To study the nature of chemical cleavage and resultant product transfer from solid lignite phase to liquid phase, autoclave (300 cm3) experiments have been carried out at pressures ranging up to 34 MPa and temperatures of 380-390ยฐC. The charge to the autoclave was freshly mined wet lignite, tetralin
Solvolysis of a Catalan lignite with solvents of low hydrogen donor capacity
โ Scribed by Azael Fabregat; Jaume Giralt; Francesc Giralt
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 486 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
โฆ Synopsis
The effect of the hydrogen donor capacity of the solvent ~ such as fuel oil, anthracene oil and mixtures of 10, 20 and 30 wt % of anthracene oil in fuel oil -on the solvolysis of a Catalan lignite was studied. Liquid yields of 50 wt % (daf) obtained by solvolysis with fuel oil were increased when the hydrogen donor capacity of the fuel oil was enhanced by the addition of anthracene oil. A linear relation was found between the maximum coal conversion and the anthracene oil content of the mixture. The yield varied exponentially with reciprocal absolute temperature for each solvent mixture studied. A simple kinetic model was fitted to the data and a solid-fuel reaction model put forward.
๐ SIMILAR VOLUMES
The precise Raman linewidths, wavenumber shifts and integrated intensities of the isotropic parts of the Raman spectra in the CyN stretching region 2210-2250 cm-1 were obtained for the m(CyN) stretching mode of acrylonitrile (acryl) in (acryl + phenol) and (acryl + methanol) binary mixtures. The con
Although available literature does not unequivocally establish the presence of open ether bonds (R-O-R) in low-rank bituminous coals, formation of low-molecular-weight products on reacting such coals with hydrogen donors is usually interpreted in terms of scission of ether bridges. This lack of cons