超临界水气化制氢耦合金属单质及其氧化物制备的技术探索  

Iechnical Exploration on Preparation of Hydrogen,Metal Elements and Metallic Oxides Simultaneously by Supercritical Water Gasification

作　　者：康浩鹏 徐强[1] 曹泽水 卢煦旸 郭烈锦[1] KANG Haopeng;XU Qiang;CAO Zeshui;LU Xuyang;GUO Liejin(State Key Laboratory of Multiphase Flow in Power Engineering,Xi'an Jiaotong University,Xi'an 710049)

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,西安710049

出　　处：《工程热物理学报》2023年第4期994-998,共5页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.51888103)。

摘　　要：超临界水气化技术(Supercritical Water Gasification,SCWG)作为一种很有竞争力的制氢技术,在“双碳”目标愿景下,积极探索与氢冶金的结合路线具有重要的现实意义。本文提出一种新的技术路线:在同一个反应釜内,超临界水气化制氢的同时,完成金属氧化物的还原,简化冶金流程。从热力学及实验两方面验证了该技术的可行性,在甘油质量浓度2%、5%及10%的超临界水气化氛围下,均能迅速还原制取Fe_(3)O_(4)、Cu及MoO_(2)粉末;在甲酸质量浓度50%、60%及70%下气化均能实现蓝钨(WO_(2.9))、紫钨(WO_(2.72))的制取,且在50%质量浓度下,针状结构明显,较少结块。As a very competitive hydrogen production technology,supercritical water gasification technology has important practical significance in exploring the combination route with hydrogen metallurgy under the carbon peaking and carbon neutrality goals.This paper presents a new technical route:supercritical water gasification for hydrogen production complete the reduction of metal oxide in the same reactor,simplifying the metallurgical process.The feasibility of this technology was verified from thermodynamics and experiment,and Fe_(3)O_(4),Cu and MoO_(2) powders could be rapidly reduced to prepare in supercritical water gasification atmosphere with glycerol mass concentrations of 2%,5% and 10%.Under the mass concentration of formic acid 50%,60%and 70%,blue tungsten oxide and violet tungsten oxide can be obtained by supercritical water gasification,and under the mass concentration of 50%,the needle structure is obvious and less agglomeration.

关 键 词：超临界水 氢气 甲酸 钨 

分 类 号：TF19[冶金工程—冶金物理化学] TK91[动力工程及工程热物理]