HF反应转炉高温烟道气与精馏、脱气塔余热利用实践

摘要

为了充分利用 HF 转炉高温烟道气的热量，将现有精馏再沸器加热系统进行改造，采用循环热水加热取代原蒸汽加热，循环热水再与烟道气进行热交换，回收利用烟道气的余热，达到节能的效果。余热利用系统改造实施后不仅显著降低装置的蒸汽消耗，同时提高了精馏加热操作的稳定性，大幅延长了再沸器的使用寿命。%In order to make full use of high temperature flue gas heat of the HF reaction furnace, modifying the ex-isting rectifying reboiler heating system, using the circulating hot water heating instead of steam heating, exchang-ing the heat of circulating hot water with the flue gas, using waste heat of flue gas, achieving the goal of energy saving. After the waste heat utilization system modifying, not only reduce energy consumption, but also stabilize the distillation operation and highly prolong the life of the reboiler..