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Pretreatment method for co-processing of organic waste liquid in cement kiln

A technology of organic waste liquid and cement kiln, which is applied in the direction of combustion method, combustion type, incinerator, etc., can solve the problems such as the type of waste liquid that is not mentioned, and achieve the effect of saving fuel

Active Publication Date: 2013-12-18
DALIAN DONGTAI INDAL WASTE TREATMENT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] "Research on Combustible Hazardous Waste Used as Cement Fuel": mentions the mixing process of waste liquid with good miscibility, but does not mention the specific type of waste liquid, as well as the specific pretreatment method and related process indicators before entering the cement kiln

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Treatment of Alcohol-Containing Organic Waste Liquid

[0027] The alcohol-containing organic waste liquid described in Example 1 comes from the organic chemical production industry. Three kinds of alcohol-containing organic waste liquids are produced during the production process, which are respectively hexanediol-containing waste liquid and ethanol-containing waste liquid. , Butanol-containing waste liquid, for detection and analysis, the heat value of waste liquid containing hexanediol is 7500kcal / kg, the flash point is 148°C, and the pH value is 6.8; the heat value of waste liquid containing ethanol is 2300kcal / kg, the flash point is 18°C, and the pH value is 6.8. The value is 9; the calorific value of butanol-containing waste liquid is 3700kcal / kg, the flash point is 45°C, and the pH value is 6.8.

[0028] 1. The pretreatment method for alcohol-containing organic waste liquid is as follows:

[0029] (1) Compatibility with the alcohol-containing organic waste liquid...

Embodiment 2

[0034] Pretreatment of ketone-containing organic waste liquid.

[0035] The ketone-containing organic waste liquid described in Example 2 comes from the organic chemical production industry. Three kinds of ketone-containing organic waste liquids are produced during the production process, which are respectively cyclohexanone-containing waste liquid and cycloheptanone-containing waste liquid. The waste liquid and the waste liquid containing heptanone were detected and analyzed. The waste liquid containing cyclohexanone has a calorific value of 4200kcal / kg, a flash point of 54°C, and a pH value of 8.5; the waste liquid containing cycloheptanone has a calorific value of 6800kcal / kg and a flash point of 61°C, pH value 9.5; Heptanone-containing waste liquid heat value 5500kcal / kg, flash point 50°C, pH value 9.

[0036] 1. The pretreatment method for ketone-containing organic waste liquid is as follows:

[0037] (1) Compatibility with the ketone-containing organic waste liquid firs...

Embodiment 3

[0042] Mixed pretreatment of organic waste liquid containing alcohols and ketones.

[0043]The organic waste liquids containing alcohols, ketones, alcohols, and ketones described in Example 3 come from the organic chemical production industry. The three kinds of organic waste liquids containing alcohols and ketones produced during the production process are respectively Glycerol waste liquid, propanol-containing waste liquid, and cycloheptanone-containing waste liquid were tested and analyzed. Among them, the calorific value of the glycerin-containing waste liquid was 9800kcal / kg, the flash point was 192°C, and the pH value was 8; the waste liquid containing propanol The calorific value of the liquid is 3800kcal / kg, the flash point is 21°C, and the pH value is 9.5; the calorific value of waste liquid containing cycloheptanone is 6800kcal / kg, the flash point is 61°C, and the pH value is 9.5.

[0044] 1. The pretreatment method for organic waste liquid containing alcohols, keton...

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Abstract

The invention discloses a pretreatment method for co-processing of organic waste liquid in a cement kiln. The organic waste liquid with good mutual solubility, stability and dispersity is obtained through analysis, compatibility treatment, mixing, stabilizing, settling, filtering and the like, then the organic waste liquid is treated by the cement kiln, and the organic compounds in the organic waste liquid containing alcohols and ketones are sufficiently burnt in the cement kiln at the sealed alkaline environment, so the secondary damage to the environment is avoided. The method has the advantages that 10% to 40% of cement kiln fuel is replaced, and the secondary pollution caused by the organic waste liquid containing alcohols and ketones is avoided, so the energy-saving and environment-friendly purposes are realized; and the harmless treatment of the organic waste liquid containing alcohols and ketones in the cement kiln can meet the requirements of harmlessness, quantity reduction and resource utilization, and meanwhile, the economic benefits and environmental benefits are realized.

Description

technical field [0001] The invention belongs to the technical field of harmless treatment of industrial waste liquid, and in particular relates to a pretreatment method for co-processing of organic waste liquid and cement kiln. Background technique [0002] Liquid organic waste liquid is a hazardous waste, which refers to the waste generated during the production, configuration and use of the organic chemical industry. Generally, such waste has a certain calorific value. The main treatment methods of liquid organic waste are distillation recovery and incineration. The organic waste that cannot be recovered by distillation needs to be treated by incineration. This method may pollute the atmosphere, endanger human health, and also cause waste of energy. This patent mainly describes the harmless treatment of liquid waste, and can also provide part of the energy fuel for cement production. At present, many solid wastes are harmlessly treated in cement kilns, and at the same tim...

Claims

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Application Information

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IPC IPC(8): F23G7/04
Inventor 刘晶高麒麟李新磊王颖盖世男姜璐徐贻成宋奎胜官香元张晓琳王梦简新
Owner DALIAN DONGTAI INDAL WASTE TREATMENT
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