氨气提法和二氧化碳气提法尿素生产技术的新进展、比较及评价

New Progress in Technology for Urea Production by Ammonia Stripping and Carbon Dioxide Stripping, their Comparison and Evaluation

通过对氨气提法和二氧化碳气提法的尿素专利商、生产装置的考察，了解到这２种技术近几年来的进展情况，对这２种技术的生产操作、设备材质、投资等诸方面进行了比较，并结合国内生产实际进行评价。

Through an on the spot investigation of urea production units based on the ammonia and carbon dioxide stripping processes and a visit to the process licensors, the advances made in these two processes in recent years are known, and these two processes are compared in terms of production operation, equipment material and investment and evaluated in line with the actual production conditions in China.