Steam Methane Reforming(SMR)Combined with Ship Based Carbon Capture(SBCC)for an Efficient Blue Hydrogen Production on Board Liquefied Natural Gas(LNG)Carriers  

作　　者：Ikram Belmehdi Boumedienne Beladjine Mohamed Djermouni Amina Sabeur Mohammed El Ganaoui 

机构地区：[1]Laboratoire des Sciences et Ingénierie Maritimes,Facultéde Génie Mécanique,Universitédes Sciences et de la Technologie d’Oran Mohammed Boudiaf,Oran,31000,Algérie [2]Laboratoire LERMAB IUT Henri Poincaréde Longwy,Universitéde Lorraine,Cosnes et Romain,Longwy,54400,France

出　　处：《Fluid Dynamics & Materials Processing》2025年第1期71-85,共15页流体力学与材料加工(英文)

摘　　要：The objective of this study is to propose an optimal plant design for blue hydrogen production aboard a liquefiednatural gas(LNG)carrier.This investigation focuses on integrating two distinct processes—steam methanereforming(SMR)and ship-based carbon capture(SBCC).The first refers to the common practice used to obtainhydrogen from methane(often derived from natural gas),where steam reacts with methane to produce hydrogenand carbon dioxide(CO_(2)).The second refers to capturing the CO_(2) generated during the SMR process on boardships.By capturing and storing the carbon emissions,the process significantly reduces its environmental impact,making the hydrogen production“blue,”as opposed to“grey”(which involves CO_(2) emissions without capture).For the SMR process,the analysis reveals that increasing the reformer temperature enhances both the processperformance and CO_(2) emissions.Conversely,a higher steam-to-carbon(s/c)ratio reduces hydrogen yield,therebydecreasing thermal efficiency.The study also shows that preheating the air and boil-off gas(BOG)before theyenter the combustion chamber boosts overall efficiency and curtails CO_(2) emissions.In the SBCC process,puremonoethanolamine(MEA)is employed to capture the CO_(2) generated by the exhaust gases from the SMR process.The results indicate that with a 90%CO_(2) capture rate,the associated heat consumption amounts to 4.6 MJ perkilogram of CO_(2) captured.This combined approach offers a viable pathway to produce blue hydrogen on LNGcarriers while significantly reducing the carbon footprint.

关 键 词：Carbon dioxide(CO_(2))emissions blue hydrogen boil-off gas(BOG) steam methane reforming(SMR) ship-based carbon capture(SBCC) 

分 类 号：F42[经济管理—产业经济]