Synthesis of methanol from biomass/CO2 resources

Specht, Michael; Bandi, A.; Baumgart, F.; Murray, C.N.; Gretz, J.

doi:10.1016/b978-008043018-8/50114-4

Cited by 24 publications

(35 citation statements)

References 3 publications

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“…The 95 reported well to tank efficiencies for this process are about 51% (related to the lower heating value of methanol). For liquified hydrogen and gasoline this becomes 57.7 % and 89.6% respectively [11].…”

Section: Hydrogen Versus Hydrogen Derived Methanol: Well-to-tank Studymentioning

confidence: 99%

“…According to Specht and Bandi [9] well to wheel GHG reductions of almost 90 90% compared to gasoline are possible using methanol from biomass. Several studies indicate that renewable methanol made in this way would cost about e 400/tonne, which is approximately 50% more expensive than $65/barrel (anno 2009) gasoline on an equivalent energy basis [1,10,11,8]. Hydrogen production through electrolysis is the main factor defining the cost [1].…”

Section: Hydrogen Versus Hydrogen Derived Methanol: Well-to-tank Studymentioning

confidence: 99%

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Comparison of the renewable transportation fuels, hydrogen and methanol formed from hydrogen, with gasoline – Engine efficiency study

Vancoillie

Demuynck

Sileghem

et al. 2012

International Journal of Hydrogen Energy

107

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The use of hydrogen derived methanol in spark-ignition engines forms a promising approach to decarbonizing transport and securing domestic energy supply. Methanol can be renewably produced from hydrogen in combination 10 with biomass or CO 2 from the atmosphere and flue gases. From well to tank studies it appears that hydrogen derived methanol compares favourably with liquid or compressed hydrogen both in terms of production cost and energy efficiency. Since existing well to wheel studies are based on outdated technology, this paper tries to provide efficiency figures for state-of-the-art 15 hydrogen and methanol engines using published data and measurements on our own flex-fuel engine.Both fuels offer a great potential for efficiency improvements compared to gasoline engines thanks to a variety of favourable properties. However, there is a clear distinction between engines specifically designed for hydro-20 gen or methanol operation and flex-fuel engines, which should also run on gasoline. For dedicated engines, the literature indicates that peak brake thermal efficiencies up to 45% and 42% are possible on hydrogen and methanol respectively. The ability to employ qualitative load control instead of throttling enables relative efficiency improvements compared to gasoline between 25 10-20% due to reduced pumping losses in part load. On our flex fuel engine, operation on hydrogen using qualitative load control enabled the highest efficiencies, especially at low loads, where improvements up to 40% relative to gasoline were possible. At elevated loads, rising NO x emissions necessitated a switch to throttled stoichiometric operation, resulting in efficiencies compa- (5-10% relative to gasoline), but can be retained over the entire load range. These improvements are mostly due to reduced pumping losses, increased burning velocities and a slight decrease in cooling losses. Future well-to-wheel studies should take this considerable potential for ef- 35ficiency improvements into consideration and should also distinguish between dedicated and flex-fuel engines.

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Section: Hydrogen Versus Hydrogen Derived Methanol: Well-to-tank Studymentioning

confidence: 99%

Section: Hydrogen Versus Hydrogen Derived Methanol: Well-to-tank Studymentioning

confidence: 99%

Comparison of the renewable transportation fuels, hydrogen and methanol formed from hydrogen, with gasoline – Engine efficiency study

Vancoillie

Demuynck

Sileghem

et al. 2012

International Journal of Hydrogen Energy

107

View full text Add to dashboard Cite

show abstract

“…The amount of gas storage needed is 0.1-0.9 million kg of hydrogen. 7 These figures refer to calculations done where the model only had knowledge of historic electricity prices. If the model is used to optimize production for a given year and the model knows all the electricity prices for that year at the start of the calculations, even greater reductions in cost can be achieved.…”

Section: Electrolysis Of Water and Underground Gas Storage Of Hydrogementioning

confidence: 99%

“…In [8], the biofuel is synthetic natural gas (SNG). In [ [6,7,9], the biofuel is methanol. The plant investigated in [ [6] resembles plant E+B in this paper, and the plants investigated in [7,9] resemble plants E+B and E+B+CCS in this paper.…”

