Recent trends and advances in biogas upgrading and methanotrophs-based valorization

Chemical Engineering Journal Advances

Octavio García-Depraect¹  Raúl Muñoz¹  Sergio Bordel¹  Bibiana Comesaña-Gándara²  Raquel Lebrero²  Fernando Santos-Beneit² 

[1] Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid Spain;Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid Spain;

关键词: Biogas upgrading;    Biomethane;    Bioreactors;    Biorefineries;    Membrane technology;    Metabolic engineering;   

DOI  :  

来源: DOAJ

【 摘 要 】

The global quest for sustainability in industrial activities and waste management has recently boosted biogas production worldwide. However, the rapid decrease in the levelized cost of electricity of renewable energies will soon entail electricity prices from biogas much higher than those from solar or wind power. In this context, the upgrading of biogas into biomethane represents an alternative to on-site biogas combustion. Membrane separation technology is rapidly dominating the biogas upgrading market and displacing scrubbing and adsorption technologies driven by the recent breakthroughs in material science. Similarly, biogas biorefineries have recently emerged as an innovative platform for biogas valorization capable of biotransforming methane into added value products. The limited number of bioproducts naturally synthesized by methanotrophs can be boosted via metabolic engineering of methanotrophs, while novel bioreactor configurations capable of supporting a cost-effective methane mass transfer from the gas phase to the methanotrophic broth are currently under investigation to facilitate the full scale implementation of biogas biorefineries.

【 授权许可】

Unknown