Heavy oil full-fraction hydrotreatment method and system thereof

A hydrogenation treatment and fractionation technology, which is applied in the field of coal chemical industry, can solve the problems of resource waste and low light oil rate, and achieve the effects of stable operation, high oil yield and cost reduction

Active Publication Date: 2015-02-18
HUADIAN HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a method and system for hydrotreating whole distillates of heavy oil, which can effectively solve the problems existing in the prior art, especially the problems of low light oil rate and serious waste of resources

Method used

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  • Heavy oil full-fraction hydrotreatment method and system thereof
  • Heavy oil full-fraction hydrotreatment method and system thereof
  • Heavy oil full-fraction hydrotreatment method and system thereof

Examples

Experimental program
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Embodiment 1

[0031] Embodiment 1: as figure 1 , figure 2 , image 3 As shown: the heavy component raw oil comes from outside the boundary area, and after exchanging heat with the system heat exchanger, the temperature is raised to 150-180°C, and then enters the vacuum dehydration tower 5 to remove moisture. The dehydrated raw material oil is boosted by the feed pump 6, and after heat exchange, it is mixed with hydrogen and enters the raw material heating furnace 7. The raw material oil is heated by the heating furnace 7 to 260-300°C and then enters the hydrotreating device 8 for hydrogenation. It specifically includes: the raw material oil enters the fluidized bed hydrofining reactor 1 (bottom-in and top-out type), and hydrofining reaction occurs under the action of high temperature, high pressure, hydrogenation and catalyst. The reaction temperature is controlled at 360-385°C, the reaction pressure is controlled at about 15-18MPa, the hydrogen-oil ratio is controlled at 800:1, and the ...

Embodiment 2

[0036] Embodiment 2: as figure 1 , figure 2 , image 3 As shown: the heavy component raw oil comes from outside the boundary area, and after exchanging heat with the system heat exchanger, the temperature is raised to 150-180°C, and then enters the vacuum dehydration tower 5 to remove moisture. The dehydrated raw material oil is boosted by the feed pump 6, and after heat exchange, it is mixed with hydrogen and enters the raw material heating furnace 7. The raw material oil is heated by the heating furnace 7 to 260-300°C and then enters the hydrotreating device 8 for hydrogenation. It specifically includes: the raw material oil enters the fluidized bed hydrofining reactor 1 (bottom-in and top-out type), and hydrofining reaction occurs under the action of high temperature, high pressure, hydrogenation and catalyst. The reaction temperature is controlled at 360-385°C, the reaction pressure is controlled at about 15-18MPa, the hydrogen-oil ratio is controlled at 800:1, and the ...

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Abstract

The invention discloses a heavy oil full-fraction hydrotreatment method and a system thereof. the method provided by the invention comprises the following steps: a heavier component raw oil is mixed with hydrogen after undergoing dehydration and booster heat exchange treatments; the mixed heavier component raw oil and hydrogen are heated and then enter a boiling bed hydrofinishing reactor for a hydrofinishing reaction; products obtained after the hydrofinishing reaction enter a thermal high-pressure separator for separation of light and heavier components; light components enter a fixed bed hydro-upgrading reactor for a hydro-upgrading reaction, and heavier components enter a boiling bed hydrocracking reactor for a hydrocracking reaction; an effluent obtained after the hydro-upgrading reaction and an effluent obtained after the hydrocracking reaction are mixed and cooled by heat exchange and undergo gas-oil-water separation; after temperature of separated oil rises by heat exchange, a qualified oil product is obtained by fractionation; and fractionized tail oil undergoes boost heat exchange treatment to be used as raw oil for hydrogenation feeding. The system provided by the invention has advantages of large technological handling capacity and long running period. In addition, the maximum dose of the light components can be produced; and the yield of the oil product is high and reaches more than 90%.

Description

technical field [0001] The invention relates to a method and system for hydrogenation of whole distillates of heavy oil, belonging to the technical field of coal chemical industry. Background technique [0002] With the development of the world economy, especially with the economic development of developing countries, the demand for liquid fuels in countries around the world is increasing. Due to the influence of many factors, oil resources are approaching the edge of depletion day by day, and the resources are very tight. [0003] Coal is currently the main energy and chemical raw material. In the next few decades, coal may still be an important pillar for the rapid, healthy and sustainable development of my country's national economy. Coking industry is an important way of coal utilization. With the rapid development of my country's coking industry, the deep processing industry of its by-products is also developing rapidly, especially the deep processing of coal tar. In ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G69/00
Inventor 白建明单小勇张波金毅
Owner HUADIAN HEAVY IND CO LTD
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