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Catalytic treatment process and system for converting hazardous waste oily mud sand into solid waste

A technology of catalytic treatment and mud sand, applied in sludge treatment, special compound water treatment, water/sludge/sewage treatment, etc. Reduce oil content and realize the effect of comprehensive regeneration and utilization

Active Publication Date: 2022-05-10
CHINA UNIV OF GEOSCIENCES (BEIJING) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, the technical problem to be solved by the present invention is to overcome the defects of pollutant discharge and difficult realization of resource utilization in the oily mud sand treatment process in the prior art, so as to provide a catalytic treatment for converting hazardous waste oily mud sand into solid waste Process and system

Method used

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  • Catalytic treatment process and system for converting hazardous waste oily mud sand into solid waste
  • Catalytic treatment process and system for converting hazardous waste oily mud sand into solid waste
  • Catalytic treatment process and system for converting hazardous waste oily mud sand into solid waste

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Embodiment 1

[0044] Such as figure 1 A catalytic treatment process for converting hazardous waste oily mud sand into solid waste is shown, including the following steps:

[0045] S1. The mixed raw material of oil sludge sand and carbon-containing organic matter, or the mixed raw material of oil-containing waste and carbon-containing organic matter is pretreated in the preparation tank 1 by ultrasonication, crushing and mixing. Wherein, the temperature of the mixed raw materials in the preparation tank 1 is controlled between 20-100°C.

[0046] Specifically, oily sludge sand or oily waste includes a mixture of one or more of oily sludge and oily bottoms; carbon-containing organic matter is plant straw, rice husk, wheat husk, corn ear, and kitchen waste.

[0047] S2. Put the mixed material obtained after pretreatment and the surfactant having the function of demulsification and viscosity reduction into the reaction tank 2 for temperature raising and pressure raising treatment. Wherein, the...

Embodiment 2

[0057] Such as Figure 4 As shown, the present invention also provides a catalytic treatment system for converting hazardous waste oily mud sand into solid waste, including a preparation tank 1 , at least one reaction tank 2 and an exhaust gas treatment system 3 . The preparation tank 1, the reaction tank 2 and the waste gas treatment system 3 all adopt the preparation tank 1, the reaction tank 2 and the waste gas treatment system 3 described in the first embodiment above, and will not be repeated here.

[0058]In summary, the catalytic treatment process and system for converting hazardous waste oily mud sand into solid waste provided by the embodiment of the present invention adopts the method of combining low-temperature hydrothermal carbonization pyrolysis and surfactants to combine oily mud sand and carbon-containing Organic matter is the main raw material. After the pretreatment in the preparation tank 1, it is transferred to the reaction tank 2 for the treatment of raisi...

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Abstract

The invention discloses a catalytic treatment process and system for converting hazardous waste oily mud and sand into solid waste. The treatment process includes the following steps: S1. Ultrasonic and crushing mixed raw materials of oily mud sand and carbon-containing organic matter in a preparation tank Uniform pretreatment; S2, putting the mixed material obtained after pretreatment and the surfactant having the function of breaking emulsion and reducing viscosity into a reaction tank for temperature and pressure increase treatment; S3, collecting the mixed gas generated in the reaction tank. This catalytic treatment process of oily mud sand adopts the combination method of low temperature hydrothermal carbonization pyrolysis and surfactant, uses oily mud sand and carbon-containing organic matter as the main raw materials, and uses physical, chemical and engineering methods to transform the structure of oily mud sand, Activating and promoting the cracking reaction with high activation energy can effectively reduce the oil content of oily sand, make the treated oily sand meet the harmless discharge standard stipulated by the state, and realize zero discharge in the entire production process.

Description

technical field [0001] The invention relates to the technical field of oily mud sand treatment, in particular to a catalytic treatment process and system for converting hazardous waste oily mud sand into solid waste. Background technique [0002] A large amount of oil sand is produced in the process of crude oil extraction, storage, transportation and refining. The composition of oil sludge sand is extremely complex, usually containing a large amount of crude oil, asphaltenes, waxes, colloids, suspended solids, and toxic and harmful substances such as heavy metal salts, benzene series, phenol, anthracene, etc. If it is not treated and discharged directly, it will pollute the environment, destroy the ecology, and endanger human health. In addition, oil sludge sand is also rich in petroleum substances, etc., which has a certain recycling value. [0003] With the gradual depletion of oil resources, the task of environmental pollution control has gradually intensified, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/10B01J19/10C10B53/00C10B53/02C10B57/00
CPCC02F11/00C02F11/10B01J19/10C10B53/00C10B53/02C10B57/00C02F2305/04Y02E50/10Y02E50/30
Inventor 刘菲王聪毅陈亮汪伶俐童林林
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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