Immobilised sulphur compounds as solid calibrants for TPR
- Strathclyde Univ., Glasgow (United Kingdom). Dept. of Pure and Applied Chemistry
- Oak Ridge National Lab., TN (United States)
- Limburgs Universitair Centrum (Belgium)
Sulphur compounds immobilised on silica are ideal calibrants for TPR (temperature programmed reduction) and should find applications in other techniques, for example, Ledge XANES and temperature programmed oxidation being used to specify organic sulphur forms in coals. The atmospheric pressure TPR traces of the non-thiophenic compounds investigated are dominated by high temperature peaks from secondary reactions which do not appear to be affected by immobilisation on the silica. As a consequence of the high surface coverages used, such reactions are still evident with 150 bar hydrogen although the characteristic reduction temperatures of the non-thiophenic compounds investigated are all below 400{degrees}C and well resolved from that of dibenzothiophene. The high pressure TPR experiments on the immobilised substrates have validated the previous conclusions on coals.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10191239
- Report Number(s):
- CONF-930904-11; ON: DE94000477
- Resource Relation:
- Conference: 7. international conference on coal science,Banff (Canada),12-17 Sep 1993; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
Similar Records
Pyrolysis and hydropyrolysis of diphenylmethane and sulphur-containing compounds immobilised on silica
Reaction of H{sub 2} and H{sub 2}S with CoMoO{sub 4} and NiMoO{sub 4}: TPR, XANES, time-resolved XRD, and molecular-orbital studies