Full-negative-pressure recovery process of dry distillation furnace generation gas in oil shale dry distillation oil refining and system thereof

A dry distillation furnace and oil shale technology, which is used in coke ovens, petroleum industry, special forms of dry distillation, etc., can solve the problems of underutilized heat, low oil production rate, large water consumption, etc. The effect of reducing the amount of oil carried and improving the processing capacity

Inactive Publication Date: 2015-04-22
BEIPIAO BEITA OIL SHALE INTEGRATED DEV UTILIZATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The oil and gas at the outlet of the oil shale retort furnace is mainly in the gas phase and needs to be condensed and recovered. At present, the domestic shale oil condensation recovery system mainly refers to the water washin

Method used

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  • Full-negative-pressure recovery process of dry distillation furnace generation gas in oil shale dry distillation oil refining and system thereof
  • Full-negative-pressure recovery process of dry distillation furnace generation gas in oil shale dry distillation oil refining and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1

[0022] As shown in the figure, the full negative pressure recovery system for the gas generated in the retort furnace in the oil shale retort refining includes a retort furnace 1, a heating furnace 13, and a manifold 4. The special feature is: the single furnace of the retort furnace 1 The outlet 101 is communicated with the collecting pipe 4 through a pipe. The washing water inlet of the collecting pipe 4 is connected to a mud collecting tank 2 through a pipe, and a mud collecting pump 3 is connected to the pipe between the collecting pipe 4 and the mud collecting tank 2 The washing water outlet of the collecting pipe 4 is connected to the mud collecting tank 2 through a pipe; the gas outlet of the collecting pipe 4 is connected to a washing saturation tower I5 through a pipe, and the washing water inlet of the washing saturation tower I5 is connected through a pipe There is a washing tank I9, a washing pump I11 is connected to the pipeline between the washing...

Example Embodiment

[0028] Example 2

[0029] The structure of the full negative pressure recovery system for gas generated in the retort furnace in the retort refining of oil shale is the same as the embodiment. .

[0030] The recycling process is:

[0031] (1) In the oil shale retort refining, the generated gas generated by the retort furnace 1 enters the collecting pipe 4 through the outlet 101 of the single furnace, and the circulating water of the mud collecting tank 2 is pumped to the collecting pipe 4 to the gas in the collecting pipe 4 through the mud collecting pump 3 Carry out the first spray washing, the oil and water after washing the gas flows into the mud collecting tank 2 by itself, and is recycled after sedimentation and separation;

[0032] (2) The gas in the manifold 4 maintains negative pressure under the pumping action of the gas discharge machine 8, and enters the washing saturation tower I5. The circulating water of the washing tank I9 is ​​pumped to the washing saturation tower I5...

Example Embodiment

[0035] Example 3

[0036] The structure of the full negative pressure recovery system for gas generated in the retort furnace in the retort refining of oil shale is the same as the embodiment.

[0037] The recycling process is:

[0038] (1) In the oil shale retort refining, the gas generated in the retort furnace 1 enters the collecting pipe 4 through the outlet 101 of the single furnace, and the circulating water of the mud collecting tank 2 is pumped to the collecting pipe 4 to the gas in the collecting pipe 4 through the mud collecting pump 3 Carry out the first spray washing, the oil and water after washing the gas flows into the mud collecting tank 2 by itself, and is recycled after sedimentation and separation;

[0039] (2) The gas in the manifold 4 maintains negative pressure under the pumping action of the gas discharge machine 8, and enters the washing saturation tower I5. The circulating water of the washing tank I9 is ​​pumped to the washing saturation tower I5 and the wash...

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Abstract

Provided are a full-negative-pressure recovery process of dry distillation furnace generation gas in oil shale dry distillation oil refining and a system thereof. The recovery system comprises a dry distillation furnace, a mud collecting tank, a mud collecting pump, a collecting pipe, washing saturation towers, an indirect cooling tower, a gas exhaust-feeding machine, a washing pool, a washing pump and a heating furnace. According to the recovery process, generation gas generated by the dry distillation furnace in oil shale dry distillation oil refining is pumped to the collecting pipe, a washing saturation tower I and a washing saturation tower II for spraying washing through the gas exhaust-feeding machine, the gas is conveyed into the indirect cooling tower, after heat exchanging in the direct cooling tower, one part of the gas is conveyed into the heating furnace by the gas exhaust-feeding machine for heating the heating furnace, the other part of the gas is used as circulation gas to be conveyed to the bottom of the washing saturation tower II, and after heat exchanging, the gas enters the heat storage type heating furnace for continuous heat exchanging and is used as a heat carrier to be conveyed to the dry distillation furnace. The process and the system have the advantages that the process is simple, whole system heat is fully used, energy loss is low, water using amount is small, and oil productivity can be improved.

Description

technical field [0001] The invention relates to a full negative pressure recovery process and system for gas generated in a carbonization furnace in oil shale carbonization and refining. Background technique [0002] Oil shale dry distillation refining has a history of 100 years. The oil shale dry distillation refining process includes heating furnace system, dry distillation system and recovery system. The heating furnace and the retort system use the retort furnace to heat the oil shale to generate retort gas, and the recovery system recycles the retort gas, and the recycled materials include gas and shale oil. The oil and gas at the outlet of the oil shale retort furnace is mainly in the gas phase and needs to be condensed and recovered. At present, the domestic shale oil condensation recovery system mainly refers to the water washing process in the coking industry. This process is applied to the oil and gas recovery at the outlet of the oil shale retort furnace The ...

Claims

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Application Information

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IPC IPC(8): C10G1/00C10B53/06C10B49/02
CPCC10G1/00C10B49/02C10B53/06
Inventor 孙长利王志伟邢凯张长清
Owner BEIPIAO BEITA OIL SHALE INTEGRATED DEV UTILIZATION CO LTD
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