Open AccessA comparative study on targeting CO2 emissions reduction from small-scale utility system
Author(s) -
Ahmed Mahmoud,
Jaka Sunarso
Publication year - 2018
Publication title -
iop conference series materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/429/1/012081
Subject(s) - boiler (water heating) , steam electric power station , boiler blowdown , waste management , steam turbine , flash boiler , steam drum , renewable energy , environmental science , process engineering , feedwater heater , heat recovery steam generator , electricity , engineering , superheated steam , turbine , nuclear engineering , thermal power station , combined cycle , mechanical engineering , electrical engineering , inlet
This study targets CO2 emission reduction from a particular palm oil refinery scenario presented below where medium-pressure (MP) steam and low-pressure (LP) steam are supplied for process heating. Two different utilities configurations, i.e., steam boiler alone and steam boiler followed by steam turbine are evaluated and compared in terms of their CO2 emission reduction target. Steam boiler alone achieved 20.9% CO2 emission reduction compared to steam boiler followed by steam turbine at the same retrofit design with a minimum temperature driving force, ΔTmin of 17 °C. Such emission reduction is still considered attractive on global basis if the required electricity comes from the renewable energy resources.
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