【Daily Question】Chemical Engineering Principles 277: Counterflow Regenerated Fixed Bed (December 28)
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This post was last edited by “Back to Cambridge” on January 13, 2016, at 16:36. Starting today, the Chemical Engineering Theory section will launch the “Question of the Day” activity, aimed at helping everyone reinforce their fundamental knowledge in chemical engineering. Subsequently, series such as “Principles of Chemical Engineering”, “Mass Transfer and Separation”, “Chemical Thermodynamics”, and “Chemical Process Technology” will also be introduced. We hope for your active participation! Wishing you all a Merry Christmas~~ For replies to the “Question of the Day” activity, answers can be viewed directly; however, the thread will be closed after one day! ! To encourage everyone’s continued participation this year! You get 3 wealth rewards just for participating, and an additional 4 wealth points for correct answers~~~ Short answer question: What are the disadvantages of the counter-current regenerative fixed-bed? 1) The equipment is complex, increasing its manufacturing costs. 2) It is difficult to operate. 3) Strict requirements exist regarding structural design and operating conditions. 4) High standards are required for the water used for replacement; otherwise, the quality of the output water will deteriorate. 5) A large amount of work is required for equipment maintenance
What are the disadvantages of counter-current regenerative fixed-bed reactors? 1) The equipment is complex, increasing the manufacturing costs ； 2) Difficult to operate ； 3) Strict requirements for structural design and operating conditions ； 4) High requirements are placed on the water used for displacement; otherwise, it will degrade the quality of the effluent water ； 5) The equipment maintenance workload is heavy.
) The equipment is complex, increasing the costs associated with its manufacture. 2) It is difficult to operate. 3) Strict requirements exist regarding structural design and operating conditions. 4) High standards are required for the water used for replacement; otherwise, the quality of the output water will deteriorate. 5) Maintenance work on the equipment is extensive
1) The equipment is complex, increasing the costs associated with its manufacturing. 2) It is difficult to operate. 3) Strict requirements exist regarding its structural design and operating conditions. 4) High standards are required for the water used for replacement; otherwise, the quality of the output water will deteriorate. 5) Maintenance of the equipment requires a lot of effort
1. Complex equipment 2. Many steps in the regeneration process 3. Low operating flow rate 4. Strict operating conditions 5. High requirements for the quality of the replacement water
Disadvantages of counter-current regeneration fixed-bed: 1) The equipment is complex, increasing the manufacturing costs； 2) Difficult to operate ； 3) Strict requirements for structural design and operating conditions ； 4) High requirements are placed on the water used for displacement; otherwise, it will degrade the quality of the effluent water ； 5) The amount of work required for equipment maintenance is large ；
The advantages of counter-current regeneration fixed beds are: 1) Lower consumption of regenerant, saving more regenerant compared to the co-current regeneration process； 2) Improved effluent quality ； 3) High periodic water production volume ； 4) Water conservation ； 5) The concentration of the waste regeneration liquid resulting from searches is reduced, the amount of waste liquid decreases, and pollution of natural water is minimized ； 6) Increased working switching capacity. The working exchange capacity of the resin depends on its degree of regeneration and degradation; therefore, under the same regeneration conditions, its working exchange capacity is higher than that of a countercurrent bed. Fixed-bed regeneration in countercurrent mode also has its disadvantages: 1) The equipment is complex, which increases the cost of manufacturing it ； 2) Difficult to operate ； 3) Strict requirements for structural design and operating conditions ； 4) High requirements are placed on the water used for displacement; otherwise, it will degrade the quality of the effluent water ； 5) The amount of work required for equipment maintenance is large ；
What are the disadvantages of counter-current regenerative fixed-bed reactors? Disadvantages of counter-current regeneration fixed beds: (1) The equipment is complex, increasing the manufacturing costs. (2) It’s troublesome to operate. (3) Strict requirements are imposed on structural design and operating conditions. (4) High requirements are placed on the water used for displacement; otherwise, the quality of the effluent will deteriorate. (5) The workload for equipment maintenance is heavy.
1) The equipment is complex, increasing the manufacturing costs； 2) Difficult to operate ； 3) Strict requirements for structural design and operating conditions ； 4) High requirements are placed on the water used for displacement; otherwise, it will degrade the quality of the effluent water ； 5) The equipment maintenance workload is heavy.
Disadvantages of counter-current regeneration fixed-bed: 1) The equipment is complex, increasing the manufacturing costs； 2) Difficult to operate ； 3) Strict requirements for structural design and operating conditions ； 4) High requirements are placed on the water used for displacement; otherwise, it will degrade the quality of the effluent water ； 5) The amount of work required for equipment maintenance is large
What are the disadvantages of counter-current regenerative fixed-bed reactors? Disadvantages of counter-current regeneration fixed beds: (1) The equipment is complex, increasing the manufacturing costs. (2) It’s troublesome to operate. (3) Strict requirements are imposed on structural design and operating conditions. (4) High requirements are placed on the water used for displacement; otherwise, the quality of the effluent will deteriorate. (5) The workload for equipment maintenance is heavy.