摘要
石油化工企业中的设备和管道在每次检维修时都会拆除更换大量的废旧硅酸铝棉保温隔热材料,废旧的硅酸铝棉材料一般按工业固废进行填埋处理,不能从根本上消除其对周边环境和土壤的危害,同时更换新保温材料也会增加企业的成本。通过研究废旧硅酸铝棉的高值资源综合再利用情况,建立了废旧硅酸铝棉及其制品可回用的评价标准,使得废旧硅酸铝棉及其制品降级处理改成制备陶瓷纳米纤维管壳(再用),从根本上解决了废弃保温材料处置难题,提升了资源综合利用效率。该技术已用于某公司炼油厂催化装置中压蒸汽管线的保温材料。检测结果表明,再用陶瓷纳米纤维隔热保温制品降低了材料生产成本,使用性能稳定,平均散热损失优于相应企业标准(116.8 W/m^(2)),完全满足企业现场隔热保温要求。
Petrochemical enterprises often remove and replace a large number of spent aluminum silicate cotton thermal insulation materials in inspection and maintenance of the equipment and pipelines.Spent aluminum silicate cotton materials are generally treated via landfilling as industrial solid wastes,which cannot thoroughly eliminate its harm to the surrounding environment and soil,while replacing insulation materials will also increase the cost of enterprises.Through studying the comprehensive high⁃value reutilization of spent aluminum silicate cotton,the evaluation criteria for the reutilization of spent aluminum silicate cotton and its products are established,by which spent aluminum silicate cotton and its products are downgraded to prepare ceramic nanofiber tube shell(reuse),which thoroughly solves the problem of disposal of spent thermal insulation materials and improves the comprehensive utilization efficiency.This technology has been applied to the thermal insulation material of the medium pressure steam pipeline in the catalytic unit of a refinery.Test results show that the re⁃use of ceramic nanofiber thermal insulation products can reduce the production cost of the material,the re⁃use performance is stable,and the average heat loss is better than the corresponding enterprise standard(116.8 w·m^(-2)),which fully meets the on⁃site thermal insulation requirements of enterprises.
作者
王鑫
WANG Xin(Sinopec Yanshan Petrochemical Company,Beijing 102500,China)
出处
《现代化工》
CAS
CSCD
北大核心
2024年第S01期289-293,共5页
Modern Chemical Industry
关键词
废旧硅酸铝
保温隔热
再利用
spent aluminum silicate
heat preservation and insulation
reutilization
