Catalytic hydrotreating of coal liquids

✍ Scribed by María T. Martinez; JoséL. Miranda; Roberto Juan

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 443 KB
• Volume: 67
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/0016-2361(88)90036-1

✦ Synopsis

Liquids obtained by direct hydrogenation of a Spanish subbituminous coal have been 'up-graded' by catalytic hydrotreatment.

The catalysts used were a commercially available Ni-Mo catalyst and a nickel hydrous titanate catalyst prepared in this laboratory. Liquid products were analysed for: oil, asphaltene and preasphaltene formation, elemental analysis, boiling range distribution, aromaticity ('H n.m.r. and FT-i.r.) and heteroatom removal. The results indicated that the upgraded liquids exhibited lower aromaticity and lower heteroatoms content than raw liquids. HT-400E catalyst displays the best behaviour, as regards hydrogenation and oil formation.

On the removal of nitrogen and sulphur, both catalysts show a high efliciencv, HT-400E catalyst being more efficient. The utilization of nickel hydrous titanate catalyst produces liquids of lower aromaticity.