A furnace type ammonia decomposition reactor and system

By designing a furnace-type ammonia decomposition reactor and utilizing multi-angle spiral heating and catalyst preheating technology, the problems of uneven ammonia heating and low overall integration in existing reactors have been solved, achieving efficient ammonia decomposition and full utilization of energy.

CN118206071BActive Publication Date: 2026-07-24FZU ZIJIN HYDROGEN POWER TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FZU ZIJIN HYDROGEN POWER TECH CO LTD
Filing Date
2024-03-08
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing ammonia decomposition reactors are characterized by large volume, large catalyst loading, low overall integration, and uneven heating of ammonia gas in the reactor, which affects the ammonia decomposition efficiency.

Method used

The furnace-type ammonia decomposition reactor is designed with multiple ammonia decomposition pipes evenly arranged at the end of the ammonia gas pipeline. Combined with the burner and spiral plate structure, multi-angle spiral heating is achieved. The catalyst is heated by thermal radiation and convection heat transfer. The ammonia gas is preheated before contacting the catalyst, which improves the heating effect and decomposition efficiency.

Benefits of technology

This improved the heating uniformity and decomposition efficiency of ammonia, reduced energy consumption, and enhanced the overall integration and energy utilization of the reactor.

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Abstract

The application discloses a hearth type ammonia decomposition reactor and system, which comprises a furnace body, an ammonia gas pipeline, a plurality of ammonia decomposition pipelines, an exhaust pipeline, an air pipeline and a plurality of burners; the furnace body comprises an annular distribution interval and a combustion hearth, the annular distribution interval is sleeved outside the combustion hearth and is communicated with the combustion hearth, the air pipeline is communicated with the annular distribution interval, and the ammonia gas pipeline is communicated with the furnace body; one end of each of the plurality of ammonia decomposition pipelines is communicated with the ammonia gas pipeline, the other end of each of the plurality of ammonia decomposition pipelines extends into the combustion hearth in a direction close to the combustion hearth and passes through the bottom of the combustion hearth, and the other end of each of the plurality of ammonia decomposition pipelines is communicated with the exhaust pipeline; a plurality of branches are formed in the exhaust pipeline and the combustion hearth is communicated with the burners in the combustion hearth through the plurality of branches. The hearth type ammonia decomposition reactor fully utilizes the energy of the gas itself in the ammonia decomposition and heating combustion process, improves the overall energy utilization rate, reduces the energy consumption of the reactor, and has high overall integration.
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