Biomass-derived oxymethylene ethers as diesel additives: a thermodynamic analysis

Xiaolei Zhang, Amit Kumar, Ulrich Arnold, Jörg Sauer

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Conversion of biomass for production of liquid fuels can help in reducing the greenhouse gas (GHG) emissions which are predominantly generated by combustion of fossil fuels. Adding oxymethylene ethers (OMEs) in conventional diesel fuel has the potential to reduce soot formation during the combustion in a diesel engine. OMEs are downstream products of syngas, which can be generated by the gasification of biomass. In this research, a thermodynamic analysis has been conducted through development of data intensive process models of all the unit operations involved in production of OMEs from biomass. Based on the developed model, the key process parameters affecting the OMEs production including equivalence ratio, H2/CO ratio, and extra water flow rate were identified. This was followed by development of an optimal process design for high OMEs production. It was found that for a fluidized bed gasifier with heat capacity of 28 MW, the conditions for highest OMEs production are at an air amount of 317 tonne/day, at H2/CO ratio of 2.1, and without extra water injection. At this level, the total OMEs production is 55 tonne/day (13 tonne/day OME3 and 9 tonne/day OME4). This model would further be used in a techno-economic assessment study of the whole biomass conversion chain to determine the most attractive pathways.
LanguageEnglish
Pages1921-1924
Number of pages4
JournalEnergy Procedia
Volume61
DOIs
Publication statusPublished - 2014

Fingerprint

Ethers
Biomass
Thermodynamics
Water injection
Liquid fuels
Soot
Diesel fuels
Gas emissions
Fossil fuels
Gasification
Greenhouse gases
Fluidized beds
Specific heat
Diesel engines
Process design
Flow rate
Economics
Air
Water

Keywords

  • oxymethylene ethers
  • diesel additives
  • biomass
  • Gasification
  • methanol

Cite this

Zhang, Xiaolei ; Kumar, Amit ; Arnold, Ulrich ; Sauer, Jörg. / Biomass-derived oxymethylene ethers as diesel additives : a thermodynamic analysis. In: Energy Procedia. 2014 ; Vol. 61. pp. 1921-1924.
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Biomass-derived oxymethylene ethers as diesel additives : a thermodynamic analysis. / Zhang, Xiaolei; Kumar, Amit; Arnold, Ulrich; Sauer, Jörg.

In: Energy Procedia, Vol. 61, 2014, p. 1921-1924.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Biomass-derived oxymethylene ethers as diesel additives

T2 - Energy Procedia

AU - Zhang, Xiaolei

AU - Kumar, Amit

AU - Arnold, Ulrich

AU - Sauer, Jörg

PY - 2014

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AB - Conversion of biomass for production of liquid fuels can help in reducing the greenhouse gas (GHG) emissions which are predominantly generated by combustion of fossil fuels. Adding oxymethylene ethers (OMEs) in conventional diesel fuel has the potential to reduce soot formation during the combustion in a diesel engine. OMEs are downstream products of syngas, which can be generated by the gasification of biomass. In this research, a thermodynamic analysis has been conducted through development of data intensive process models of all the unit operations involved in production of OMEs from biomass. Based on the developed model, the key process parameters affecting the OMEs production including equivalence ratio, H2/CO ratio, and extra water flow rate were identified. This was followed by development of an optimal process design for high OMEs production. It was found that for a fluidized bed gasifier with heat capacity of 28 MW, the conditions for highest OMEs production are at an air amount of 317 tonne/day, at H2/CO ratio of 2.1, and without extra water injection. At this level, the total OMEs production is 55 tonne/day (13 tonne/day OME3 and 9 tonne/day OME4). This model would further be used in a techno-economic assessment study of the whole biomass conversion chain to determine the most attractive pathways.

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KW - methanol

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