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Crude oil full-fraction one-stage reduced pressure distillation process

A whole distillate and crude oil technology, which is applied in the field of hydrocarbon oil distillation, can solve the problems of high energy consumption and complicated process flow, and achieve the effects of high heat exchange efficiency, advanced technology, and easy separation

Inactive Publication Date: 2005-12-21
周衍亮
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AI Technical Summary

Problems solved by technology

The disadvantage of distilling crude oil in this way is that the process is complicated and the energy consumption is high

Method used

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  • Crude oil full-fraction one-stage reduced pressure distillation process

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Embodiment Construction

[0016] Crude oil is firstly desalted and dehydrated and then heat-exchanged to 280-300°C before entering the initial distillation tower 1. Straight-run gasoline or reforming raw materials can be obtained at the top of the initial distillation tower. 200# solvent oil side line or kerosene side line can be set up on the side of the tower according to needs 2. The oil extracted from the bottom of the initial distillation tower 1 enters the heating furnace 3, and after being heated to 400-410° C., it is sent into the vacuum tower 5 for vacuum distillation. No product is produced at the top of the decompression tower, and the top of the decompression tower is directly connected with the vacuum equipment 10 . A top circulation reflux system 11 and a middle section circulation reflux system 4 are respectively arranged at the top position and the middle position of the decompression tower 5 . The purpose of the circulating reflux system is to balance the load in the decompression tow...

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Abstract

This is a kind of base oil full-range fraction - segment vacuum distillation craft, belonging to petroleum processing craft field. After processed by desalinization and dehydration, the base oil is heated to certain temperature, then gets into primary tower; the oil shares at the bottom of the primary tower finally get into vacuum tower after heated by heating furnace. Its characteristics are: the base oil gets into primary tower after desalinized, dehydrated, and heated to 280 -300 Deg. C, the oil shares elicited from the bottom of the primary tower gets into the vacuum tower after heated by the heating furnace, and separates diesel oil on the vacuum tower. The craft of the invention deletes the atmospheric distillation system in traditional craft, so it saves a set of atmospheric pressure operating system, and compared with traditional craft, it saves much device investment; it has advantages as simple flow, high product flowing rate, small heat exchange equipment and high heat exchange efficiency; the operation situation of the invention indicates that the craft is advanced, operates well, electric power and fuel oil waste is 10% lower than traditional craft, and has remarkable economic benefit, so it is a new technology valuable to promote and will make great effect to oil refining industry.

Description

technical field [0001] The invention belongs to the field of petroleum processing technology, and in particular relates to a hydrocarbon oil distillation technology. Background technique [0002] Conventional atmospheric and vacuum equipment is the leading equipment in petroleum refining. Its general process flow is as follows: Crude oil is first desalted and dehydrated, and after heat exchange to 230-240°C, it enters the initial distillation tower, and light is separated at the top of the initial distillation tower. Gasoline or reforming raw material, the bottom of the tower is topped crude oil. The crude oil flowing out from the bottom of the primary distillation tower is heated to 360-370°C by the atmospheric furnace and then enters the atmospheric fractionation tower. Straight-run gasoline is separated from the top of the tower, and the side line of the atmospheric fractionation tower produces kerosene and light diesel from top to bottom. , heavy diesel and some catalyt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G7/06
Inventor 周衍亮
Owner 周衍亮
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