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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

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 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 Disadvantages of low oil production rate, large water consumption, and insufficient use of heat

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
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Effect test

Embodiment 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 distillation refinery includes a retort furnace 1, a heating furnace 13, and a manifold 4. The special feature is that the retort furnace 1 is a single furnace The outlet 101 communicates with the collecting pipe 4 through a pipeline, and the washing water inlet of the collecting pipe 4 is connected with the mud collecting tank 2 through the pipeline, and the mud collecting pump 3 is connected on the pipeline between the collecting pipe 4 and the mud collecting tank 2 , the washing water outlet of the collecting pipe 4 is connected with the mud collecting tank 2 through a pipeline; the gas outlet of the collecting pipe 4 is connected with a washing and saturating tower I5 through a pipe, and the washing water inlet of the washing and saturating tower I5 is connected with a pipe There is a washing pool I9, and the pipeline between the wash...

Embodiment 2

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

[0030] The recycling process is:

[0031] (1) The gas generated by retort furnace 1 in oil shale retort refinery enters manifold 4 through outlet 101 of the single furnace, and the circulating water in mud collection tank 2 is pumped to manifold 4 by mud collection pump 3 to the gas in manifold 4 The first spray washing is carried out, and the oil and water after washing the gas flow into the mud collection tank 2 by itself, and are recycled after sedimentation and separation;

[0032] (2) The gas in the manifold 4 maintains a negative pressure under the pumping action of the gas conveyor 8, and enters the scrubbing and saturating tower I5, and the circulating water in the scrubbing tank I9 is ​​pumped to the scrubbing and saturating tower I5 to the scrubbing and saturating towe...

Embodiment 3

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

[0037] The recycling process is:

[0038] (1) The gas generated by retort furnace 1 in oil shale retort refinery enters manifold 4 through outlet 101 of the single furnace, and the circulating water in mud collection tank 2 is pumped to manifold 4 by mud collection pump 3 to the gas in manifold 4 The first spray washing is carried out, and the oil and water after washing the gas flow into the mud collection tank 2 by itself, and are recycled after sedimentation and separation;

[0039] (2) The gas in the manifold 4 maintains a negative pressure under the pumping action of the gas conveyor 8, and enters the scrubbing and saturating tower I5, and the circulating water in the scrubbing tank I9 is ​​pumped to the scrubbing and saturating tower I5 to the scrubbing and saturating tower I...

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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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