Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

System and method for treating rapid coal pyrolysis effluent

A waste water and pyrolysis technology, applied in chemical instruments and methods, biological water/sewage treatment, heating water/sewage treatment, etc., can solve the problems of high treatment cost, high equipment requirements, and inability to be used on a large scale to achieve high efficiency Effects of energy saving, emission reduction and process structure optimization

Pending Publication Date: 2017-01-04
SHENWU TECH GRP CO LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This limits the single application of biological treatment, often only used in the pretreatment of wastewater
[0004] Physicochemical method can be used not only as a method of wastewater pretreatment, but also can be applied to the advanced treatment of wastewater. It has the advantages of low requirements on wastewater quality, high treatment load, and high treatment efficiency, but the treatment cost is high and the requirements for equipment are high. , so cannot be used on a large scale

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for treating rapid coal pyrolysis effluent
  • System and method for treating rapid coal pyrolysis effluent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] This embodiment provides a system for processing and processing coal rapid pyrolysis wastewater, and its structure diagram is as figure 1 Shown. Specifically include: wastewater homogenization tank 1, grease trap 2, waste heat recovery device 3, steam stripper 4, A 2 O Biochemical reaction tank 5, sedimentation tank 6, alkaline washing tank 7, phenol storage tank 8, lye dosing tank 9, ammonia storage tank 10 and dosing machine 11.

[0074] The wastewater homogenization tank 1 is equipped with a submersible mixer, which can better homogenize the wastewater. The wastewater homogeneous tank 1 is provided with a homogeneous wastewater inlet 1-1 and a homogeneous wastewater outlet.

[0075] The grease trap 2 is provided with a pyrolysis wastewater inlet, a demulsifier inlet, a degreasing wastewater outlet, and a sludge outlet 2-1. The pyrolysis wastewater inlet is connected to the homogeneous wastewater outlet of the wastewater homogenization tank 1. The top and bottom of the gr...

Embodiment 2

[0082] This embodiment provides a method for treating coal rapid pyrolysis wastewater by using the system provided in Embodiment 1. Specific process flow such as figure 2 Shown.

[0083] The water quality of the coal rapid pyrolysis wastewater used in this embodiment is as follows:

[0084] COD=15000mg / L, BOD=6090mg / L, ammonia nitrogen=1800mg / L, volatile phenol=11000mg / L, pH=10.

[0085] After the wastewater is discharged from the rapid pyrolysis system, it enters the wastewater homogenization tank 1 for centralized treatment. The residence time of the pyrolysis wastewater in the wastewater homogenization tank 1 is 8h.

[0086] The wastewater discharged from the wastewater homogenization tank enters the grease trap 2. The dosing machine 11 adds a demulsifier to the grease trap 2, and the oil scraper and the mud scraper remove the slick oil and sludge in the wastewater respectively.

[0087] The waste water discharged from the grease trap 2 enters the waste heat recovery device 3 to...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a system and method for treating rapid coal pyrolysis effluent. The system comprises an oil removing unit, a dephenolization and deamination unit, a waste heat recovery unit, a biochemical treatment unit and an alkaline wash crystallization unit, the dephenolization and deamination unit is respectively connected with the oil removing unit and the waste heat recovery unit, and the waste heat recovery unit is respectively connected with the biochemical treatment unit and the alkaline wash crystallization unit. The system and method efficiently treats effluent generated by rapid pyrolysis in a targeted manner, so that the effluent meets requirements of indirect discharge standards, available resources in the effluent are recovered, and the system and method has energy saving and emission reduction effects.

Description

Technical field [0001] The invention relates to industrial wastewater treatment, in particular to a system and method for processing coal rapid pyrolysis wastewater. Background technique [0002] Fast pyrolysis of low-rank coal is a new type of coal pyrolysis technology, which can produce semi-coke, coal gas, and tar. However, waste water is generated in the process of rapid coal pyrolysis, pyrolysis gas recovery and purification, and chemical product recovery and purification, which contains a large number of pollutants, such as volatile phenol, cyanide, and ammonia nitrogen. The pollutants here are highly toxic, difficult to decompose, and have high treatment costs. Directly discharged into natural water bodies without treatment will seriously pollute the environment and indirectly endanger human health. For this type of wastewater, the commonly used treatment technologies include physical chemistry, biological treatment, and chemical treatment, including flocculation, adsorpt...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/16C02F101/34
CPCC02F9/00C02F1/02C02F1/20C02F1/40C02F3/00C02F3/301C02F2101/16C02F2101/345
Inventor 蔡先明张安强贾懿曼任浩华刘璐吴道洪
Owner SHENWU TECH GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com