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Device for degrading high-concentration petroleum emissions

A high-concentration, high-efficiency emission technology, applied in gas treatment, membrane technology, and separation of dispersed particles, can solve problems such as poor operational safety, complex process, and high operating cost, and achieve efficient and stable operation, high biophase concentration, and wide application Effect

Inactive Publication Date: 2019-01-11
YANCHENG JINRUI PETROLEUM MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current conventional methods for VOCs and their shortcomings are as follows: combustion method, mainly for high-concentration and small-volume VOCs waste gas with complex components, which has high operating costs, poor operation safety and is prone to secondary pollution; absorption method is suitable for high For VOCs waste gas with good concentration and solubility, the absorbent needs to be recycled, which is easy to form secondary pollution; activated carbon adsorption method is suitable for low-concentration and large-volume VOCs waste gas, activated carbon is easily saturated, and the cost of activated carbon regeneration is also very expensive; condensation method , for VOCs waste gas with high boiling point and small gas volume, the process is complex, and the recovery rate of highly volatile components in complex components is low
[0004] For low-concentration VOCs exhaust gas, the biological purification method has shown great competitiveness with its good purification effect and low operating costs. However, for high-concentration VOCs exhaust gas, the traditional biological method has no complete solution. , unable to purify high-concentration VOCs exhaust gas to within the emission standard required by the national standard

Method used

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  • Device for degrading high-concentration petroleum emissions
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  • Device for degrading high-concentration petroleum emissions

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the device for purifying high-concentration organic waste gas according to the present invention mainly includes an air inlet 0, an air intake pump 1 connected to the air inlet 0, an activated carbon filter 2 connected to the air intake pump 1, and the activated carbon The filter 2 is used to connect with the first solenoid valve 3 , the first solenoid valve 3 is connected with the first rotameter 4 , and the first rotameter 4 is connected with the biological trickling filter 5 .

[0027] Further, the device also includes a circulating water pump 6, the circulating water pump 6 is connected to a circulating liquid tank 7, the circulating liquid tank 7 is connected to a second rotameter 8, and the second rotameter 8 is connected to a first Two solenoid valves 9, the second solenoid valve 9 is connected to the biological trickling filter 5.

[0028]Further, the device also includes a nutrient solution tank 10, which is divided into three indepe...

Embodiment 2

[0031] The biodegradation process of petroleum compounds includes three processes. First, petroleum compounds are adsorbed to the surface of microorganisms; secondly, petroleum compounds are transferred to microbial cell membranes through reactions; and then these compounds are degraded in microbial cytoplasm through microbial basic metabolic pathways. Because petroleum compounds will present different molecular structures during the discharge process, such as saturated hydrocarbons, alkanes, polycyclic aromatic hydrocarbons, etc., different bacteria, fungi, and algae have different metabolic pathways, that is, degradation pathways. Therefore, providing multiple biological filtration layers is helpful to realize the one-time removal of multiple pollutants.

[0032] The main filter medium of the first biofiltration layer is the bacterial biofilm of the bacterial substrate, and the preparation method of the biofilm is as follows: take adjacent oligotrophic bacteria (Abiotrophia a...

Embodiment 3

[0038] The main filter medium of the second biofiltration layer 54 is the fungal biofilm of the fungal substrate, and the preparation method of the fungal biofilm is as follows: take Aspergillus giganteus, Aspergillus gliocladium, Mucor pusillus), Cryptococcus Kutzing, Candida pelliculosa, Ceotruchum candidum, and Cryytococcus neoformans. The preserved strains of the above strains are cultured on the fungal culture medium by streaking inoculation, cultured at 28°C for 24 hours to rejuvenate the strains and form a single colony, and after expanding the culture of the single strain, the culture solution of the single strain is centrifuged Concentrate, mix the concentrated solution according to the following weight percentages to make a mixture of fungal strains: 18% Aspergillus gigantum, 13% Aspergillus colloidus, 17% Mucor micromyces, 15% Cryptococcus genus, and 19% Pymphaea candida , Candida 11%, and Geotrichum candidum 7%, the strain mixture is attached to the nano-clay light...

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Abstract

The invention provides a device for degrading high-concentration petroleum emissions. The device comprises a biological trickling filter. The device can be used for purifying high-concentration petroleum industrial waste gas. The device has the following advantages: the device is suitable for high-concentration multi-component petroleum industry exhaust gas; a multilayer bio-filler is arranged inthe biological trickling filter to treat various kinds of volatile petroleum exhaust gases; the biological phase concentration is high, automatic adjustment of nutrient addition, the temperature, thehumidity and the pH value in the device can be achieved, all environment parameters in the biological trickling filter are effectively stabilized, and the efficient and stable running of the device isensured; and the device is preferably suitable for the petrochemical industry.

Description

technical field [0001] The invention relates to the field of petroleum machinery, in particular to a device for degrading high-concentration petroleum discharge. Background technique [0002] Volatile organic compounds (VOCs) are one of the most common gaseous pollutants emitted by petrochemical and related industries. They are extremely harmful to climate change, plant growth and decline, and the health of humans and all animals. Therefore, they are increasingly The more and more countries in the world pay attention to it, many developed countries have promulgated corresponding laws and regulations to limit the emission of VOCs. [0003] The current conventional methods for VOCs and their shortcomings are as follows: combustion method, mainly for high-concentration and small-volume VOCs waste gas with complex components, which has high operating costs, poor operation safety and is prone to secondary pollution; absorption method is suitable for high For VOCs waste gas with ...

Claims

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Application Information

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IPC IPC(8): B01D53/84B01D53/44
CPCB01D53/346B01D53/44B01D53/84B01D2251/95B01D2257/708Y02A50/20
Inventor 花金年钱瑞祥钱正楠郭中西
Owner YANCHENG JINRUI PETROLEUM MACHINERY CO LTD
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