大型合成氨装置氢氮比优化控制方案分析与探讨

An Analysis and Discussion on the Optimization Control Strategy Of H-N Ratio in Large Synthetic Ammonia Plant

氢氮比是合成氨装置最为关键的参数之一,保持比值始终处于最佳状态是提高合成氨产量的有效措施。中国石油宁夏石化公司化肥装置在实施该项目时,充分调研,针对目前国内氢氮比优化控制的三种主流方法进行比较。通过对其核心理论的分析,指明各种方案的优缺点,为生产实践奠定了理论基础。

The H-N ratio in the production of synthetic ammonia is one of the most important parameters to increase the product yield which is an efficiency measure to keep the optimal production. In view of the present three main optimization control systems for H-N ration in domestic,we make an analysis and comparison, and point out the advantages and disadvantages for each strategy. By analyzing the core principles of each system, the production principle is confirmed.