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

An enhanced hydration separation using porous particles 4 /co 2 Methods

A porous particle, hydration separation technology, applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve problems such as clogged beds and nozzles, increase output value, increase mass transfer area, prevent clogged beds and The effect of the nozzle

Active Publication Date: 2021-11-09
SOUTH CHINA UNIV OF TECH +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is also to improve the traditional hydration separation process caused by hydrate accumulation to block the phenomenon of bed and nozzle

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
  • An enhanced hydration separation using porous particles <sub>4</sub> /co <sub>2</sub> Methods
  • An enhanced hydration separation using porous particles <sub>4</sub> /co <sub>2</sub> Methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] This embodiment adopts the above-mentioned device. Among them, the hydrophobic foam metal is selected as the porous particle, the aqueous solution is pure water, and the mixed gas component is CH 4 / CO 2 (where CH 4 Volume content 67%). In this system, firstly, 3kg of aqueous solution is mixed with 0.1kg of hydrophobic silicon dioxide, and dry water is obtained after high-speed shearing, which is then filled into hydrophobic metal foam. 5 kg of porous granules are added. Set the mixed flow rate to 100m / h. Ethylene glycol aqueous solution is the cold source medium, and pure aqueous solution is the heat source medium. Adjust the fluidized bed temperature. The operating temperature of the fluidized bed reactor was set at 0.4°C, and the operating temperature of the cyclone separator was set at 25°C. The operating pressure is 5.66MPa. At this time CH 4 Enriched in the gas phase, hydrates are decomposed in the cyclone separator, CO 2 Precipitation, porous particles ...

Embodiment 2

[0032] This embodiment adopts the above-mentioned device. Among them, carbon nanotubes are selected as porous particles, pure water is selected for aqueous solution, and CH is selected for mixed gas components. 4 / CO 2 (where CH 4 Content 50%). In this system, first put the carbon nanotubes into the aqueous solution, and let them stand for 5 hours at 0° C. in an atmosphere of 2 MPa to prepare porous particles with a water content of 80%. 2 kg of prepared porous granules are added. Set the mixed flow rate to 185m / h. Ethylene glycol aqueous solution is the cold source medium, and pure aqueous solution is the heat source medium. Adjust the fluidized bed temperature. The operating temperature of the fluidized bed reactor was set at 0.4°C, and the operating temperature of the cyclone separator was set at 25°C. The operating pressure is 5.66MPa. At this time CH 4 Enriched in the gas phase, hydrates are decomposed in the cyclone separator, CO 2 Precipitation, porous particl...

Embodiment 3

[0034] This embodiment adopts the above-mentioned device. Among them, hydrophobic foamed aluminum is selected as the porous particle, and 0.12wt% [BMIm] BF is selected for the aqueous solution 4 (1-butyl-3-methylimidazolium tetrafluoroborate) + 5wt% TBAB, the mixed gas component selects CH 4 / CO 2 (where CH 4 Content 50%). In this system, first put 0.5kg of hydrophobic aluminum foam into the aqueous solution, and let it stand in an atmosphere of 2MPa at 0°C for 6h to prepare porous particles with a water content of 80%. 2.5 kg of porous granules are added. Set the mixed flow rate to 120m / h. Ethylene glycol aqueous solution is the cold source medium, and pure aqueous solution is the heat source medium. Adjust the fluidized bed temperature. The operating temperature of the fluidized bed reactor was set at 0.4°C, and the operating temperature of the cyclone separator was set at 25°C. The operating pressure is 4MPa. At this time CH 4 Enriched in the gas phase, hydrates a...

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 discloses a method of using porous particles to strengthen hydration to separate CH 4 / CO 2 Methods. The method is to fill the porous particles impregnated with the binding solution into the fluidized bed reactor, CH 4 / CO 2 The mixed gas enters the fluidized bed reactor continuously through the gas distributor, and the temperature of the bed layer is controlled through the variable diameter conduit. CO 2 Diffuse from the outer surface of the porous particles to the inside, and react with the binding solution to form hydrates. Remaining CH 4 Enriched in the gas phase, loaded with CO 2 The solid particles of hydrate are subjected to high temperature in the cyclone separator to release CO 2 After that, the circulation enters the fluidized bed reactor and participates in CH again 4 / CO 2 Mixture separation. At the same time, a heat pump is used to build a cold-hot stream linkage system to provide heat for the formation-dissociation of hydrates. The method overcomes the problem of low efficiency of the existing hydration separation, starts from the enhancement of mass transfer, improves the operation process of the existing process, and forms an efficient and green hydration separation method.

Description

technical field [0001] The invention relates to the field of mixed gas separation, in particular to a method of using porous particles to strengthen hydration to separate CH 4 / CO 2 Methods. Background technique [0002] In the traditional hydration reaction, the hydrate film formed by the reaction will cover the surface of the liquid, hindering the continuous contact between the gas phase and the water phase, and inhibiting further hydration reaction. The slow growth kinetics of the gas hydration process restricts the application of various hydrate derivative technologies, so scholars are committed to the development of enhanced gas hydration process technologies. The introduction of dynamic strengthening technologies such as conventional stirring, spraying, bubbling and new reciprocating impact increases the energy consumption of the hydration reaction process and limits the feasibility of its scale-up application; if special materials are used to strengthen the hydratio...

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 Patents(China)
IPC IPC(8): B01D53/78B01D53/96B01D53/62
CPCB01D53/62B01D53/78B01D53/96B01D2257/504Y02C20/20
Inventor 樊栓狮尤莎莉郎雪梅王燕鸿李遵照薛倩王晓霖孟凡飞王海波
Owner SOUTH CHINA UNIV OF TECH
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