A Life Cycle Assessment of Biomethane Production from Waste Feedstock Through Different Upgrading Technologies
| Autor: | Sergio Ulgiati, Ciro Florio, Ludger Eltrop, Stefano Dumontet, Joshua Güsewell, Fabiana Corcelli, Gabriella Fiorentino |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Control and Optimization
Biogas upgrading Cogeneration of electricity and heat from biogas Environmental assessment of biomethane production Life cycle assessment Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology Energy (miscellaneous) Electrical and Electronic Engineering 020209 energy 02 engineering and technology 010501 environmental sciences Raw material lcsh:Technology 01 natural sciences biogas upgrading Cogeneration life cycle assessment Biogas Natural gas Bioenergy 0202 electrical engineering electronic engineering information engineering Renewable Energy Engineering (miscellaneous) Life-cycle assessment 0105 earth and related environmental sciences cogeneration of electricity and heat from biogas environmental assessment of biomethane production Sustainability and the Environment Waste management lcsh:T business.industry Renewable energy Pressure swing adsorption Environmental science business |
| Zdroj: | Energies, Vol 12, Iss 4, p 718 (2019) Energies; Volume 12; Issue 4; Pages: 718 |
| ISSN: | 1996-1073 |
| DOI: | 10.3390/en12040718 |
| Popis: | Upgrading consists of a range of purification processes aimed at increasing the methane content of biogas to reach specifications similar to natural gas. In this perspective, an environmental assessment, based on the Life Cycle Assessment (LCA) method, of different upgrading technologies is helpful to identify the environmental characteristics of biomethane and the critical steps for improvement. The aim of this work is to conduct an LCA of biomethane production from waste feedstock, using the SimaPro software. The study focuses on the comparison of several upgrading technologies (namely, membrane separation, cryogenic separation, pressure swing adsorption, chemical scrubbing, high pressure water scrubbing) and the on-site cogeneration of electricity and heat, including the environmental benefits deriving from the substitution of fossil-based products. The results show a better environmental performance of the cogeneration option in most of the impact categories. The Fossil resource scarcity is the impact category which is mainly benefited by the avoided production of natural gas, with savings of about 0.5 kg oil eq/m3 of biogas for all the investigated technologies, with an average improvement of about 76% compared to conventional cogeneration. The results show that the membrane upgrading technology is slightly more environmentally convenient than the other upgrading technologies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|