Study on deep purification and resource utilization of CO in tail gas of calcium carbide production
电石生产尾气中CO深度净化与资源化利用技术研究

摘要

电石生产过程中产生的尾气含有大量一氧化碳（CO），若未经处理直接排放，不仅会造成能源浪费，还可能对环境造成不利影响。针对这一问题，开展了CO深度净化与资源化利用技术研究，重点探讨了尾气成分特性、净化原理及工艺优化路径。通过高效吸收、选择性催化转化和膜分离等多种技术的组合应用，可显著降低尾气中杂质含量，实现CO的高纯度回收。该研究不仅提升了CO资源的利用率，同时为清洁能源转化和绿色化工生产提供了技术支撑。研究结果表明，合理配置工艺单元并结合能源回收利用措施，可实现尾气处理的经济性与环保性双重目标。

Abstract

The tail gas generated during calcium carbide production contains substantial amounts of carbon monoxide (CO). Direct discharge without treatment not only wastes energy but also poses environmental risks. To address this issue, this study investigates advanced purification and resource recovery technologies for CO, focusing on analyzing its composition characteristics, purification mechanisms, and process optimization pathways. Through integrated applications of high-efficiency absorption, selective catalytic conversion, and membrane separation techniques, the impurity content in tail gas can be significantly reduced, enabling high-purity CO recovery. This research enhances CO utilization efficiency while providing technical support for clean energy conversion and green chemical production.
Results demonstrate that strategic configuration of process units combined with energy recovery measures achieves dual objectives of cost-effectiveness and environmental sustainability in tail gas treatment.