Hydrogen-oxygen environment isolation system suitable for chemical looping hydrogen production and oxygen carrier isolation and feeding method

By setting up a hydrogen-oxygen environment isolation system in the chemical loop hydrogen production unit, and utilizing pressure balance and automated control technologies, the continuity and safety issues of the hydrogen-oxygen isolation system were solved, achieving stable delivery of oxygen carriers and improved product purity.

CN122399677APending Publication Date: 2026-07-17CHINA SCI GRP HLDG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA SCI GRP HLDG
Filing Date
2026-05-07
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing chemical loop hydrogen production devices suffer from problems such as gas cross-contamination, poor continuity, and nitrogen leakage diluting the products. Furthermore, they cannot effectively prevent hydrogen from mixing with air and causing explosions or cross-contamination of the products, which could affect product purity.

Method used

A hydrogen-oxygen environment isolation system is adopted, including a separation unit, a connection unit, and a buffer unit. The oxygen carrier is isolated, connected, and transported between the reduction reaction system and the oxidation reaction system through a pressure balance pipeline and control valves. Combined with pressure transmitters and level sensors, automated control is carried out to ensure pressure balance and continuous material transportation.

Benefits of technology

It achieves effective isolation of hydrogen and oxygen environments, avoids the safety risks of hydrogen mixing with air, improves the continuity of oxygen carrier delivery and product purity, reduces maintenance costs and operational difficulty, and is suitable for high-temperature and high-dust operating conditions in chemical chain hydrogen production systems.

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Abstract

本申请涉及一种适用于化学链制氢的氢氧环境隔离系统及氧载体隔离输料方法,其中氢氧环境隔离系统设置在还原反应系统与氧化反应系统之间,供氧载体在两个系统之间隔离衔接输送,所述氢氧环境隔离系统包括依次设置的分离单元、衔接单元、缓冲单元,以及输料管道;所述分离单元、所述衔接单元、所述缓冲单元之间设置有气压平衡管线,所述气压平衡管线连接有充压管线及泄压管线,用于供惰性气体在衔接单元前 / 后相通且相对另一单元隔离的气压平衡;所述控制阀门及所述输料阀能够进行氧载体在两两单元之间的批量输料。本申请能够有效防止氢气与空气混合引发爆炸,避免气体交叉污染影响产物纯度。
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