Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Residual liquid recovery system of PTA hydrogen recovery device

A recovery device and recovery system technology, applied in the direction of hydrogen separation, etc., can solve the problems of waste, increase the cost of environmental protection treatment, etc., achieve the effect of constant temperature, eliminate hydrogen accumulation and explosion, and avoid personnel poisoning

Pending Publication Date: 2020-11-20
HENGLI PETROCHEM DALIAN
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual treatment method is to discharge the residual liquid directly into the waste liquid well, and the direct discharge of this part of the organic matter into the sewage will greatly increase the cost of environmental protection treatment, cause unnecessary waste, and cause other potential risks

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
  • Residual liquid recovery system of PTA hydrogen recovery device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of raffinate recovery system of PTA hydrogen recovery device, comprises raffinate discharge tank 26, is also provided with raffinate recovery tank 28, and raffinate discharge tank is connected with described raffinate recovery tank through raffinate main line 27; Described raffinate recovery The side of the tank is provided with a raffinate delivery pump 16, and the raffinate is pumped to the PTA production oxidation device through the raffinate delivery pump; the raffinate recovery tank is also provided with a liquid level gauge 11, a gas phase venting pipeline, an overflow discharge pipeline 25, an on-site pressure Table 9. Tank bottom discharge valve 12. When there are more than two residual liquid discharge tanks, a residual liquid isolation valve 1 is provided before the discharge pipelines of each residual liquid discharge tank converge to the main line. The residual liquid recovery tank is an atmospheric tank. The overflow discharge pipeline is an inverte...

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 belongs to the technical field of PTA production, and particularly relates to a residual liquid recovery system of a PTA hydrogen recovery device. The residual liquid recovery system comprises a residual liquid discharging tank and is further provided with a residual liquid recycling tank, and the residual liquid discharging tank is connected with the residual liquid recycling tank through a residual liquid main pipeline; a residual liquid conveying pump is arranged on the side surface of the residual liquid recycling tank, and residual liquid is conveyed to a PTA production oxidation device through the residual liquid conveying pump; and the residual liquid recycling tank is also provided with a liquid level meter, a gas phase emptying pipeline, an overflow discharge pipeline, a field pressure gauge and a tank bottom discharge valve. The residual liquid recovery system can solve the problem of existing residual liquid recovery, has residual liquid flow continuous controllability and constant temperature anti-freezing performance, eliminates the possibility of hydrogen gathering explosion from the source, and greatly reduces the possibility of environmental pollutioncaused by manual operation and the volatility of toxic and harmful substances under non-closed conditions.

Description

technical field [0001] The invention belongs to the technical field of PTA production, in particular to a residual liquid recovery system of a PTA hydrogen recovery device. Background technique [0002] In order to maximize the utilization of effective resources, the current PTA industry will reuse effective resources. Under normal circumstances, about 15% of the PTA hydrogenation reactor participates in the reaction, and the remaining hydrogen enters the hydrogen recovery system after flashing through the first crystallizer. This part of the gas can only be recovered after cooling down the temperature and pressure in several stages such as the hydrogen recovery reactor, so this process will produce condensed residual liquid. There are a variety of organic substances in the generated raffinate because they have participated in the process reaction. The raffinate is produced every moment with the operation of the hydrogen recovery system, and this part of organic matter will...

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): C01B3/50
CPCC01B3/50
Inventor 崔洪超沈宇鑫
Owner HENGLI PETROCHEM DALIAN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap 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