97/01511 Energy producing chemical coal processing, 1. Complex coal treatment to produce coke, methanol and energy: Calculation and analysis of schemes

• Publisher: Elsevier Science
• Year: 1997
• Weight: 195 KB
• Volume: 38
• Category: Article
• ISSN: 0140-6701
• DOI: 10.1016/s0140-6701(97)84320-2

✦ Synopsis

15 Fuel science and technology (fundamental science, analysis, instrumentation) distributions provided a more detailed picture of the behaviour of individual droplets. The results are compared with data for a non-swirling kerosene spray for the same conditions of fuel and air flow rates.

97101498

Catalytic decomposition of gasification gas tar with benzene as the model compound Simell, P. A. et al. Ind. Eng. Chem. Res., 1997, 36, (l), 42-51. In this study tar decomposition over a dolomite catalyst in gasification conditions was modelled by benzene's reaction with COZ. Kinetic studies were carried out at 1023-1173 K and ambient pressure in a plug flaw reactor.

Langmuir-Hinshelwood type mechanistic models describing benzene decomposition were derived and tested.

97101499

Characterization of coal dissolution products obtained at low temperatures Ashida, S. et al. Sekitan Kagaku Kaigi Happy0 Ronhunshu, 1995, 32, 180-183 (In Japanese). Coal dissolution was carried out in several hydrogen donor solvents or Nmethyl-2-pyrrolidinone (NMP) at low temperatures (175%300°C) under N without a catalyst. 1, 4, 5, 8, 9, IO-Hexahydroanthracene (HHA), which is a strong hydrogen donating solvent and NMP were found to give high dissolution yields even at such low temperatures

In the case of HHA, the quantities of hydrogen transferred from the solvent to a coal correlated well with the dissolution yields. For both cases of HHA and NMP, the dissolution reaction products were characterized to elucidate their dissolution mechanisms.