Production of low-pour diesel fuels by hydroisomerization of middle distillates from eastern medium-sulfur crudes

Autor: N. G. Laz'yan, I. P. Kirsanov, A. S. Vitukhina, G. M. Urivskaya, A. V. Agafonov, S. P. Rogov, L. A. Gulyaeva, L. V. Turovskaya
Rok vydání: 1973
Předmět:
Zdroj: Chemistry and Technology of Fuels and Oils. 9:684-688
ISSN: 1573-8310
0009-3092
DOI: 10.1007/bf00749494
Popis: Processes have been developed for catalytic hydrotreating and isomerization of n-paraffins to produce wintergrade diesel fuels from middle distillates. In the single-stage process on sulfur-resistant hydrotreating catalysts promoted with halogens, thorough drying of the feedstock and the hydrogen-rich recycle gas is required, along with promotion of the catalyst with the halogen and protection of the equipment against hydrogen halide corrosion. The yield of winter-grade diesel fuel conforming to specification GOST 305-62 (solid point −35‡C, cloud point −25‡C) is 85% by weight. In the two-stage process, the first stage is a thorough hydrotreating operation, the second stage hydroisomerization of the n-paraffins. The yield of winter-grade diesel fuel conforming to the requirements of GOST 4749-49 (solid point −45‡C, cloud point −35‡C) is 70% by weight. Also formed in the process is some 21–24% naphtha cut with a clear octane number of 76 by the motor method.
Databáze: OpenAIRE
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