己内酰胺绿色生产技术

中国石化石油化工科学研究院历经20年,成功开发出己内酰胺绿色生产技术,建成3套20万t/a工业生产装置、多套工业装置正在建设中.己内酰胺绿色生产技术包括:钛硅分子筛与浆态床集成用于环己酮氨肟化合成环己酮肟;纯硅分子筛与移动床集成用于环己酮肟气相重排;非晶态合金催化剂与磁稳定床集成用于己内酰胺精制.工业实施后,装置投资下降70%、生产成本下降10%、原子利用率由60%提高到90%以上、三废排放是已有技术路线的1/200、无副产物硫酸铵.己内酰胺绿色生产技术产生了重大的经济效益和社会效益,践行了绿色化学的理念,是绿色化学的成功范例.

Green production technology of caprolactam

Ideal of green chemistry is the reaction of ＂atom economy＂ and production of environment-friendly green products. This requires that every atom in the raw materials would transfer into the production, no production is of waste and by-products, and no usage of the poisonous and harmful materials. Practice the concept of green chemistry, Research Institute of Petroleum Processing successfully developed the green caprolactam production technology, to construct 200 kt/a plant. The innovation technology includes： TS-1 zeolite integration with single-vessel continuous slurry bed for cyclohexanone ammoximation; silicalite-1 zeolite integration with moving bed for cyclohexanone oxime rearrangement, and amorphous Ni alloy integration with magnetically stabilized bed for purification of caprolactam. Based on the commercial application results, the caprolactam production plant investment decrease 70%, operation costs decrease 10%, atom utilization rate increases to 90% from 60%, and essentially waste-free, respectively. Green caprolactam production technology produces great economic and social benefits, practices green chemistry concepts, and be a successful example of green chemistry.