摘要
从超临界水氧化反应热和能量消耗平衡出发,分析实现能量自补偿式超临界水氧化过程的条件,并应用有机朗肯循环对该反应热进行深度回收,以探索降低其操作费用的途径。采用Aspen Plus软件对苯酚的超临界水氧化过程进行计算,通过计算发现在一定压力条件下,温度对苯酚溶液超临界水氧化中的反应热影响较小,当温度变化较小时可通过计算平均温度下的反应热对超临界水氧化体系反应热进行估算。此外,对能量自补偿式超临界水氧化过程的能量平衡点进行理论分析,在此基础上对带有机朗肯循环的超临界水氧化过程进行能量平衡计算,计算结果表明,当苯酚质量分数大于2%时,可实现能量自补偿过程。
The condition to realize an energetically self-sufficient SCWO process is analyzed based on the balance of SCWO reaction heat and energy consumption. The reaction heat is recovered by means of Organic Rankine Circle, and the ways to reduce the operation cost of the process are discussed. The process of SCWO for phenol is simulated with the Aspen Plus process simulator,and the results show that the influence of temperature on reaction heat is small at a constant pressure. It is reasonable to neglect the effect of temperature and to estimate the heat of reaction with average temperature when the tempera ture changes within a small range. The thermodynamics analysis shows that energetically self-sufficient SCWO process with an Organic Rankine Cycle is an economically feasible technology for commercial development of SCWO, whose energy balance point for phenol is 2% （mass fraction）.
出处
《化学工业与工程技术》
CAS
2009年第1期1-6,共6页
Journal of Chemical Industry & Engineering
基金
辽宁省自然基金(05L029)