Section: Introductionmentioning

confidence: 99%

“…In [ [6,7,9], the biofuel is methanol. The plant investigated in [ [6] resembles plant E+B in this paper, and the plants investigated in [7,9] resemble plants E+B and E+B+CCS in this paper. However, neither the use of electrolysis together with autothermal reforming of a hydrocarbon feed for syngas production nor the use of gas storage for hydrogen and oxygen in connection with a methanol plant has been investigated.…”

Section: Introductionmentioning

confidence: 99%

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Technoeconomic analysis of a methanol plant based on gasification of biomass and electrolysis of water

Clausen

Houbak

Elmegaard

2010

Energy

147

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Methanol production process configurations based on renewable energy sources have been designed. The processes were analyzed in the thermodynamic process simulation tool DNA. The syngas used for the catalytic methanol production was produced by gasification of biomass, electrolysis of water, CO2 from post-combustion capture and autothermal reforming of natural gas or biogas. Underground gas storage of hydrogen and oxygen was used in connection with the electrolysis to enable the electrolyser to follow the variations in the power produced by renewables.Six plant configurations, each with a different syngas production method, were compared. The plants achieve methanol exergy efficiencies of 59-72%, the best from a configuration incorporating autothermal reforming of biogas and electrolysis of water for syngas production. The different processes in the plants are highly heat integrated, and the low-temperature waste heat is used for district heat production. This results in high total energy efficiencies (~90%) for the plants. The * Corresponding author. Fax: +45 45884325, email: lrc@mek.dtu.dk 1 specific methanol costs for the six plants are in the range 11.8-25.3 €/GJexergy. The lowest cost is obtained by a plant using electrolysis of water, gasification of biomass and autothermal reforming of natural gas for syngas production.

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Methanol Synthesis at a Wide Range of H₂/CO₂ Ratios over a Rh‐In Bimetallic Catalyst

Zou

Zheng

et al. 2020

Angewandte Chemie

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There is increasing interest in capturing H2 generated from renewables with CO2 to produce methanol. However, renewable hydrogen production is expensive and in limited quantity compared to CO2. Excess CO2 and limited H2 in the feedstock gas is not favorable for CO2 hydrogenation to methanol, causing low activity and poor methanol selectivity. Now, a class of Rh‐In catalysts with optimal adsorption properties to the intermediates of methanol production is presented. The Rh‐In catalyst can effectively catalyze methanol synthesis but inhibit the reverse water‐gas shift reaction under H2‐deficient gas flow and shows the best competitive methanol productivity under industrially applicable conditions in comparison with reported values. This work demonstrates a strong potential of Rh‐In bimetallic composition, from which a convenient methanol synthesis based on flexible feedstock compositions (such as H2/CO2 from biomass derivatives) with lower energy cost can be established.

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Synthesis of methanol from biomass/CO2 resources

Cited by 24 publications

References 3 publications

Comparison of the renewable transportation fuels, hydrogen and methanol formed from hydrogen, with gasoline – Engine efficiency study

Comparison of the renewable transportation fuels, hydrogen and methanol formed from hydrogen, with gasoline – Engine efficiency study

Technoeconomic analysis of a methanol plant based on gasification of biomass and electrolysis of water

Methanol Synthesis at a Wide Range of H₂/CO₂ Ratios over a Rh‐In Bimetallic Catalyst

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Synthesis of methanol from biomass/CO2 resources

Cited by 24 publications

References 3 publications

Comparison of the renewable transportation fuels, hydrogen and methanol formed from hydrogen, with gasoline – Engine efficiency study

Comparison of the renewable transportation fuels, hydrogen and methanol formed from hydrogen, with gasoline – Engine efficiency study

Technoeconomic analysis of a methanol plant based on gasification of biomass and electrolysis of water

Methanol Synthesis at a Wide Range of H2/CO2 Ratios over a Rh‐In Bimetallic Catalyst

Contact Info

Product

Resources

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Methanol Synthesis at a Wide Range of H₂/CO₂ Ratios over a Rh‐In Bimetallic Catalyst