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当前,煤制乙醇、乙二醇、混合醇等已经形成建设热潮,醋酸下游产品开发也进一步扩展,而科研单位、生产企业普遍对生产中所形成的痕量羰基金属、氯等物质会导致催化剂中毒等危害缺乏认识。对此专家建议,深度净化属于煤化工新产品的工艺技术体系,应当引起重视。早关注,早动手,最好能从中试阶段就着手研究脱除工艺。据了解,羰基金属形成于原料气中CO对设备和管道的腐蚀,以及原料气中CO与原料中铁和镍的结合,形成CO金属腐蚀,导致催化剂中毒,活性下降。
At present, coal-made ethanol, ethylene glycol, mixed alcohols and other construction boom has been formed, the development of downstream products of acetic acid has also been further expanded, and research institutes, manufacturing enterprises generally formed in the production of trace amounts of metal carbonyl, chlorine and other substances will lead to the catalyst Poisoning and other hazards lack of understanding. Experts suggest that the depth of purification of coal chemical products belonging to new technology systems, deserve attention. As early concern, early hands, it is best to start from the pilot stage to study removal process. It is understood that the formation of carbonyl metal in the feed gas CO on the corrosion of equipment and pipes, as well as CO in the feed gas and iron and nickel in the raw material to form CO metal corrosion, resulting in catalyst poisoning, decreased activity.