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Different density circulation fluidized bed combustion treatment method of greasy mud

A technology of a circulating fluidized bed and a treatment method, applied in the field of waste energy utilization, can solve problems such as pollution, and achieve the effects of solving environmental pollution problems, large fluctuations in calorific value, and suppressing generation and emissions.

Inactive Publication Date: 2006-07-26
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies of the prior art, to provide a different-density circulating fluidized bed combustion treatment method for oil sludge, which uses lower operating costs to clean and utilize oil sludge as a resource, and converts oil sludge into Turning waste into wealth, reducing the cost of oil extraction, and solving environmental pollution problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] (1) Mix limestone and quartz sand to form a media material. The ratio of limestone and quartz sand is determined according to the sulfur content of the oil sludge, and the molar ratio of calcium to sulfur in the media material is determined to be about 2.

[0011] (2) The particle size and gradation of the media material are 5% for the mass fraction of 0.71mm to 1mm, 15% for the mass fraction of 1mm to 2mm, 60% for the mass fraction of 2mm to 3mm, and 5% for the mass fraction of 3mm to 4mm. 15%, and the mass proportion of 4mm to 5mm is 5%.

[0012] (3) The media material is sent to the bottom of the combustion chamber through the media material replenishment device, and the thickness of the material layer is 500mm.

[0013] (4) In a fluidized state, use an external heat source to heat the media material to 850°C.

[0014] (5) Use the feeding device to send the oil sludge into the fluidized bed from the top or side wall of the combustion chamber, and the operating tempe...

Embodiment 2

[0017] (1) The proportion of the media material composed of limestone and quartz sand is determined according to the sulfur content of the oil sludge, and the molar ratio of calcium and sulfur in the media material is determined to be about 3.

[0018] (2) The particle size and gradation of the mixed material are 8% for the mass fraction of 0.71mm to 1mm, 14% for the mass fraction of 1mm to 2mm, 55% for the mass fraction of 2mm to 3mm, and 55% for the mass fraction of 3mm to 4mm. 15%, and the mass proportion of 4mm to 5mm is 8%.

[0019] (3) The mixture of media material quartz sand and limestone is sent to the bottom of the combustion chamber through the media material replenishment device, and the thickness of the material layer is 400mm.

[0020] (4) In a fluidized state, use an external heat source to heat the media material to 800°C.

[0021] (5) Use the feeding device to send the oil sludge into the fluidized bed from the top or side wall of the combustion chamber, and ...

Embodiment 3

[0024] (1) The ratio of the media material composed of limestone and quartz sand is determined according to the sulfur content of the oil sludge, and the molar ratio of calcium to sulfur in the media material is determined to be about 4.

[0025] (2) The particle size and gradation of the mixed material are 10% for the mass fraction of 0.71mm to 1mm, 16% for the mass fraction of 1mm to 2mm, 50% for the mass fraction of 2mm to 3mm, and 50% for the mass fraction of 3mm to 4mm. 14%, and the mass proportion of 4mm to 5mm is 10%.

[0026] (3) The mixture of media material quartz sand and limestone is sent to the bottom of the combustion chamber through the media material replenishment device, and the thickness of the material layer is 250mm.

[0027] (4) In a fluidized state, use an external heat source to heat the media material to 750°C,

[0028] (5) Use the feeding device to send the oil sludge into the fluidized bed from the top or side wall of the combustion chamber, and the ...

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Abstract

The invention discloses a burning solving methods for the oil mud. It uses the arenaceous quartz and the dolomite as the media material, bringing the mud into the fluid bed to burn and suspension burning. A separator recovering device in the outlet of the burning chamber. The temperature is controlled at 850-1000 degree C, which control the forming of the Nox and avoids the coking inside.

Description

technical field [0001] The invention relates to a method for treating oil sludge, in particular to a method of using a different-density circulating fluidized bed combustion method to cleanly utilize the oil sludge produced in the process of oil exploitation, and reduce the waste generated in the process of oil exploitation. Environmental pollution by oil sludge. The invention belongs to the technical field of waste energy utilization. Background technique [0002] Oily sludge is an "associated product" of petroleum production and one of the main pollution sources of petroleum production. It is mainly formed by the deposition of a large amount of sediment contained in the oil well output fluid in the sewage tank. Oil sludge is a kind of waste in the crude oil production process. It has two sources. The main reason is that the crude oil extracted from the ground during the crude oil extraction process contains impurities such as water and sediment, and it is transported to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G5/30C02F11/10F23C10/00F23G5/44
Inventor 姜秀民韩向新于立军王辉张超群刘建国崔志刚任庚坡
Owner SHANGHAI JIAOTONG UNIV
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