Liquid phase hydrogenation method

Abstract

The invention discloses a liquid phase hydrogenation method. Raw oil (6) undergoes heat exchange by a heat exchanger (2) to the temperature of 260-360DEG C, enters a reaction feeding material heating furnace (3), is heated by the reaction feeding material heating furnace (3) to 280-400DEG C, is sent to a mixing dissolving machine (8) by a hydrogenation feeding material pump (5), and is mixed with cycle oil (12) and hydrogen (7) to form a mixture flow, the mixture flow enters a hydrogenation reactor (10), parts of the resulting reaction effluent are used as the cycle oil (12), and the other parts of the reaction effluent are separated. In the invention, the reaction feeding material heating furnace is replaced by a low pressure furnace, so the investment and operation cost is substantially reduced.

Description

technical field [0001] The invention relates to hydrocarbon oil hydrogenation technology, in particular to liquid phase hydrogenation technology. Background technique [0002] At present, the continuous development of the world economy and the increasingly stringent environmental protection regulations require the production of a large amount of light and clean fuels, which require the improvement and improvement of the existing refining technology to produce products that meet the requirements at the lowest cost. With the increasing shortage of crude oil resources and the development of heavy and inferior crude oil resources, catalytic cracking and coking have become important means of producing light fuel products, but the quality of products obtained by these two processes is generally difficult to meet the strict quality index requirements. In the quality system of light fuel products, sulfur content is the most important indicator. How to reduce the sulfur content in pe...

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Problems solved by technology

DuPont's full liquid phase hydrogenation--DuPont DuPont was published on Docin.com (http: / / www.docin.com) TM clean fuel technology, from which Iso As can be seen in Figure 2 of the reactor system, the heating furnace is set at Iso Before the reactor, the disadvantage is that the equipment such as the reaction feed heating furnace is still high-pressure equipment, and the investment and energy consumption of the device are still relatively large.

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