High-strength gas purifying and separating adsorbent as well as preparation and application thereof

A gas purification and adsorbent technology, applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of uneven ion monolayer dispersion, complex process, easy slag drop, etc., and achieve economical practicability and high strength. , high-efficiency separation characteristics, economical and practical effect

Active Publication Date: 2010-12-29
DALIAN HAIXIN CHEM IND
View PDF7 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the agent has Cu + Ions are unevenly dispersed in a single layer on the carrier, and the fatal defect of poor strength is that the strength of the fresh agent can only reach about 30 Newtons. Therefore, it is easy to pulverize and slag during the long-term use of industrial applications, and often occurs during use. Problems such as blocked pipelines and undurability directly affect the wider industrialization and practical application of adsorbents
[0014] CN1103816A (1995) discloses a kind of NaY and kaolin phase mixed press molding, with SiO 2 treated with NaOH aqueous solution to make a composite carrier, and then loaded Cu by exchange and impregnation 2+ ions, prepared by reduction into Cu(1)—Y zeolite adsorbent, the process is complicated, and the adsorption performance and strength of the adsorbent cannot be effectively improved.
[0015] CN1113828A (1995) discloses a kind of industrial water glass aluminum hydroxide or aluminum sulfate and a certain amount of Cu ++ and Mg ++ Ingredients, using crystallization directing agent technology, synthesized containing Ca ++ , Mg ++ ionic Y-type zeolite, and then Cu(NO 3 ) 2 exchanged, impregnated to prepare the adsorbent, which only adds Ca ++ , Mg ++ Ions in Y-type zeolite failed to effectively improve the separation performance and strength of the adsorbent
[0016] The above technologies all start with how to load Cu ions, the main active component. They only improve the separation performance of the adsorbent and improve the preparation technology, but they do not focus on solving the actual problems encountered in industrial applications. Key problems such as poor wear strength and poor durability must be solved in order to apply high-performance adsorbents to various fields of industrialization and play an effective role in industrial production practices. This long-standing technology problem

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Weigh 220 grams of NaY fine powder, dissolve in 0.1-0.2mol concentration of Cu(NO 3 ) 2 Exchange fluid, at room temperature, after 3-4 times of exchange, filtration and washing. The filter cake is dried at 120°C for 24 hours, then programmed to heat up to 500°C at 10°C / min, and roasted for 1-2 hours for later use, which is recorded as Cu(II)-Y;

[0039] Weigh 28.2 grams of roasted sample Cu(II)-Y, mix with 20.3 grams of cuprous chloride (analytical pure), and then mix with 0.56 grams of sheepsweet soil with a solid content of 80%, 13.2 grams of pseudoboehmite, 2 grams of CeCl 3 .7H 2 O mix, grind and mix, and add 26ml of hydrochloric acid solution with a mass concentration of 2%, knead, extrude, then dry at 120°C, and roast at 400°C for 4 hours. The adsorbent is designated as HCU-1. The analysis results are shown in Tables 1 and 3.

Embodiment 2

[0041] Weigh 938.5 grams of NaY fine powder, 15 grams of attapulgite, CuCl 2 670 grams of reagents, 440 grams of aluminum glue (solid content 70%) are mixed evenly, and 150 grams of mixed rare earth chlorides rich in cerium oxide (by weight percentage, wherein CeO 2 Content 60%, LaO 3 content of 30%, and the remaining 10% is Pr, Nd, Sm, Eu, etc.) dissolved in hydrochloric acid aqueous solution with a mass concentration of 2%, added to the mixture, kneaded, extruded, and formed into a diameter of Ф1.5mm and a length of 2-3mm The strips were dried at 110°C for 24 hours, then heated to 450°C at a rate of 10°C / min, and roasted for 4 hours. The adsorbent sample was designated as HCU-2. The analysis and evaluation results are shown in Tables 1 and 3.

Embodiment 3

[0043] Weigh 13.2 grams of pseudo-boehmite, 2 grams of kaolin, 29.2 grams of NaY powder, and Cu(NO 3 ) 2 .3H 2 Mix 45 grams of O reagent, after grinding and refining, add nitric acid solution with a mass concentration of 3% and knead to shape, extrude and dry in the air, dry at 120°C for 24 hours, and then use CeCl 3 .7H 2 O, CeCl at a concentration of 0.05 mol 3 After soaking and drying the solution for many times, the temperature was programmed to rise to 380°C at a rate of 10°C / min and roasted for 4 hours in a muffle furnace.

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

PropertyMeasurementUnit
solid contentaaaaaaaaaa
Login to view more

Abstract

The invention relates to the fields of separation of mixed gas and purification of feed gas and discloses a high-strength gas purifying and separating adsorbent. CeO2 is introduced into a porous carrier, clay and a caking agent which are loaded with main active components to effectively disperse the main active components. The creative improvement point of the invention is that the CeO2 is effectively introduced into the adsorbent so as to improve the dispersibility of the main active component of Cu<+> or Cu<++> ion, improve the occupation ratio of a metal active center on the surface of the carrier, promote the effective complexation of Cu<+> with CO in the reaction and effectively improve the separation performance of the adsorbent. The CeO2 is introduced to promote an effective silicon and aluminum hydroxyl network to be formed among the carrier, the clay and the caking agent, promote the tight combination among the main active components of the metal ion, the carrier and the caking agent, strengthen the bonding of silicon and aluminum hydroxyl and effectively improve the strength which can reach over 100N. The adsorbent has favorable strength, is beneficial to being applied to a pressure swing adsorption (PSA) device and has improved practicability of wide application.

Description

technical field [0001] The invention relates to the field of separation of mixed gas and purification of raw material gas, in particular to an adsorbent, and also relates to the preparation method and application field of the adsorbent. Background technique [0002] With the continuous progress of society and the increasing awareness of environmental protection, how to purify the environment and develop industries is a problem faced by all mankind. Industrialized countries have a lot of industrial waste gas containing CO, which poses a serious threat to the environment. Therefore, recycling CO from such waste gas, reducing carbon emissions, utilizing clean energy, developing a low-carbon economy, and achieving sustainable development have become a topic of great concern and a goal of industrial development. [0003] 1. Recovery and purification of CO from industrial waste gas [0004] The furnace gas produced by the furnace of the steelmaking plant, the blast furnace gas ...

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): B01J20/06B01J20/32B01D53/04
Inventor 孙玉坤杜军金雷孙福楠冯宝生
Owner DALIAN HAIXIN CHEM IND
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap