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美荷型大型化肥厂合成氨装置在钴铂加氢之后都有脱硫设备,用氧化锌脱除天然气或石脑油中的硫。特别是以石脑油为原料的化肥厂,近年来因石脑油中硫含量增高且含砷,对转化触媒活性影响极大,脱硫脱砷已成为新课题。 1988年湖北化肥厂脱硫设备108Db中间筒节纵焊缝熔合线区开裂,经厂和机电部武汉材料保护研究所共同试验分析,认为焊缝熔合线区的开裂属延迟裂纹扩展所致;在挖割缺陷区域时,切块从2米高
US-Dutch large-scale fertilizer plant ammonia plant in the cobalt platinum hydrogenation have desulfurization equipment, zinc oxide to remove sulfur in natural gas or naphtha. In particular, naphtha-based fertilizer plants, in recent years due to increased sulfur content in naphtha and arsenic, has a tremendous impact on the catalytic activity of the conversion, desulfurization and arsenic has become a new topic. 1988 Hubei Fertilizer Plant desulfurization equipment 108Db intermediate tube section vertical weld seam line cracking, the plant and the Electrical and Mechanical Services Department of Wuhan Institute of Materials Protection joint test analysis that the weld seam line cracking is due to delayed crack growth caused by digging Cut the defect area, cut from 2 meters high