尿素四改六总结

Summary on Urea Plant Modification “From 4 to 6 ”

简述宁阳飞达化工公司采用中国五环化学工程公司编制的尿素四改六通用设计，介绍了对尿素和合成氨系统进行因地制宜技改的内容和效果。

It introduces the modification of ammonia and urea plant in Ninyang Feida Chemical corp., in which general urea design (called “from 4 to 6 ” designed by CWCEC) is adopted.