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Biological absorbent for treating hydrocarbon organic waste gas and preparation method thereof

A technology for biological absorption and organic waste gas, which is applied in gas treatment, separation methods, chemical instruments and methods, etc., can solve the problems affecting the treatment capacity of organic waste gas, low concentration of organic waste gas, and restriction of mass transfer rate, etc., and achieves great popularization and application value. , Improve impact resistance, solve the effect of easy blockage

Inactive Publication Date: 2016-06-01
BEIJING VICTEX ENVIRONMENTAL PROTECTION TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the surfactant system is used, the concentration of organic waste gas is low, the fluctuation is large, and it is difficult to dissolve in water, so that the mass transfer rate of this hydrocarbon hydrophobic organic matter between gas and liquid is limited, which affects the treatment of organic waste gas ability

Method used

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  • Biological absorbent for treating hydrocarbon organic waste gas and preparation method thereof
  • Biological absorbent for treating hydrocarbon organic waste gas and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A bioabsorbent for treating hydrocarbon organic waste gas described in Example 1 of the present invention is made of the following components: 2kg of 25g / l rhamnolipid aqueous solution, 0.3kg of sodium oleate, 2kg of biodiesel, bacteria thick 10 10 -10 11 91kg of functional bacteria aqueous solution and 0.5kg of sodium citrate.

[0032] The preparation method of the above-mentioned bioabsorbent for treating hydrocarbon organic waste gas comprises the following steps:

[0033] (1) biodiesel and sodium oleate are mixed with the rhamnolipid fermentation liquid, stirred to obtain an emulsion, and the emulsion is sterilized;

[0034] (2) Make the bacteria concentration 10 10 -10 11 The functional bacteria aqueous solution of each / ml is added to the sterilized emulsion in step (2), stirred at 25°C, the stirring intensity is 72 rpm, and the stirring time is 30 minutes; and

[0035] (3) Put the nutrient salt into the mixed solution prepared in step (3), mix and stir to obt...

Embodiment 2

[0037] A bioabsorbent for treating hydrocarbon organic waste gas described in Example 1 of the present invention is made of the following components: 25g / l rhamnolipid fermentation broth 4kg, sodium oleate 0.4kg, biodiesel 2% , bacterial concentration 10 10 -10 11 93kg of functional bacteria aqueous solution and 0.5kg of potassium sulfate per ml.

Embodiment 3

[0039] A bioabsorbent for treating hydrocarbon organic waste gas described in Example 1 of the present invention is made of the following components: 6 kg of 25 g / l rhamnolipid fermentation broth, 0.5 kg of sodium oleate, 2 kg of biodiesel, Bacterial concentration 10 10 -10 11 95kg of functional bacteria aqueous solution of each / ml, and 0.25kg of sodium citrate and 0.25kg of ammonium phosphate.

[0040] Main raw material characteristics and absorption process principle, parameters of the embodiment of the present invention

[0041] (1) Main raw materials: biodiesel, rhamnolipid fermentation broth, hydrocarbon degrading bacteria (brevibacterium, laboratory screening)

[0042] Biodiesel: It has good safety performance and is a kind of green diesel. The flash point is higher than that of petrochemical diesel. It is not a dangerous fuel and has obvious advantages in transportation, storage and use. It is an organic liquid mainly made from oil crops such as soybean and rapeseed,...

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Abstract

The invention discloses a biological absorbent for treating hydrocarbon organic waste gas and a preparation method thereof. The biological absorbent is prepared from the following ingredients in percentage by weight: 2-6% of 25g / l rhamnolipid fermentation broth, 0.3-0.5% of sodium oleate, 2% of biodiesel, 91-95% of functional bacterium solution with bacterium concentration of 1010-1011 bacteria / ml, and 0.5% of nutritive salt. The biological absorbent has the beneficial effects that a surface active agent system and biodiesel form emulsion, so that the organic waste gas with poor water solubility is dissolved into a biodiesel phase and then degraded by microorganisms in the emulsion, so that up-to-stand emission of hydrocarbonaceous organic waste gas with poor water solubility is achieved.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a bioabsorbent for treating hydrocarbon organic waste gas and a preparation method thereof. Background technique [0002] The absorption method has the advantages of a wide range of adaptability to the composition, concentration and air volume of hydrocarbon-containing organic waste gas, and simple operation and control, and has been widely used. The absorption method uses low-volatility or non-volatile liquid as the absorbent, and uses the difference in solubility or chemical reaction characteristics of various components in the exhaust gas in the absorbent through the absorption device to make the harmful components in the exhaust gas absorbed by the absorbent, thereby To achieve the purpose of purifying exhaust gas. In the treatment of VOCs, organic solvents such as oils with high boiling point and low vapor pressure are often used as absorbents to separate high-c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/84B01D53/72
CPCB01D53/72B01D53/84B01D2256/24Y02A50/20
Inventor 赵力陈韶军张生黄玉才何琳娜叶帆张葵红张烨金艳芳彭继涛寇焕起
Owner BEIJING VICTEX ENVIRONMENTAL PROTECTION TECH DEV
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