Mini review on regulation mechanism of the straw one-step pyrolysis for hydrogen production

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy Pub Date : 2025-07-11 DOI:10.1016/j.ijhydene.2025.150190

Zizhao Guo , Zhihao Yu , Wenshen Yang , Lin Lang , Aimin Wang , Xiuli Yin

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Abstract

Straw, as a typical agricultural waste with high production yield and scattered distribution, poses a significant challenge for rapid and centralized treatment. Thermochemical conversion, known for its rapid and efficient processing capabilities, is considered a feasible solution for centralized straw treatment. Pyrolysis for co-production of syngas and biochar is summarized as negative emission technologies (NETs), and is recognized as a promising approach for hydrogen production from straw. However, current research focusing on optimizing the first pyrolysis process (namely primary pyrolysis) remains limited. This study reviews key advancements in process condition optimization and catalyst design for enhancing hydrogen yield. The perspectives of one-step pyrolysis for hydrogen production with negative CO₂ emission are summarized and a new strategy based on low-cost and recyclable biochar catalysts is proposed, aiming to promote the large-scale clean utilization of straw and the efficient production of green hydrogen.

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秸秆一步热解制氢调控机理综述

秸秆作为一种典型的农业废弃物，产量高，分布分散，对其进行快速集中处理是一个重大挑战。热化学转化以其快速高效的处理能力而闻名，被认为是集中处理秸秆的可行解决方案。合成气和生物炭的热解联产技术被概括为负排放技术（NETs），是秸秆制氢的一种很有前途的方法。然而，目前针对第一次热解过程（即一次热解）的优化研究仍然有限。本文综述了提高产氢率的工艺条件优化和催化剂设计方面的主要进展。总结了一步热解制氢负CO2排放的发展前景，提出了一种基于低成本、可循环利用的生物炭催化剂的新策略，旨在促进秸秆的大规模清洁利用和绿色氢的高效生产。

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来源期刊

International Journal of Hydrogen Energy 工程技术-环境科学

CiteScore

13.50

自引率

25.00%

发文量

3502

审稿时长

60 days

期刊介绍： The objective of the International Journal of Hydrogen Energy is to facilitate the exchange of new ideas, technological advancements, and research findings in the field of Hydrogen Energy among scientists and engineers worldwide. This journal showcases original research, both analytical and experimental, covering various aspects of Hydrogen Energy. These include production, storage, transmission, utilization, enabling technologies, environmental impact, economic considerations, and global perspectives on hydrogen and its carriers such as NH3, CH4, alcohols, etc. The utilization aspect encompasses various methods such as thermochemical (combustion), photochemical, electrochemical (fuel cells), and nuclear conversion of hydrogen, hydrogen isotopes, and hydrogen carriers into thermal, mechanical, and electrical energies. The applications of these energies can be found in transportation (including aerospace), industrial, commercial, and residential sectors.