Chemical storage of wind energy by renewable methanol production: Feasibility analysis using a multi-criteria decision matrix

Michael Matzen, Mahdi Alhajji, Yaşar Demirel

Research output: Contribution to journalArticle

45 Scopus citations

Abstract

This study is for the technoeconomic analysis of an integral facility consisting of wind energy-based electrolytic hydrogen production, bioethanol-based carbon dioxide capture and compression, and direct methanol synthesis. ASPEN Plus was used to simulate the facility producing 97.01 mt (metric tons) methanol/day using 138.37 mt CO2/day and 18.56 mt H2/day. A discounted cash flow diagram for the integral facility is used for the economic analysis at various hydrogen production costs and methanol selling prices. The feasibility analysis is based on a multi-criteria decision matrix consisting of economic and sustainability indicators comparing renewable and non-renewable methanol productions. The overall energy efficiency for the renewable methanol is around 58%. Fixation of carbon reduces the CO2 equivalent emission by around -1.05 CO2e/kg methanol. The electrolytic hydrogen production cost is the largest contributor to the economics of the integral facility. The feasibility analysis based on multi-criteria shows that renewable methanol production may be feasible.

Original languageEnglish (US)
Pages (from-to)343-353
Number of pages11
JournalEnergy
Volume93
DOIs
StatePublished - Dec 15 2015

Keywords

  • CO fixation
  • Electrolytic hydrogen
  • Methanol production
  • Multi-criteria decision matrix
  • Sustainability metrics
  • Technoeconomic analysis

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Pollution
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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