A techno-economic assessment for optimizing methanol production for maritime transport in Sweden

Davide Conti, Fumi Harahap, Semida Silveira, Annukka Santasalo-Aarnio

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

The maritime transport sector is currently highly dependent on oil-based fuels. International regulations enforce tight limits regarding NOx emissions from the exhaust gases and maximum sulphur content in the fuel, enhancing the sector interest towards the development of cleaner alternative fuels. A transition to biomass-based liquid fuels is of interest as a common solution for reducing pollutant emissions and for CO2 emissions mitigation. In this paper, a case study on Sweden analyses the potential of methanol production, using gasification of woody residues from sawmills to cover domestic and international maritime energy demand. Methanol seems to be a promising alternative to heavy and light fossil oils as maritime fuel, and sawmills residues are an abundant resource in Sweden. The study considers the entire methanol production chain, starting by assessing the availability of sawmill by-products and ending with the energy demand of final users, identified as the Swedish ports. The analysis considers two scenarios until year 2035, assuming different share of energy demand covered by methanol. When considering the production and use of biofuels, the cost for transportation of the feedstock and the final product have a great impact on the final cost. An optimization model is used to locate the methanol production plants, so to minimize the cost of the production chain. Four possible plant sizes are considered, 100, 200, 300 and 400 MW of biomass fuel thermal input. The production plant is modelled to determine the material and energy streams involved in the process and to obtain the cost and efficiency of producing methanol at the synthesis plant. The results include the final methanol cost and an estimation of the CO2 emissions reduction potential from replacing oil fuels with methanol for the assumed scenarios.

Original languageEnglish
Title of host publicationECOS 2019 - Proceedings of the 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
EditorsWojciech Stanek, Pawel Gladysz, Sebastian Werle, Wojciech Adamczyk
Pages4703-4712
Number of pages10
ISBN (Electronic)9788361506515
Publication statusPublished - 1 Jan 2019
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems - Wroclaw, Poland
Duration: 23 Jun 201928 Jun 2019
Conference number: 32

Publication series

NameECOS 2019 - Proceedings of the 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
Volume2019-June

Conference

ConferenceInternational Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
Abbreviated titleECOS
Country/TerritoryPoland
CityWroclaw
Period23/06/201928/06/2019

Keywords

  • Gasification
  • Maritime Transport
  • Methanol
  • Sweden
  • Woody Biomass

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