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Washing liquor for refinery waste gas primary treatment

A refinery exhaust gas and water washing technology, which is applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of different exhaust gas components, increased treatment costs, and failure to meet discharge standards, etc. , to achieve the effect of convenient use, reducing the difficulty of post-processing, and reducing the cost of post-processing

Active Publication Date: 2016-06-15
ANHUI HAIDE PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many treatment methods for refinery waste gas, but most of them have the problems of complicated treatment steps and poor stability of the treatment process, resulting in different component contents of the exhaust gas after final treatment, and even some of them fail to meet the emission standards and need to be treated again, thereby increasing the treatment cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Add 5 parts of silica gel powder and 4 parts of polyacrylamide to 120 parts of n-butanol, heat to reflux state for 10 minutes, then add 5 parts of calcium stearate and 2 parts of sodium silicate, and continue reflux for 5 minutes , to obtain material I;

[0015] (2) Add 10 parts of sodium carboxymethyl cellulose and 8 parts of polyoxyethylene lauryl ether to 800 parts of water, stir to form a uniform solution, then add 4 parts of glucoside and 1 part of urea, mix well and place at 0-5°C Stand still for 8h to obtain material II;

[0016] (3) Add material I, 15 parts of fumed white carbon black, 12 parts of nano-montmorillonite powder, 10 parts of polyaluminum chloride, 6 parts of molecular sieve former powder and 8 parts of ferric sulfate in material II, add in the ball mill after mixing evenly, Ball milling to a fineness of less than 50 μm.

Embodiment 2

[0018] (1) Add 8 parts of silica gel powder and 5 parts of polyacrylamide to 150 parts of n-butanol, heat to reflux state and heat preservation treatment for 10 minutes, then add 3 parts of calcium stearate and 3 parts of sodium silicate, and continue reflux heat preservation treatment for 5 minutes , to obtain material I;

[0019] (2) Add 12 parts of sodium carboxymethyl cellulose and 6 parts of polyoxyethylene lauryl ether to 1000 parts of water, stir to form a uniform solution, then add 6 parts of glucoside and 2 parts of urea, mix well and put it at 0-5°C Stand still for 8h to obtain material II;

[0020] (3) Add material I, 20 parts of fumed white carbon black, 10 parts of nano-montmorillonite powder, 15 parts of polyaluminum chloride, 8 parts of molecular sieve former powder and 5 parts of ferric sulfate in material II, add in the ball mill after mixing evenly, Ball milling to a fineness of less than 50 μm.

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Abstract

The invention discloses washing liquor for refinery waste gas primary treatment, and relates to the technical field of waste gas treatment. The washing liquor is prepared from, by weight, 15-20 parts of fumed silica, 10-15 parts of nanometer montmorillonite powder, 10-15 parts of polyaluminum chloride, 8-12 parts of sodium carboxymethyl cellulose, 6-10 parts of molecular sieve raw powder, 6-10 parts of polyoxyethylene lauryl ether, 5-8 parts of silica-gel powder, 5-8 parts of ferric sulfate, 4-6 parts of glucoside, 4-6 parts of polyacrylamide, 3-5 parts of calcium stearate, 2-4 parts of sodium silicate, 1-2 parts of urea, 100-150 parts of n-butanol and 800-1,000 parts of water. According to the washing liquor for the refinery waste gas primary treatment, by means of flocculation and adsorption principles, partial organic matter in waste gas is removed to the maximum extent, the purpose of primary treatment is achieved, and therefore aftertreatment difficulty and aftertreatment cost are reduced.

Description

Technical field: [0001] The invention relates to the technical field of waste gas treatment, in particular to a washing liquid for primary treatment of waste gas in refineries. Background technique: [0002] Refinery waste gas is mainly discharged from heating furnaces and chimneys, as well as tail gas discharged from heating and burning fuel through refining. The main pollutants are nitrogen oxides and sulfur dioxide. If the exhaust gas is directly discharged into the air, it will directly affect the air quality and pollute the environment. Therefore, the treatment and emission standards of refinery exhaust gas have become increasingly strict in recent years. At present, there are many treatment methods for refinery waste gas, but most of them have the problems of complicated treatment steps and poor stability of the treatment process, resulting in different component contents of the exhaust gas after final treatment, and even some of them fail to meet the emission standard...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/52C02F1/54C02F1/56
CPCC02F1/28C02F1/281C02F1/283C02F1/285C02F1/5236C02F1/5245C02F1/54C02F1/56
Inventor 黄帮义
Owner ANHUI HAIDE PETROCHEM
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