摘要:

Non-isothermal pyrolysis of two kinds of Fushun oil shale with particle sizes, <0·075 mm, 0·3 - 0·5 mm, 0·75 - 1·0 mm and 1·5 - 2·0 mm, has been investigated in stream (nitrogen) at the flow rate of 100 ml/min by thermo-gravimetric analyzer with a linear heating rate 6·8K/min. It has been found that the temperaturee intervals of oil-generation from rich grade shale ( 9·8 % Fisher Assay oil yield ) and poor grade shale ( 3·9% Fisher Assay oil yield ) with particle size less than 2·0 mm are 400 - 500 °C and 400 - 520° C respectively. The kinetic treatment of the thermo gravimetric data reveals that pyrolytic reactions of the two kinds of Fushun oil shale are both of the first order, but with different activation energy E and pre-exponential factor A in different temperaturee regions during pyrolysis. This is different from what was described in general terms as global first order reaction for oil shale pyrolysis by other anthers. The kinetic parameters for pyrolysis of the two kinds of Fushun oil shale with different particle sizes were calculated by means of least square curve fitting, and the influence of particle size on pyrolysis was also discussed.

ISSN:0884-3759    

DOI:10.1080/08843759508947716

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

Basic data of four fractions, PM1, PM6, PM7and PM8, derived from Pingshuo bituminous coal were obtained by ultimate analyses, mean molecular weight measure, GC/MS,13C-NM R,1H-NM R and FTIR technigues. A method of calculating the average molecular parameters of the fractions is introduced. Based on the calculated parameters, the molecular structure models of the fractions of PM6, PM;and PM8are constructed. Significant structural information about the saturated hydrocarbon and aromatic hydrocarbon with heteroatom groups is given also.

ISSN:0884-3759    

DOI:10.1080/08843759508947717

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

The Makerwal coal of Pakistan gives higher extractibi1ity with Tetrahydrofuran ( THF ) as compared to Sharigh, Sor-Range and Lakhra coals. The structural characterization of Pakistan coal extracts by FT-IR spectroscopy indicates that all the extracts contained less condensed aromatic rings in comparision to their original coal.

ISSN:0884-3759    

DOI:10.1080/08843759508947718

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

Sugar cane bagasse was hydrogenated with monoethanolamine at 370°C under 2000psi of H2for 1h using different catalysts (metallic and zeolitic). The qualitative and quantitative aspects are compared through conversion yields and thermogravimetric and elemental analysis of the liquefield products.

ISSN:0884-3759    

DOI:10.1080/08843759508947719

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

The products obtained from liquefaction of sugar cane bagasse with monoethanolamine were characterized using a variety of methods: elemental analysis and UV-visible, FTIR, H1NMR and C13NMR spectrometries. The oils were separated by conventional solubility techniques and were further fractionated into eight fractions (saturated, monoaromatic, diaromatic, triaromatic and poliaromatic hydrocarbons, resins, asphaltenes and pre-asphaltenes). These fractions were characterized by capillary gas cromatograpy with flame ionization detection and gas chromatography/mass spectrometry. Data obtained from simulated distillation of the oils provided useful information regarding product quality.

ISSN:0884-3759    

DOI:10.1080/08843759508947720

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

Methanol can be converted into gasoline boiling range hydrocarbons over zeolite ZSM-5 catalyst using the Mobil MTG process. Methanol feed in the MTG process can be derived from coal or natural gas based syngas. The Mobil MTG process involves the conversion steps of syngas-to-methanol and methanol-to-gasoline. Dimethyl Ether (DME), a product of methanol dehydrocondensation, is an intermediate species in the methanol-to-gasoline conversion.

ISSN:0884-3759    

DOI:10.1080/08843759508947721

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

MethanoI-to-Gasoline (MTG) process is an excellent process which produces aromatics-rich gasoline from methanol over the ZSM-5 catalyst. The methanol feed in this process is usually derived from coal or natural gas based syngas.

ISSN:0884-3759    

DOI:10.1080/08843759508947722

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

Product oils from the LLNL Hot-Recycled-Solids (HRS) retorting process were separated to isolate and concentrate the metallopetropor-phyrins. A modified column chromatography procedure developed previously for heavy crude oils and tar sand bitumens was used. The fractions were then examined by UV-vis spectroscopy to determine categories of porphyrins and other related metal-containing species.

ISSN:0884-3759    

DOI:10.1080/08843759508947723

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor

摘要:

The 5th International Conference on Stability and Handling of Liquid Fuels was held in Rotterdam, the Netherlands October 3-7,1994. A number of petroleum companies, national petroleum stockpiling agencies, academe, government, research institutes, and additive manufacturers were represented by more than 200 attendees from 28 nations worldwide. The conference was chaired by Harry N. Giles of the U.S. Department of Energy. Fifty-five papers were presented in 12 technical sessions with an additional ten posters included in a separate session. Topics included jet and other middle distillate fuels, microbiology, long-term and strategic storage, expert systems, gasoline, test methods, and environmentally-friendly fuels.

ISSN:0884-3759    

DOI:10.1080/08843759508947724

出版商:Taylor & Francis Group    

年代:1995

数据来源: Taylor