Abstract：
:Technological solutions to reduce greenhouse gas (GHG) emissions from anthropogenic sources are required. Heavy industrial processes, such as steel making, contribute considerably to GHG emissions. Fermentation of carbon monoxide (CO)-rich off gases with wild-type acetogenic bacteria can be used to produce ethanol, acetate, and 2,3-butanediol, thereby, reducing the carbon footprint of heavy industries. Here, the processes for the production of ethanol from CO-rich off gases are discussed and a perspective on further routes towards an integrated biorefinery at a steel mill is given. Recent achievements in genetic engineering as well as integration of other biotechnology platforms to increase the product portfolio are summarized. Already, yields have been increased and the portfolio of products broadened. To develop a commercially viable process, however, the extraction from dilute product streams is a critical step and alternatives to distillation are discussed. Finally, another critical step is waste(water) treatment with the possibility to recover resources.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Molitor B,Richter H,Martin ME,Jensen RO,Juminaga A,Mihalcea C,Angenent LTdoi
10.1016/j.biortech.2016.03.094subject
Has Abstractpub_date
2016-09-01 00:00:00pages
386-396eissn
0960-8524issn
1873-2976pii
S0960-8524(16)30397-2journal_volume
215pub_type
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