Methods of applying a sorbent coating on a substrate, a support, and/or a substrate coated with a support

An adsorbent, substrate technology, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve problems such as difficulty in developing efficient and cost-effective carbon dioxide capture/separation technology

Inactive Publication Date: 2014-07-30
BASF CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] As evidenced by some of the references discussed above, it has been difficult to develop efficient and cost-effective CO2 capture / separation technologies

Method used

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  • Methods of applying a sorbent coating on a substrate, a support, and/or a substrate coated with a support
  • Methods of applying a sorbent coating on a substrate, a support, and/or a substrate coated with a support
  • Methods of applying a sorbent coating on a substrate, a support, and/or a substrate coated with a support

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] A slurry was made by mixing 45.22g alumina with 4.52g alumina hydroxide and 169.48g water. This slurry was coated onto a honeycomb structure made of cordierite, thereby applying a 1.15 g / in 3 alumina coating. This alumina-coated honeycomb structure was then infiltrated with polyethyleneimine (PEI) by immersing in an aqueous solution with 20% PEI. The cores thus prepared were tested for CO 2 Adsorption capacity (described below in Example 3 - Adsorption Test), and it was found that 4.20 mmol CO 2 / g PEI.

Embodiment 2

[0108] Adsorption test procedure

[0109] Make containing 400ppm CO 2 Air mixed with 1% water was flowed through the adsorbent-coated honeycomb structure at a velocity of 2.5 m / s at 35 °C until the sample was covered with CO 2 until saturated. CO was desorbed by flowing nitrogen with 1% water through the core at 110 °C 2 . CO was readsorbed under the same conditions as the previous adsorption 2 .

[0110] More detailed CO 2 Adsorption test procedure

[0111] Before performing the adsorption measurement, each sample was subjected to the following treatment: the sample was exposed to 400ppm CO 2 Air flow with 1% water until the sample is CO 2 until saturated. The sample is a sorbent impregnated onto a support coated on a substrate, such as PEI on alumina coated on a ceramic honeycomb structure. The sample was then cleaned of CO by flowing nitrogen gas containing 1% water over the sample at 2.5 m / s and a temperature of 110 °C 2 , until no longer released CO 2 until. ...

Embodiment 3

[0113] Samples were produced using a double dip coating method. The first coating was produced by coating a water-based slurry having the composition listed below onto the ceramic honeycomb structure. Each sample was fabricated using a different alumina (alumina A to K) with different surface area and pore structure properties.

[0114] First coat composition:

[0115] a. Alumina 92%

[0116] b. Binder (alumina sol) 6%

[0117] c. Dispersant 2%

[0118] This coating is calcined to make it adhere. The weight of this first coating was about 1.2 g / in3 honeycomb structure.

[0119] Polyethyleneimine was applied as a second dip from aqueous solution to give a total coating with an organic fraction of 26% to 39% (see table). (Organic fraction is PEI weight divided by (alumina plus binder weight), excluding dispersant since it was removed by the calcination step).

[0120] image 3 The table shown summarizes the properties of aluminas A to K used as supports for testing sorbe...

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Abstract

Methods of applying a sorbent coating on a substrate, a support, and/or a substrate coated with a support are described. One of the methods comprises: (i) optionally, preparing the substrate coated with the support by pre-treating the substrate with a slurry, wherein the slurry comprises: a. solvent, b. a binder, c. the support, and d. optional dispersant; and (ii) treating the substrate, the support, and/or the substrate coated with the support, with a sorbent; wherein the substrate is (a) a monolithic or honeycomb structure made of ceramic, metal, or plastic; (b) a polyurethane foam, a polypropylene foam, a polyester foam, a metal foam, or a ceramic foam; or (c) woven or non-woven plastic or cellulosic fibers, wherein the support is alumina, silica, silica-alumina, titania, zirconia, carbon, zeolite, metal-organic framework (MOF), or combinations thereof, and wherein the sorbent adsorbs carbon dioxide and the sorbent is selected from the group consisting of amines; monoethanolamine; diethanolamine; polyethylenimine (PEI); aminopropyltrimethoxysilane; polyethyleneimine-trimethoxysilane; amide or amine containing polymers including nylon, polyurethane, polyvinylamine, or melamine; and combinations thereof.

Description

[0001] This application requires October 6, 2011 The U.S. provisional patent application filed on 61 / 543,999 number of priority , said U.S. Provisional Patent Application is hereby incorporated by reference in its entirety. technical field [0002] This application describes methods of applying sorbent coatings to substrates, supports, and / or support-coated substrates. Adsorbents in the methods described herein can adsorb gases such as carbon dioxide. Carbon dioxide can be adsorbed from air or from point sources of carbon dioxide such as exhaust gases or intentionally produced carbon dioxide, or mixtures thereof. The adsorbents described herein can be used for gas purification or gas separation. Background of the invention [0003] US Patent 7,378,561 discusses a process for the production of methanol and dimethyl ether using air as the sole source of material. The process involves separating the water contained in atmospheric air (ie, moisture in the air) and carbon ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04B01D39/14B01D53/62B01J20/00C01B32/50
CPCB01D53/02B01D2253/20B01D2253/202B01D2253/25B01D2253/306B01D2253/311B01D2253/34B01D2257/504B01J20/3204B01J20/3236B01J20/3238B01J20/3251B01J20/3257B01J20/327B01J20/3272Y02C20/40B01D53/04B01D53/62B01J20/3231
Inventor M·比洛M·杜里拉J·考夫曼P·H·特兰
Owner BASF CORP
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