摘要:

Methanol is one of the basic chemicals which is manufactured at an annual rate of over 10 million tons. Plant capacity for methanol rises and can be greatly increased eventually when using methanol as a fuel. One of the potential future uses of methanol is as a peaking fuel in coal gasification combined cycle power stations (e.g., in integrated gasification combined cycle, IGCC). In this application, methanol would be produced from the CO-rich gas during periods of low power demand. This methanol would be burned, if necessary, as an auxiliary fuel in combined-cycles gas turbines during periods of peak power demand. Methanol is a clean-burning fuel with versatile applications. As a combustion fuel, it provides extremely low emissions. Methanol can also be used as a primary transportation fuel or a fuel additive.

ISSN:0161-4940    

DOI:10.1080/01614949408013929

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

Photochemistry is recognized to be important for various physicochemical processes in the atmosphere, such as formation of the ozone layer and smogs, degradation of waste substances, etc. [1]. However, up to the present the emphasis in atmospheric photochemistry has been mainly on the study of photochemical reactions that occur with molecules directly excited by absorption of light quanta. However, the major components and impurities of the earth's atmosphere (such as nitrogen, oxygen, water, carbon dioxide, methane, methane halides, etc.) are totally transparent to most solar radiation. Electronically excited states of these molecules are formed only upon absorption of vacuum ultraviolet light quanta with energyhv≥ 5 eV (i.e., with wavelength λ ≤ 200 nm). Only a small portion of the energy of solar light is found in this spectral region. In other words, most of the energy of the solar flux cannot participate in such direct photochemical reactions.

ISSN:0161-4940    

DOI:10.1080/01614949408013930

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

The hydrogenolysis of esters to alcohols is a reaction between esters and hydrogen which selectively splits a C-0 bond adjacent to a carbonyl group (1).A well-known large-scale industrial process based on this reaction the production of fatty alcohols from natural fatty acid esters-has been operated commercially for more than 50 years. Several processes which include the hydrogenolysis of an ester have been proposed for the manufacture of basic chemicals such as methanol and ethanol. Furthermore, there has been continuous interest over the past two decades in replacing the existing, energy-intensive processes for the production of ethylene glycol and 1,4-butanedioI by more cost-effective routes involving ester hydrogenolysis.

ISSN:0161-4940    

DOI:10.1080/01614949408013931

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor

摘要:

This is a scanned image of the original Editorial Board page(s) for this issue.

ISSN:0161-4940    

DOI:10.1080/01614949408013928

出版商:Taylor & Francis Group    

年代:1994

数据来源: Taylor