. By setting up a biomass pyrolysis cylinder and a coal pyrolysis cylinder in the reactor, the biomass pyrolysis cylinder is connected below the coal pyrolysis cylinder and has a smaller cross-sectional area than the coal pyrolysis cylinder. Multiple regenerative radiant tubes are used to provide heat sources for both. The gas generated by coal pyrolysis is used as the lifting gas to realize the transfer of hydrogen-rich biomass to the coal pyrolysis process. The synergistic effect is obvious.

Benefits of technology

It simplifies the process flow, reduces the system failure rate, improves the coal pyrolysis conversion rate and target product yield, ensures uniform quality of pyrolysis products, reduces tar dust content, adapts to different coal types, and has a simple structure that facilitates large-scale production.

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Abstract

The application discloses a biomass and coal co-pyrolysis reactor, which comprises a reactor body, wherein the reactor body comprises a biomass pyrolysis cylinder and a coal pyrolysis cylinder which are communicated with each other, the biomass pyrolysis cylinder is connected below the coal pyrolysis cylinder, the cross-sectional area of the biomass pyrolysis cylinder is smaller than that of the coal pyrolysis cylinder, the bottom of the biomass pyrolysis cylinder is provided with a lifting gas inlet, the gas generated by the coal pyrolysis is suitable to enter the reactor body through the lifting gas inlet, the top of the coal pyrolysis cylinder is provided with a product outlet, at least one biomass feeding port is arranged on the side wall of the biomass pyrolysis cylinder, at least one coal feeding port is arranged on the side wall of the coal pyrolysis cylinder, and a plurality of heat accumulating radiation pipes are arranged in the biomass pyrolysis cylinder and the coal pyrolysis cylinder in a spaced mode. According to the biomass and coal co-pyrolysis reactor, hydrogen in the biomass can be easily transferred to the oil gas in the coal pyrolysis cylinder, and the biomass and the coal pyrolysis can reach a synergistic effect.
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