Foreword, by Philip L. Kohl

Kohl, Philip L.; Koryakova, Ludmila; Epimakhov, Andrej

doi:10.1017/cbo9780511618451.001

Cited by 6 publications

(10 citation statements)

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“…At the daily village level of barter, trade, and neighborly negotiation, political power would only be invoked to resolve disputes. Otherwise the exchange of goods could have been among equals (Kohl, Philip L,;Rita P. Wright 1977). 39 The informal culture governing these exchanges did not arise out of a vacuum.…”

Section: The Division Of Labor and Hierachy Within Core Areasmentioning

confidence: 99%

Evolution and World-Systems: Complexity, Energy, and Form

Grimes¹

2017

JWSR

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Section: The Division Of Labor and Hierachy Within Core Areasmentioning

confidence: 99%

Evolution and World-Systems: Complexity, Energy, and Form

Grimes¹

2017

JWSR

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“…The equilibrium concentration of the absorbing agent in the liquid phase is strongly dependent on the partial pressure of that component in the gas phase. The advantage of using such solvents is that these gases can be separated from them in the regenerator by reducing the pressure, resulting in much lower energy consumption losses 7) . …”

Section: Simulation Of Physical Solventmentioning

confidence: 99%

“…The chemicals commercially used for acid gas removal are monoethanolamine (MEA) and methyldiethanolamine (MDEA) for chemical absorption and dimethylether of polyethylene glycol (DMPEG) or Selexol for physical absorption process 7) . The molecular structures of MEA and MDEA are shown in Table 1.…”

Section: Introductionmentioning

confidence: 99%

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Removal of Acid Gases from Biomass-to-Liquid Process Syngas Used as Raw Materials for Fischer-Tropsch Technology

Maneeintr

Luemunkong

Charinpanitkul

2014

J. Jpn. Inst. Energy

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Due to the high energy consumption and decreasing oil supply, the alternative energy sources such as biomass and agricultural waste can be considered as the main sources of energy in the future. Currently, one of the technologies to convert such biomass to more valuable products is biomass-to-liquid process. However, acid gases like CO 2 and H2S are produced as intermediates causing the decrease in product heating values, operational problems, corrosion, and environmental concern. Therefore, the objective of this work is to simulate the absorption process of acid-gas cleaning by using various solutions at different operating conditions in order to meet the requirement. The results show that MDEA has higher performance to remove both gases compared to other chemicals. Furthermore, at 0.9 MPa and 25 °C, the treated gas provides 3.19 vol% CO 2 and 27.7 ppb of H2S for MEA, 2.13 % CO2 and 0.02 ppb of H2S for MDEA and 7.45 % CO2 and 1.12*10 -6 ppb of H2S for Selexol. Moreover, the liquid flow rate, solution concentration and effects of temperature and pressure are also investigated for the optimal design of the absorption column.

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“…Processes capable of producing a purified synthesis gas with less than 0.1 ppmv total sulfur and with CO 2 levels in the ppmv range have been demonstrated. Chemical (adsorption) and physical (absorption) solvent-based processes are proven clean gas technologies that are commercially available [30][31][32].…”

Section: Electrode Poisoning/deactivationmentioning

confidence: 99%

(Invited) Coal and Biomass Utilization in Solid Oxide Fuel Cells

Mitchell¹

2012

ECS Trans.

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Coal is used for generating electricity and it will continue to be used in this manner until non-fossil fuel based power generation technologies are commercially proven. Since carbon dioxide, a greenhouse gas, is a main product of the conversion process, it is prudent to develop technologies that facilitate its removal from exhaust streams before it is released to the atmosphere. The development of solid oxide fuel cells is a step in this direction. Converting coal or biomass to electricity in an electrochemical scheme is a more energy efficient process than converting these fuels to electricity in either a combustion or integrated gasification combined cycle scheme. The coal conversion process most compatible with SOFC applications is gasification. In this paper, issues associated with integrating gasification and SOFC technologies for power generation is discussed with attention given to syngas composition and the formation of species that have adverse impact on SOFC performance.

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Foreword, by Philip L. Kohl

Cited by 6 publications

References 0 publications

Evolution and World-Systems: Complexity, Energy, and Form

Evolution and World-Systems: Complexity, Energy, and Form

Removal of Acid Gases from Biomass-to-Liquid Process Syngas Used as Raw Materials for Fischer-Tropsch Technology

(Invited) Coal and Biomass Utilization in Solid Oxide Fuel Cells

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