Hydrocracking of Vacuum Gas Oil: Conversion, Product Yields, and Product Quality over an Industrial Hydrocracking Catalyst System

CATEGORY: VGO - VACUUM GAS OIL
Petroleum Science and Technology, Volume 31, Issue 6, 2013, pages 551-562, DOI:10.1080/10916466.2010.516296
Hydrocracking of Vacuum Gas Oil: Conversion, Product Yields, and Product Quality over an Industrial Hydrocracking Catalyst System
G. Valavarasua & B. Sairamb
a R&D Centre, Hindustan Petroleum Corporation Limited, Whitefield, Bangalore, India
b R&D Centre, Chennai Petroleum Corporation Limited, Manali, Chennai, India
Abstract
Vacuum gas oil fraction obtained from a refinery crude distillation unit was employed to conduct pilot plant experiments were conducted over an industrial hydrotreating/hydrocracking catalyst system. Researchers generated extensive pilot plant data on the performance of industrial hydrocracking catalyst system with respect to conversion, product yields, and product quality at various operating conditions. They conducted the pilot plant experiments in a dual-reactor hydrotreating pilot plant system with downflow mode of operation.
The temperature varied from 360 to 400°C and liquid hourly space velocity varied from 0.8 to 2.4 hr⁻¹, keeping a constant pressure of 170 kg/cm² and H₂/HC feed ratio of 845 L/L. The hydrocracked total liquid product was distilled in a true boiling point distillation unit to obtain yields and qualities of different fractions such as naphtha, kerosene, diesel, and unconverted oil. Authors provide a detailed description of the effect of operating conditions on the performance of the hydrocracking catalyst system.
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