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我厂催化裂化装置为了充分回收再生器顶部排出的烟道气体中的高温热能,设计选用了40GP型烟气轮机增压器(简称增压器)。烟气通过增压器经降温降压进行能量转换以获得高压再生用主风。这样既回收了再生器排放掉的烟气能量、又节省了电动机的耗电量。通过几次较长周期运转效果显著。为保证增压器正常运转,以便回收烟气能量、同时还能使增压后的主风压力达到工艺要求,仪表设计了主风入口流量和主风出口压力的选择性调节方案及维持再生器压力平稳的分程调节方案。这里仅就选择性调节方案介绍如下: 一、工艺简介及选择性调节方案的选择分析自再生器顶部出来的烟道气含有微量的催化剂,经过三级旋分器进行最后工序的旋
In order to fully recover the high-temperature thermal energy in the flue gas discharged from the top of the regenerator, a 40GP gas turbine turbocharger (hereinafter referred to as supercharger) is designed and selected in our catalytic cracking plant. The flue gas is energy-converted by the supercharger through cooling and depressurization to obtain the main air for high-pressure regeneration. This will not only recover the fumes emitted by the regenerator energy, but also save the motor power consumption. Through several longer cycle operation effect is remarkable. In order to ensure the turbocharger normal operation, in order to recover the flue gas energy, but also to make the pressure after the main wind pressure to meet the process requirements, the instrument designed the main wind inlet flow and the main outlet pressure of the selective adjustment program and to maintain the regenerator Stable pressure regulation program. Here only on the selective adjustment programs are described below: First, the introduction of the process and the selection of options to adjust the analysis of the flue gas from the top of the regenerator contains a trace amount of catalyst through the three cyclone for the final process of spin