Sustainability assessment of the biomass gasification process for production of ammonia

Pratham Arora, Andrew Hoadley, Sanjay Mahajani

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Researchpeer-review

1 Citation (Scopus)

Abstract

Any technology needs to be environmentally sustainable to be successful. The biomass gasification technology is often perceived to be carbon neutral. However, these perceptions need to be confirmed using a rigorous life-cycle assessment (LCA). This chapter presents a sustainability assessment of the biomass gasification technology for the production of ammonia. Conventional ammonia production that is based on hydrocarbon feedstock is known to be energy-intensive and tends to make a substantial contribution to the global greenhouse gas emissions. Therefore, an environmentally benign feedstock in the form of biomass is proposed as an alternative. Biomass, when used as a feedstock for ammonia production, is expected to yield a considerable reduction in environmental impacts. This chapter undertakes a cradle-to-gate life-cycle assessment (LCA) for ammonia production from biomass through the gasification route. Three different biomass feedstocks, namely wood, straw, and bagasse, are compared for their environmental sustainability by using different environmental indicators. Furthermore, these feedstocks are modeled for cultivation in three different geographical regions. The results suggest that different biomass feedstocks and geographical regions have their own niche environmental advantages. The global warming potential (GWP) for the straw-based ammonia production was found to be close to natural gas-based ammonia production. Contrariwise, 78% reduction in GWP compared to natural gas-based ammonia production is noticed when bagasse is used as a feedstock for ammonia production.

Original languageEnglish
Title of host publicationCoal and Biomass Gasification
Subtitle of host publicationRecent Advances and Future Challenges
EditorsSantanu De, Avinash Kumar Agarwal, V. S. Moholkar, Bhaskar Thallada
Place of PublicationSingapore Singapore
PublisherSpringer Nature
Chapter14
Pages351-367
Number of pages17
Edition1st
ISBN (Electronic)9789811073359
ISBN (Print)9789811073342
DOIs
Publication statusPublished - 2018

Publication series

NameEnergy, Environment, and Sustainability
PublisherSpringer
ISSN (Print)2522-8366
ISSN (Electronic)2522-8374

Keywords

  • Ammonia production
  • Biomass gasification
  • Global warming potential (GWP)
  • Life-cycle assessment (LCA)

Cite this