Study of Diesel Hydrotreating Unit (DHT) in Khartoum Refinery

Abstract

Hydrotreating processes play a vital role in petroleum refineries to meet the increasing demand of transportation fuels, which is the one method of the recent trends in processing of heavier crudes with higher sulfur contents and more stringent products specifications for cleaner transportation fuels. Diesel Hydrotreater unit in Khartoum Refinery Company (KRC) is one of the most important units, which is playing a great role to upgrade the specifications of the diesel fuel. In this unit several kind of treatment process using physical and chemical means ,starts from the filtering through the heat equipments (exchangers ,Furness ), to the reactor then to separation processes . In this research the explanation of the mechanism of hydrotreating process were done showed the specification of the diesel before and after the process then straight forward to the process description followed by material and energy balance of the equipments and a stripper column was designed which is aim to separate the lights from the diesel, then some suggestion were mentioned to overcome the shortage of the presence unit in Khartoum refinery.