Oil shale dry-wet mixing method dry distillation technology and heat accumulating type external firing shale oven

An oil mother shale, regenerative technology, applied in the petroleum industry, special forms of dry distillation, indirect heating dry distillation, etc., to increase convective heat transfer, reduce energy loss, and facilitate heat exchange.

Active Publication Date: 2012-02-29
SHENYANG DONGDA IND FURNACE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of the existing dry distillation process and equipment, the present invention provides a kind of kerogen shale dry-wet mixed dry distillation process and regenerative external combustion dry distillation furnace

Method used

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  • Oil shale dry-wet mixing method dry distillation technology and heat accumulating type external firing shale oven
  • Oil shale dry-wet mixing method dry distillation technology and heat accumulating type external firing shale oven
  • Oil shale dry-wet mixing method dry distillation technology and heat accumulating type external firing shale oven

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Experimental program
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Embodiment Construction

[0022] exist figure 1 In the process, the material (oil shale particles) passes through the electric star valve (8) in the silo (7), and then passes through the electric gate valve (9) (where 8 and 9 play the role of gas locking and discharging) and descends into the carbonization furnace. The material falls vertically after being evenly distributed by the distributor (12), and the falling speed of the material is controlled by the water-sealed slag discharge device (15). The material in the carbonization furnace body is heated by the heat exchange tube bundle (11) to complete the carbonization process. The dry distillation oil gas produced by dry distillation is discharged outside the furnace through the air umbrella (10). The cold cycle gas is sprayed from the cold cycle gas nozzle (14) to recover the sensible heat of semi-coke. The material feeder (13) is vertically arranged with the heat exchange tube bundle (11), and the rotation of the material guide (13) drives the ma...

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Abstract

An oil shale dry-wet mixing method dry distillation technology and a heat accumulating type external firing shale oven are respectively a technology and a device for obtaining shale oil and high heating value gas via low-temperature dry distillation. In a new dry distillation technology, a group of heat transmission tube bundle is arranged in the shale oven, high-temperature combustion products, which are mixed well, flow in the tubes, and the external side of each tube directly exchanges heat with the shale to produce oil vapor. A new shale oven is of a shaft-furnace structure, and materials moves from top to bottom under the action of gravity and a drop guide. Combustion chambers are arranged at two sides of the shale oven, and a heat accumulating type combustion technology and a flue gas flow-back exchange mode are used for producing high-temperature flue gas flowing through a heat exchange tube bundle in the shale oven, so as to provide a heat source for the shale oven.

Description

technical field [0001] The invention belongs to the field of low-temperature dry distillation of kerogen shale, in particular to a process and a device for obtaining shale oil and high calorific value gas by low-temperature dry distillation. Background technique [0002] In the context of the current energy shortage, the domestic oil gap is gradually increasing. Domestic kerogen shale reserves are huge, and the low-temperature dry distillation of kerogen shale to produce shale oil is in line with my country's sustainable development strategy. At present, low-temperature carbonization technologies at home and abroad are mainly divided into two types: one is to use the combustion method at the bottom of the carbonization furnace, and use the flue gas produced by burning semi-coke and the circulating gas gas to heat the gas outside the furnace as the heat carrier. Fushun retort process; the other is to use the regenerative circulating gas heating furnace outside the retort fur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/06C10B47/00
Inventor 张卫军张效鹏仝永娟杨强大姚彤辉王敏
Owner SHENYANG DONGDA IND FURNACE
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