Hydrogenation of coal possessing chemically bonded metals and the use of polystyrene as a model
β Scribed by Michael V. McCabe; Milton Orchin
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 442 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0016-2361
No coin nor oath required. For personal study only.
β¦ Synopsis
By applying known techniques for preparing polystyrene-bound transition metal catalysts, both cobalt and tin complexes have been attached to bituminous coal via the metal atoms. Samples possessing the same metals physically adsorbed on the coal were also prepared. All samples were treated at 390Β°C under 13.8 MPa (2000 psi) hydrogen pressure. The metal-bound coal samples gave better liquefaction with less hydrogen consumption than was observed with the samples incorporating adsorbed metals. In order ultimately to provide more information on the role and fate of catalysts in coal hydrogenation, cross-linked polystyrene has been used as a model substrate.
π SIMILAR VOLUMES
The effect of particle size in high-impact polystyrene (HIPS) is difficult to determine because of a size polydispersity and changes in particle morphology during the HIPS synthesis process. In this study, poly ( n -butyl acrylate) rubber core/polystyrene shell particles were made by emulsion polyme
dence and concluded that this showed that the poorer perfor-The mechanism of bleaching cotton dyed with the reactive dye mance of hydrogen peroxide at low temperatures is only a 5-(4,6-dichlorotriazinyl)aminofluorescein has been investigated kinetic phenomenon, and given longer reaction time, good u
Cyclohexane-based polyaminopolyalcohols (PAPAs) such as 1,3-diamino-1,2,3-trideoxy-cis-inositol (daci) have been prepared by hydrogenation of suitable aromatic precursors. The pentanuclear complex [Cu 5 (daci) 4 (H -2 daci) 2 ](SO 4 ) 3 β’18H 2 O (C3) revealed antiferromagnetic and ferromagnetic inte