Oil-containing resourceful treatment method

A resource-based and biochemical treatment device technology, applied in the field of oil-containing resource-based treatment, can solve problems such as the inability to fundamentally overcome oil sludge pollution, low recovery rate, waste of resources, etc.

Pending Publication Date: 2022-01-21
肖进彬
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the treatment methods for oil sludge are mainly high-temperature incineration, thermal cracking, etc. Incineration and thermal cracking will produce harmful gases and toxic waste water. The recovery rate of oil in oil sludge is less than 50%, which cannot fundamentally overcome the pollution of oil sludge and waste resources.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Dry and dehydrate the oil sludge produced by oil exploitation in Liaohe Oilfield until the oil content is 30% and the water content is 30%, and granulate to obtain particles with a particle size within the range of 1 to 2 cm;

[0050] Combust the liquefied gas to obtain a hot gas flow, pass through a mixed deoxidizer composed of 60% charcoal and 40% oil sludge residue, the oxygen content in the hot gas flow is 1%, and the temperature is 400°C;

[0051] The oil sludge particles are sent to the rotary moving bed with the conveying device, and the hot air flow is also sent into the rotating moving bed to contact the oil sludge particles. The rotating speed of the optional moving bed is 25 revolutions / min, and the contact time between the hot air flow and the oil sludge particles is 1 hour;

[0052] The obtained residue accounts for 35%, and the oil yield is 81%. After the waste gas is purified, the sulfur dioxide content is 70ppm, and the nitrogen oxide content is 40ppm. Af...

Embodiment 2

[0054] The oil sludge produced in Nanyang Tanghe Oilfield, with an oil content of 10% and a water content of 55%, is dried and dehydrated to a water content of 10%, and granulated to obtain particles with a particle size within the range of 0.5 to 2 cm;

[0055] Combust the liquefied gas to obtain a hot gas flow. After passing through a mixed deoxidizer composed of 80% charcoal and 20% sludge residue, the oxygen content in the hot gas flow is 1%, and the temperature is 350°C;

[0056] Send the oil sludge particles into the rotary moving bed with the conveying device, and the hot air flow is also sent into the rotating moving bed to contact with the oil sludge particles. The rotating speed of the optional moving bed is 15 revolutions / min, and the contact time between the hot air flow and the oil sludge particles is 0.5 hours;

[0057] The obtained residue accounts for 38%, and the oil yield is 76%. After the waste gas is purified, the sulfur dioxide content is 60ppm, the nitroge...

Embodiment 3

[0059]The oil sludge produced in the Zhongyuan Oilfield has an oil content of 20% and a water content of 45%, dried and dehydrated to a water content of 10%, and granulated to obtain particles with a particle size within the range of 0.5 to 1.5 cm;

[0060] Combust the liquefied gas to obtain a hot gas flow. After passing through a mixed deoxidizer composed of 90% charcoal and 10% sludge residue, the oxygen content in the hot gas flow is 1%, and the temperature is 450°C;

[0061] The sludge particles are sent to the rotary moving bed with the conveying device, and the hot air flow is also sent to the rotary moving bed to contact the sludge particles. The rotating speed of the optional moving bed is 50 revolutions / min, and the contact time between the hot air flow and the sludge particles is 0.5 hours;

[0062] The obtained residue accounts for 36%, and the oil yield is 76%. After the waste gas is purified, the sulfur dioxide content is 80ppm, and the nitrogen oxide content is 3...

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Abstract

The invention relates to an oil-containing resourceful treatment method. The method comprises the following steps: dehydrating and granulating are performed on oil sludge to obtain oil sludge particles; the oil sludge is conveyed into a rotary moving bed; fuel gas is combusted to generate hot air flow, deoxidized with a deoxidizing agent, and fed into the rotary moving bed; oil sludge particles and e hot air flow are in contact in the rotary moving bed, and oil in the oil sludge volatilizes at a certain temperature and is carried out of the rotary moving bed by the air flow; mixing residues obtained after the oil sludge is deoiled with a failure material discharged from the biological waste purifier and residual sludge in the sewage biochemical treatment device, and processing the mixture into a soil ecological conditioning agent; and the hot airflow carrying oil gas is cooled by a cooler and then separated into gas and liquid phases, the liquid is separated into oil and wastewater by an oil-water separator, the oil enters an oil tank for storage, and the wastewater enters a sewage biochemical treatment device for treatment and then is discharged. The method provided by the invention can be used for treating the oil sludge on a large scale to obtain the soil ecological regulation material and oil, so that waste water and waste gas are realized, and resourceful treatment of the oil sludge is realized.

Description

technical field [0001] The application belongs to the technical field of waste resource treatment, and in particular relates to a method for resource treatment of oil. Background technique [0002] Oil sludge is the solid waste in the oil sludge produced in the process of petroleum exploitation, petroleum refining, oily, coal chemical industry, and oil tank cleaning. The main components of oil sludge are mineral oil, oil, or hydrocarbons in the chemical production process, water, Sediment, with high sediment content, complex oil composition, and various toxic and harmful compounds, heavy metals, etc., is a special kind of hazardous waste. If it is not disposed of properly, it will cause potential harm to the ecological environment and human health. It has the characteristics of concealment, lag, accumulation, coordination and jointness. [0003] At present, the treatment methods for oil sludge are mainly high-temperature incineration, thermal cracking, etc. Incineration and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/00C02F11/12C02F9/14C02F1/40B01D17/02C02F3/00C10G1/00B01D53/84B01D53/50B01D53/56C02F101/16
CPCC02F11/00C02F11/12C02F9/00C02F1/40B01D17/02C02F3/00C10G1/00B01D53/84B01D53/50B01D53/56B01D2258/02C02F2209/02C02F2209/08C02F2101/16Y02A50/20
Inventor 肖进彬张璐璐方玉美刘振聂宁
Owner 肖进彬
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