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本发明涉及一种二甲醚生产系统低温余热的回收方法,属于工业生产节能、环保、综合利用技术领域。技术方案是:采用低沸点液态工质与二甲醚生产系统的低温反应气换热使低沸点液态工质蒸发为较高压力的工质蒸汽带动发电机做功发电,反应气的热量传递给低温液态工质后温度下降,反应气由温度较高的气态变为温度较低的气液混合物后直接
The present invention relates to a method for recovering low temperature waste heat from a dimethyl ether production system, which belongs to the technical field of energy saving, environmental protection and comprehensive utilization in industrial production. The technical scheme is as follows: the low-temperature reactive gas of the low-boiling point liquid working medium and the dimethyl ether production system is used for heat transfer so that the low-boiling liquid medium is evaporated into the working fluid of higher pressure and the steam drives the generator to generate electricity and the heat of the reactive gas is transmitted to the low temperature After the liquid working fluid temperature drops, the reaction gas from the higher temperature gas into a lower temperature gas-liquid mixture directly