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A high-quality recovery method of fine and small particle dry distillation oil gas and its recovery device

A recovery method and technology of small particles, applied in special forms of dry distillation, direct heating dry distillation, petroleum industry and other directions, can solve the problems of oil density, high viscosity, unfavorable oil processing, reduced oil quality and enterprise economy, etc. The oil quality is good, the effect of solving heat collapse and low moisture content

Active Publication Date: 2016-04-27
QUJING ZHONGYI FINE CHEMICAL INDUSTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems are: heavy, medium and light oils are mixed together. Due to the high density and viscosity of the oil, the difficulty of oil-water separation is increased, especially the difficulty of oil-water separation of heavy oil. It is also not conducive to the subsequent processing of oil products

Method used

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  • A high-quality recovery method of fine and small particle dry distillation oil gas and its recovery device
  • A high-quality recovery method of fine and small particle dry distillation oil gas and its recovery device
  • A high-quality recovery method of fine and small particle dry distillation oil gas and its recovery device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Such as figure 1 , 2 As shown in and 3, the retort material is oil shale with particle size <13mm accounting for 86%, and the specific steps are as follows:

[0071] S100: divided into the following steps:

[0072] S110: Add the prepared above-mentioned oil shale into the drying and preheating section 1 of the retort furnace, and feed the retort exhaust gas at 400-450°C, the hot smoke from the hot smoke furnace and the recycled waste from the air inlet 12 at the lower part of the drying and preheating section 1. The mixed flue gas of the flue gas is indirectly heated to the oil shale through the drying heat exchanger 15 until the moisture content is less than 1% and the temperature is greater than 120°C;

[0073] S120: The above-mentioned dried and preheated oil shale is vibrated by the vibrating device 5 provided outside the drying and preheating section 1, and falls into the support plate 21 at the bottom of the sealing section 2 of the carbonization furnace, and is...

Embodiment 2

[0082] Such as figure 1 , 2 Shown in and 3, dry distillation material is the lignite powder that particle size<6mm accounts for 78%, concrete steps are as follows:

[0083] S100: divided into the following steps:

[0084] S110: Add the above prepared lignite powder into the drying preheating section 1 of the dry distillation furnace, and introduce the mixed smoke formed by the dry distillation waste gas at 450-500°C and the hot smoke of the hot smoke furnace from the air inlet 12 at the lower part of the drying preheating section 1 Gas, the lignite powder is indirectly heated through the drying heat exchanger 15 until the moisture content is less than 1% and the temperature is greater than 140°C;

[0085] S120: The above-mentioned dried and preheated lignite powder is vibrated by the vibration device 5 provided outside the drying and preheating section 1, and falls into the support plate 21 at the bottom of the sealing section 2 of the retort furnace, and is piled and compac...

Embodiment 3

[0094] Such as figure 1 , 4 As shown in and 5, the retort material is lignite particles with a particle size of 10-12mm accounting for 88%, and the specific steps are as follows:

[0095] S100: divided into the following steps:

[0096] S110: Gradually put the above-mentioned lignite particles into the drying preheating section 1 of the retort furnace, and at the same time, feed 250-300 lignite particles into the lignite particles through the upper air inlet 16 in the middle part of the drying preheating section 1 through the multi-layered angular box inside. The hot flue gas at 350-400 °C is introduced into the lignite grains from the lower air inlet 17 of the lower part of the drying preheating section 1 through the multi-layer angular box inside, and the lignite grains are directly heated to moisture 140°C, dry waste gas and flue gas are collected and discharged through the exhaust port 14 on the upper side of the drying preheating section, and discharged to the atmospher...

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Abstract

The invention discloses a fine and granule dry distillation oil-gas high-quality recycling method and a recycling device thereof. The fine and granule dry distillation oil-gas high-quality recycling method comprises the following steps: gradually heating a dry distillation furnace, and carrying out pyrolysis to obtain a volatile component; introducing the volatile component into a separating plate settling chamber and / or cyclone dust collector to obtain dedusted oil gas; condensing the dedusted oil gas, and then recycling heavy oil by adopting an electric oil trapper; cooling the oil gas to the temperature lower than 80 DEG C after the heavy oil is recycled, cooling by virtue of a final cooler to obtain oil-water mixed condensate and finally cooled oil gas, centrifuging and separating the finally cooled oil gas to obtain centrifuged condensate and residual oil gas, and carrying out oil-water separation on the oil-water mixed condensate and the centrifuged condensate to obtain medium oil; and carrying out oil-water separation on mixed liquid obtained from the residual oil gas by virtue of an absorption tower and the electric oil trapper, so that light oil is obtained. The recycling device comprises a dry distillation furnace, a separating plate settling chamber, a direct-cooling dust remover, a heavy oil electric trapper, an intercooling device, a final cooler, a centrifugal fan, a medium oil oil-water separator, a light oil absorption tower, a light oil electric trapper and a light oil oil-water separator. The fine and granule dry distillation oil-gas high-quality recycling method and the recycling device have the characteristics that oil yield is high, oil product quality is good, subsequent processing is convenient and coal gas quality is good.

Description

technical field [0001] The invention belongs to the technical field of energy and chemical industry, and in particular relates to a high-quality recovery method and a recovery device for fine and small particle dry distillation oil gas with high oil recovery rate, good oil quality, convenient subsequent processing of oil product and good gas quality. Background technique [0002] my country is rich in coal resources. Except for some of the raw coal used for coking and conversion processing, most of it is used for direct combustion, which not only has low thermal efficiency and serious damage to the environment, but also the hydrogen-rich components with high economic value in coal cannot be obtained. Reasonable use. Moreover, my country's oil shale and oil sand reserves are abundant, and the potential for resource development is huge. [0003] Regardless of fluidized bed, entrained bed dry distillation, or solid heat carrier (hot semi-coke or hot ash) moving bed dry distilla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00C10B53/04C10B49/18
CPCC10B49/18C10B53/04C10G1/002
Inventor 刘长胜罗国林
Owner QUJING ZHONGYI FINE CHEMICAL INDUSTRY CO LTD
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