Sulfur rich coal gasification and low impact methanol production

Andrea Bassani, Giulia Bozzano, Carlo Pirola, Caterina Frau, Alberto Pettinau, Enrico Maggio, Eliseo Ranzi, Flavio Manenti

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

In recent times, the methanol was employed in numerous innovative applications and is a key compound widely used as a building block or intermediate for producing synthetic hydrocarbons, solvents, energy storage medium and fuel. It is a source of clean, sustainable energy that can be produced from traditional and renewable sources: natural gas, coal, biomass, landfill gas and power plant or industrial emissions. An innovative methanol production process from coal gasification is proposed in this work. A suitable comparison between the traditional coal to methanol process and the novel one is provided and deeply discussed. The most important features, with respect to the traditional ones, are the lower carbon dioxide emissions (about 0.3%) and the higher methanol production (about 0.5%) without any addition of primary sources. Moreover, it is demonstrated that a coal feed/fuel with a high sulfur content allows higher reductions of carbon dioxide emissions. The key idea is to convert hydrogen sulfide and carbon dioxide into syngas (a mixture of hydrogen and carbon monoxide) by means of a regenerative thermal reactor. This is the Acid Gas to Syngas technology, a completely new and effective route of processing acid gases. The main concept is to feed an optimal ratio of hydrogen sulphide and carbon monoxide and to preheat the inlet acid gas before the combustion. The reactor is simulated using a detailed kinetic scheme.
Original languageEnglish
Pages (from-to)210-226
Number of pages17
JournalJournal of Sustainable Development of Energy, Water and Environment Systems
Volume6
DOIs
Publication statusPublished - 2018

Keywords

  • Carbon dioxide reuse
  • Energy Engineering and Power Technology
  • Environmental Science (miscellaneous)
  • Improved coal gasification
  • Methanol synthesis
  • Renewable Energy, Sustainability and the Environment
  • Syngas from hydrogen sulphide and carbon dioxide emissions
  • Water Science and Technology

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