焦炉煤气催化制甲烷和低碳醇研究进展  

Research progress on catalytic methane and low carbon alcoholsproduction from coke oven gas

作　　者：闫小凤 周晗超 闫占辉 齐大超 孟宪光 YAN Xiaofeng;ZHOU Hanchao;YAN Zhanhui;QI Dachao;MENG Xianguang(College of Material Science and Engineering,North China University of Science and Technology,Tangshan 063210,China;College of Yisheng,North China University of Science and Technology,Tangshan 063210,China;Steel Rolling Operation Department of Shougang Jingtang United Iron and Steel Co.,Ltd.,Tangshan 063200,China;Enterprise Management Department of Hebei Wenfeng Industrial Group Tangshan Wenfeng Special Steel Co.,Ltd.,Tangshan 063200,China)

机构地区：[1]华北理工大学材料科学与工程学院,河北唐山063210 [2]华北理工大学以升学院,河北唐山063210 [3]首钢京唐钢铁联合有限责任公司轧钢作业部,河北唐山063200 [4]河北文丰实业集团唐山文丰特钢有限公司企管部,河北唐山063200

出　　处：《洁净煤技术》2024年第4期72-89,共18页Clean Coal Technology

基　　金：唐山市人才资助项目(A202202007)。

摘　　要：冶金煤气是冶金工业产生的气体,处理不当会造成严重的碳排放及空气污染,使钢铁行业碳中和面临巨大挑战。冶金煤气,尤其是其中的焦炉煤气,不仅可作为燃料使用,而且其富含的碳、氢元素是重要的化工资源。通过钢化联产工艺制造化学品实现钢铁行业减排,有望解决温室气体排放、资源浪费、能源消耗和空气污染等环境和能源问题。在催化固碳工艺中,以焦炉煤气催化制甲烷和低碳醇等产品因其过程具有工艺路线短、操作可行性强等优点最受关注。首先介绍了焦炉煤气催化制甲烷和甲醇的工艺条件及反应机理,并介绍助剂和载体等因素对催化剂抗积炭能力及稳定性的影响。其次,强调了构建具有高活性和稳定性的双活性中心对焦炉煤气制其他低碳醇催化剂设计的重要性,并阐述了前体结构和助剂等因素对改性费托合成催化剂和改性甲醇催化剂的影响机制。从反应条件看,甲烷化需较高温度,而制甲醇需较高压力;从工艺复杂程度看,甲烷化最简单,而制甲酸最复杂;从耗氢量看,甲酸不需消耗氢气,而甲烷化耗氢量最大。钢化联产应在综合考虑各种现实因素及产品经济效益的基础上,因地制宜开展催化降碳,不断推动钢化联产技术的创新及清洁能源技术的发展。Metallurgical gas,produced in the metallurgical industry,if mishandled,can lead to serious carbon emissions and air pollution,posing significant challenges for carbon neutrality in the steel industry.Metallurgical gas,especially coke oven gas,serves not only as a fuel but also holds significant chemical resources in its carbon and hydrogen elements.Utilizing co-production processes to manufacture chemicals in the steel industry offers promising solutions to environmental and energy issues such as greenhouse gas emissions,resource wastage,energy consumption,and air pollution.In the catalytic carbon sequestration process,the catalytic production of methane and low-carbon alcohols using coke oven gas has attracted considerable attention due to its advantages in process efficiency and operational feasibility.Firstly,the process conditions and reaction mechanisms for catalytic methane and methanol production from coke oven gas were introduced,along with discussions on the influence of factors such as additives and carriers on the catalyst′s resistance to coking and stability.Secondly,the importance of constructing dual active centers with high activity and stability in the design of catalysts for the production of other low-carbon alcohols from coke oven gas was emphasized,elucidating the impact mechanisms of precursor structure and additives on the modified Fischer-Tropsch synthesis catalysts and modified methanol catalysts.Regarding reaction conditions,methane conversion requires higher temperatures,while methanol production requires higher pressures.In terms of process complexity,methane conversion is the simplest,whereas formic acid production is the most complex.In terms of hydrogen consumption,formic acid production does not require hydrogen consumption,while methane conversion consumes the most hydrogen.Carbon sequestration co-production should be carried out adaptively,considering various practical factors and product economic benefits,to continuously promote catalytic carbon reduction,driving innovation in

关 键 词：焦炉煤气 催化 甲烷 甲酸 甲醇 低碳醇 

分 类 号：TK91[动力工程及工程热物理] TQ519[化学工程]