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System and process for producing oil by hydrotorting oil shale under increased pressure

A technology of hydrogenation carbonization and oil shale, which is applied in the petroleum industry, special carbonization, coking ovens, etc., can solve the problems of technical public reporting, etc., and achieve the effects of reducing environmental pollution, improving quality and yield, and increasing additional benefits

Inactive Publication Date: 2014-07-09
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, hydrogenation is an effective method to increase the yield of oil shale retort oil, but there is no public report on related technologies

Method used

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  • System and process for producing oil by hydrotorting oil shale under increased pressure

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Effect test

Embodiment 1

[0032] An oil shale pressurized hydrogenation carbonization oil production system, comprising a carbonization furnace 1, an oil shale silo 2, an oil storage tank 3, an oil-gas separator 4, a hydrogen separator 5, a hydrogen-rich gas tank 6, and a gas heater 7. Gasification fuel bin 8, combustible gas tank 9, gasification furnace 11, and conveying device 12, wherein: carbonization furnace 1 is used for carbonization of oil shale fed through oil shale silo 2, and carbonization furnace 1 is connected to the oil and gas Separator 4, oil-gas separator 4 is connected with hydrogen separator 5 and oil storage tank 3; Hydrogen gas, the hydrogen-rich gas tank 6 is connected to the gas heater 7; the gasification furnace 11 is connected to the lower port of the carbonization furnace 1 through the conveying device 12, and is used to transfer the semi-coke of the carbonization product of the carbonization furnace 1 to the gasification fuel bin 8 The gasification reaction of the imported oi...

Embodiment 2

[0034] An oil shale pressurized hydrogenation dry distillation oil production system, such as figure 1 As shown, it includes dry distillation furnace 1, oil shale silo 2, oil storage tank 3, oil gas separator 4, hydrogen gas separator 5, hydrogen-rich gas tank 6, gas heater 7, gasification fuel tank 8, combustible gas tank 9. Heat exchanger 10, gasifier 11, and conveying device 12, wherein: dry distillation furnace 1 is used for dry distillation of oil shale fed through oil shale silo 2, and dry distillation furnace 1 is connected to oil-gas separator 4 for oil-gas separation The device 4 is connected with the hydrogen separator 5 and the oil storage tank 3; the hydrogen separator 5 is connected with the hydrogen-rich gas tank 6, and the hydrogen separator 5 is used to separate the gas produced by the dry distillation of oil shale to obtain hydrogen-rich gas, hydrogen-rich gas The tank 6 is connected to the gas heater 7; the gasification furnace 11 is connected to the lower po...

Embodiment 3

[0036] An oil shale pressurized hydrogenation dry distillation oil production process, the process uses the oil shale pressurized hydrogenation dry distillation oil production system described in embodiment 2, comprising the following steps:

[0037] a. crush and dry the oil shale to obtain granular oil shale with a particle size greater than 4mm and powdery oil shale with a particle size not greater than 4mm, store the granular oil shale in the oil shale silo 2, and put the powdery oil Shale is stored in the gasification fuel bunker 8;

[0038] b. The granular oil shale in step a descends into the carbonization furnace 1, and conducts carbonization under the environment of 450-550°C and 2-3MPa to produce semi-coke, shale oil and gas; the gas and shale oil pass through the oil-gas separator 4 After separation, the shale oil is stored in the oil storage tank 3, the gas enters the hydrogen separator 5 and is separated into hydrogen-rich gas and dehydrogenated gas, the hydrogen-r...

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Abstract

The invention discloses a system for producing oil by hydrotorting oil shale under increased pressure. The system comprises a dry distillation furnace (1), an oil shale stock bin (2), an oil storage tank (3), an oil-gas separator (4), a hydrogen separator (5), a hydrogen-rich gas tank (6), a gas heater (7), a vaporized fuel cabin (8), a combustible gas tank (9), a heat exchanger (10), a gasification furnace (11) and a conveying device (12). In a process for producing oil by hydrotorting oil shale under increased pressure by using the system, gas produced by dry distillation is separated through the hydrogen separator, produced hydrogen-rich gas is returned into the dry distillation furnace after being heated by the gas heater, and produced dehydrogenated gas and combustible gas produced by gasification in the gasification furnace are introduced into the gas heater as fuels. Oil shale particles are produced into oil through dry distillation in a hydrogen-rich atmosphere, so that organic matters are prevented from being carbonized due to lack of hydrogen, and the oil yield of the oil shale is increased; the dehydrogenated gas and the combustible gas are introduced into the gas heater as fuels, so that the energy utilization ratio is increased.

Description

technical field [0001] The invention belongs to the technical field of oil shale resource utilization, and relates to an oil shale pressurized hydrogenation dry distillation system and process. Background technique [0002] Oil shale, also known as "solid petroleum", is an unconventional oil and gas resource with huge reserves. Shale oil with properties similar to natural petroleum can be obtained by heating in a retort device at 400-600°C. The S has been used as a very important petroleum supplementary energy source. At present, the world's proven shale oil reserves are more than 400 billion tons (converted according to oil shale in-situ reserves), which is much higher than the world's proven recoverable crude oil reserves, and this figure will increase with the further exploration of oil shale resources. my country is a country with large reserves of oil shale resources. According to the results of national oil shale resource evaluation from 2004 to 2006, my country's oil ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/06
Inventor 韩向新姜秀民刘庆庆李庆有刘建国刘加勋
Owner SHANGHAI JIAO TONG UNIV
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