Direct heat recovery of a cogeneration unit saves utilities and reduces emissions

摘要

Refineries are faced with drivers pushing their performance to less emissions and higher utility efficiency.Direct heat recovery of a cogeneration unit,by means of a heat recovery unit (HRU),maximizes the integration potential,resulting in reduced emissions and utility savings.Compared to repowering fired heaters or traditional cogeneration,HRU/HRSG cogeneration saves additional energy,with appropriate emissions reduction,and an improved energy intensity index.Other benefits include improving the refinery's onstream time,reducing fouling/coking and possibly debottlenecking the refinery unit.