摘要:

The dependence of thermophysical properties such as thermal conductivity, thermal diffusivity, specific heat, and dielectric constant on organic content is discussed for oil shales of the Green River Formation. The applicability of thermophysical measurements for assaying and retort diagnostic purposes is also discussed in the light of methods that are currently in use in oil shale science and technology.

ISSN:0090-8312    

DOI:10.1080/00908318108946014

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

Oil sands represent a major world reserve of hydro-carbons. Present processing technology for mined oil sands is based on the hot water extraction process in the only operating plants to date (processing the Athabasca oil sands in Canada). Alternative technologies are of interest, particularly in view of the environmental problems associated with the aqueous effluents of the existing process. As an example of such alternative processes, a solvent extraction flow sheet for the recovery of bitumen from Athabasca oil sands is developed and used as a basis for an economic sensitivity analysis of operating costs and a comparison of the relative significance of process parameters, such as solvent type, solvent:oil sand ratio, solvent recovery efficiencies, etc

ISSN:0090-8312    

DOI:10.1080/00908318108946015

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

Coal is a fuel whose full potential has not yet been exploited in spite of the fact that liquid hydrocarbons have been produced from coal for nearly two centuries. Currently, processes of conversion to liquid fuels are being developed in several countries that will depend on coal as a major source of energy in the near future. Analyses of products of coal liquefaction is needed to assess process efficacy, to understand conversion mechanisms with the purpose of optimizing liquid yields, and to control product quality

ISSN:0090-8312    

DOI:10.1080/00908318108946016

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

A technical and economic evaluation has been made of the possibility of producing gas from agricultural residues on typical farms in western and eastern Canada. A preliminary assessment shows that, as far as the western farm is concerned, the cost of collecting the required residues would be prohibitive in view of the enormous areas involved; in the east, on the other hand, where heating represents a far greater proportion of a farmer's expenses, collection and conversion of the residues to thermal energy would be a relatively minor expense. The study points out the advantages of extracting energy from corncobs for heating greenhouses and drying grain

ISSN:0090-8312    

DOI:10.1080/00908318108946017

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

A technical and economic evaluation of four com-mercially available small coal gasifiers was carried out. All four gasifiers were found to be suitable for producing industrial fuel gas from Canadian lignites in small dedicated plants producing from 2.11 to 31.65 × 1012J/day(2to30 × 109BTU/day). Well-proven technology is available to produce either low heating value gas (air blown) or medium heating value gas (oxygen blown), and in both cases the gas can be cooled and cleaned for applications where contamination of the users' process by impurities in the hot raw gas cannot be tolerated. It was concluded that hot raw, low heating value gas can be produced for approximately $1.90/GJ ($2.00/MMBTU), medium heating value gas for $2.84/GJ ($3.00/MMBTU), and cold, clean, medium heating value gas for $4.50/GJ (4.75/MMBTU) in terms of early 1979 dollars

ISSN:0090-8312    

DOI:10.1080/00908318108946018

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor

摘要:

A comparative technoeconomic evaluation of four types of small industrial coal gasifiers was done in Part I of the paper. Part II covers two case studies involving a cement plant and a steel plant utilizing Wellman-Galusha gasifiers.

ISSN:0090-8312    

DOI:10.1080/00908318108946019

出版商:Taylor & Francis Group    

年代:1981

数据来源: Taylor