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中文摘要：
柴油加氢过程在高温高压条件下反应而产物又需要冷却到常温,因此换热网络的合理性将直接关系到能量和经济效益。本文应用Aspen Energy Analyzer软件对某柴油加氢工艺流程进行分析,得出节能潜力为11166 kW,并在以总复合曲线为工具进行分析的基础上,具体给出两种优化方案。经过对两方案的能量和经济性能进行分析发现,最大热回收方案的损较大,但设备投资较少;而副产蒸汽方案的能量利用更合理,但投资费用略多。
英文摘要：
Diesel hydrotreating process reacts at high temperature and pressure conditions and the product needs to be cool down. Therefore the reasonableness of the heat exchanger network will be directly related to the energy and economic performances. By using Aspen Energy Analyzer to analyze a certain Diesel Hydrotreating process, the energy saving potential is obtained which is 11166 kW. Based on the shape of the Grand Composite Curve, two optimization schemes are proposed. The scheme of maximurn heat recovery has less investment, but a lager exergy loss; and the scheme of by-producing stream is more reasonable in energy utilization, but slightly more investment cost.
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