[Ammonia Synthesis Knowledge] Daily Question (59) 2010.02.28
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When replying to a post, please hide the answers; responses without hiding them will not be graded in principle. Specific hiding method: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 Fill-in-the-blank questions: 1. Common ion exchange devices fall into three categories: ( ), ( ), and ( ). 2. Ion exchange resins are composed of ( ) and ( ). 3. The highest temperature that a strongly basic anion exchange resin can withstand is ( ) °C. 4. The purpose of installing a carbon remover at the outlet of the cation exchange column is ( ). Reference answers will be available after responding: 1. Fixed bed with co-current regeneration, fixed bed with counter-current regeneration, fluidized bed. 2. The polymer backbone with a cross-linked network structure can effectively replace ionic groups. 3, 60. 4. Remove free CO2 from the effluent of the cation exchange resin bed (the effluent from this bed is acidic, and CO2 exists in a free state).
1. Single-bed, multi-bed, double-bed； 2. Resin matrix, active exchange groups ； 3, 60 ； 4. Purification
1. Co-current regeneration fixed bed, counter-current regeneration fixed bed, floating bed 2. Polymer backbone with a cross-linked network structure, exchangeable ion groups 3. 60 4. Removal of free CO2 from the effluent of the cation exchange resin bed (the effluent from this bed is acidic, and CO2 exists in a free state)
1. Co-current regeneration fixed bed, counter-current regeneration fixed bed, floating bed. 2. The polymer backbone with a cross-linked network structure can effectively replace ionic groups. 3, 60. 4. Remove free CO2 from the effluent of the cation exchange resin bed (the effluent from this bed is acidic, and CO2 exists in a free state). 1# *aoye613
1. Anion bed, Cation bed, Mixed bed 2. Matrix, Functional group 3. 60 4. Adsorption
Fill-in-the-blank questions: 1. Common ion exchange equipment includes three types: (counter-current regeneration fixed bed), (co-current regeneration fixed bed), and (floating bed). 2. Ion exchange resins are composed of (a polymer backbone with a cross-linked network structure) and (ion-exchangeable groups). 3. The highest temperature that strongly basic anion exchange resins can withstand is (60)°C. 4. The purpose of installing a carbon remover at the outlet of the cation bed is to remove free CO2 from the water coming out of the cation bed. 1# *aoye613
1. Co-current regeneration fixed bed, counter-current regeneration fixed bed, floating bed 2. Polymer backbone with a cross-linked network structure, exchangeable ion groups 3. 60 4. Removal of free CO2 from the effluent of the cation exchange resin bed (the effluent from this bed is acidic, and CO2 exists in a free state), in order to extend the operating cycle of the anion exchange resin bed
This post was last edited by snowdfr on 2010-2-28 09:05. 1. The common types of ion exchange equipment include (reverse osmosis), (ultrafiltration), and (mixed-bed) systems. 2. Ion exchange resins are composed of (anion resins) and (cation resins). 3. The highest temperature that strongly basic anion exchange resins can withstand is (90) °C. 4. The purpose of installing a carbon remover at the outlet of the anion exchange column is to remove carbon dioxide.
1. The common types of ion exchange equipment include (reverse osmosis), (ultrafiltration), and (mixed-bed) systems. 2. Ion exchange resins are composed of (anion resins) and (cation resins). 3. The highest temperature that strongly basic anion exchange resins can withstand is (90) °C. 4. The purpose of installing a carbon remover at the outlet of the anion exchange column is to remove carbon dioxide.
1. Co-current regeneration fixed bed, Counter-current regeneration fixed bed, Floating bed 2. Polymer skeleton with a cross-linked network structure, Exchangeable ion groups 3. 60 4. Removal of free CO2 from the effluent of the cation exchange resin bed (the effluent from this bed is acidic, and CO2 exists in a free state), in order to extend the operating cycle of the anion exchange resin bed
1. Co-current regeneration fixed bed, counter-current regeneration fixed bed, floating bed 2. Polymer backbone with a cross-linked network structure, exchangeable ion groups 3. 60 4. Removal of free CO2 from the effluent of the cation exchange resin bed (the effluent from this bed is acidic, and CO2 exists in a free state)