Oil agglomeration as a pretreatment for coal liquefaction

Winschel, R.A.; Burke, F.P.

doi:10.1016/0016-2361(87)90136-0

Cited by 11 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the catalytic properties of the mineral matter present in the coal are well known, their removal is desirable because it prevents poisoning of the cata- lysts and reduces mechanical and handling difficulties. 17 However, the presence of pyrite could lead to significant coal conversions in the absence of any external catalyst 18 despite the unsatisfactory quality of the final products. 19 Several studies using demineralized coal can be found in the literature.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Performance of Different Catalysts on the Coprocessing of a Demineralized Catalan Lignite

et al. 1996

View full text Add to dashboard Cite

This work studies the influence of Fe, Fe-Mo, Co-Mo, and Ni-Mo catalysts on the coprocessing of a lignite from the Bergueda `(Catalonia, Spain) with a vacuum residue of petroleum. Given the high mineral matter content of this lignite, it was demineralized to prevent any interference with the catalyst performance. A set of supported Fe-based catalysts as well as two commercial hydroprocessing catalysts were tested. The experimental results show that coal conversion increases with all catalysts, although those containing molybdenum yield the largest values (50-60%). The percentage of iron in the catalyst does not have a strong influence on this conversion, suggesting functional problems. Significantly high coal conversions are also obtained in experiments with alumina (≈40%) or without catalyst (≈44%), suggesting that the demineralization process causes fragmentation of the coal structure. The production of oils is larger with the Mo-based catalysts (19-25%) and on the order of 8% for the Fe-based catalysts.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Although the catalytic properties of the mineral matter present in the coal are well known, their removal is desirable because it prevents poisoning of the catalysts and reduces mechanical and handling difficulties despite the unsatisfactory quality of the final products …”

Section: Introductionmentioning

confidence: 99%