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Integrated Process Design and Life Cycle Assessment of Carbon Monoxide Provision from Basic Oxygen Furnace Gas
Author(s) -
Hense Janik,
Bachmann Marvin,
Polte Lukas,
Aßen Niklas,
Jupke Andreas
Publication year - 2022
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.202200029
Subject(s) - greenhouse gas , air separation , environmental science , carbon monoxide , waste management , life cycle assessment , pressure swing adsorption , raw material , renewable energy , process engineering , process (computing) , work (physics) , carbon fibers , adsorption , oxygen , materials science , chemistry , engineering , computer science , catalysis , production (economics) , mechanical engineering , macroeconomics , ecology , biology , operating system , biochemistry , organic chemistry , electrical engineering , economics , composite number , composite material
Vacuum pressure swing adsorption (VPSA) processes are promising separation technologies to recover valuable compounds from industrial off‐gases. In this work, the separation of CO from basic oxygen furnace gas (BOFG) with a three‐bed VPSA process for high‐purity applications using a dynamic process model is analyzed. The analysis evaluates technical operating ranges for providing 99.9 % pure CO and assesses system‐wide environmental impacts using life cycle assessment. The results show that CO from BOFG as feedstock for chemicals reduces greenhouse gas (GHG) emissions by about 10 % for Germany's current grid mix regardless whether the VPSA process operates at maximum productivity (0.18 Nm 3 h −1 kg −1 ads ) or maximum recovery (95.7 %). Further reduction in GHG emissions by up to 68 % can be achieved using renewable energy albeit increasing other environmental impacts such as mineral and metal depletion. Overall, VPSA offers a viable, short‐term solution for providing low‐carbon CO from BOFG.