Waste lye treatment method, carbon black reduction method and device thereof

A treatment method and technology for treatment devices, which are applied in water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve equipment corrosion, low stable operation rate of carbon black water system, and high carbon black output To reduce the workload, improve the oxidative combustion effect, and improve the smooth running rate

Active Publication Date: 2018-01-05
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0034] The purpose of the present invention is to provide a method for treating waste caustic soda, a method for reducing carbon black and its device, which are used to solve the problems of high carbon black output of tar gasification equipment, low stable operation rate of carbon black water system, and serious equipment corrosion, reducing CO2 content, improve the yield of synthesis gas produced by the existing process and the stable operation rate of the device, and at the same time thoroughly and harmlessly treat the condensation waste lye, and solve the problem of waste lye treatment in the butanol unit

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  • Waste lye treatment method, carbon black reduction method and device thereof
  • Waste lye treatment method, carbon black reduction method and device thereof
  • Waste lye treatment method, carbon black reduction method and device thereof

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Embodiment Construction

[0083] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0084] Such as figure 1 As shown, it is a schematic diagram of the technological process of adding waste lye to process water, and then performing partial oxidation reaction and refining.

[0085] exist figure 1 Including: process water tank 1, tar storage tank 2, oil-water mixer 3, gasifier 4, carbon washing tower 5, carbon black treatment system 6, heat recovery system 7, desulfurization and decarbonization system 8 and tar preheater 9 , these constituent units together constitute a syngas plant, and after the condensation waste caustic liquor participates in the gasification reaction in the gasifier 4 of the syngas plant, the amount of by-product carbon black in the syngas plant is reduced.

[0086] Process water tank 1 is a container for storing process water of gasification raw material...

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Abstract

The invention discloses a spent lye processing method, a method for reducing carbon black and a device therefor. The spend lye processing method includes the following steps of: mixing a spent lye produced by a butyl octanol device with process water; mixing the mixed process water with a tar in an oil-water mixer, then entering a vapourizing furnace, carrying out oxidation reaction, and generating crude synthetic gas; sending the crude synthetic gas into a carbon washing tower, washing the crude synthetic gas with water and removing the carbon, entering a desulphurization and decarburization system, and carrying out continuous refining; and sending carbon black water at the bottom of the carbon washing tower into a carbon black water system and filtering and removing the carbon black, and returning ash-water into the carbon washing tower for recycle.

Description

technical field [0001] The invention belongs to the technical field of petrochemical production, and in particular relates to a waste lye treatment method, a carbon black reduction method and a device thereof. Background technique [0002] (1) Generation and treatment of waste lye [0003] During the operation of the octanol unit condensation system of the butanol unit, a stream of waste sodium hydroxide solution is discharged continuously. The flow rate of this stream of waste lye is 500-1000kg / hr, the temperature is 40-50°C, and the sodium hydroxide content 0.5~1.5%wt, sodium butyrate content is 3.0~5.5%wt, and also contains butyraldehyde and the intermediate reaction product of butyraldehyde to octanol conversion, so the COD concentration reaches 40000~100000mg / l, and sodium butyrate is Common treatment methods for water-soluble substances are not effective, which is an environmental protection problem commonly faced by domestic and global butyl-octyl alcohol industries....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/36C01B3/50C01B3/52C02F1/00
Inventor 凌人志王福宝徐志果方文章胥占风龚福斌高晓宇张庆楠王楠郭立国李彩霞张新宪
Owner PETROCHINA CO LTD
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