Gas Purification Summary Post (III) – Shift Reaction
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1. Regarding the feasibility of adding a ceramic filter in front of the conversion furnace? 2. Those who are familiar with transformations, please come in. 3. What is an appropriate level of ammonia content in the transformed gas? 4. Points to note when changing the gas guide! ! 5. How to handle excessive temperature rise in the shift converter during operation of the conversion system? 6. Under what conditions is water ingress likely to occur in the shift converter? 7. Emergency response plan after converter shutdown 8. Converter calculation issues 9. What is the steam-to-gas ratio for Co-Mo-based sulfur-resistant wide-temperature converters? 10. What is the steam-to-gas ratio for the medium-temperature converters in your plant? 11. The issue of CO content in the process gas after conversion 12. Why is the CO conversion process different in the ammonia synthesis process and in methanol synthesis? 13. How to deal with severe carbon deposition in the shift reactor. 14. Steam consumption in the ammonia synthesis shift unit. 15. CO shift reactor. 16. Operational experience in heating the shift reactor. 17. CO shift reactor B in gas purification. 18. How to passivate and protect the 113 shift catalyst. 19. Issues related to temperature differences in the shift process. 20. Questions regarding the selection of shift catalyst models – issues related to shift units. 21. Regarding the material used for shift water coolers. 22. Seeking information on medium-temperature CO conversion using natural gas as a feedstock. 23. Calculation of the amount of nitrogen gas required for heating in the shift reactor. 24. Formulas for calculating the reaction constants in water-gas shift reactions. 25. Issues related to crystallization and corrosion at the outlet of the low-pressure condensate stripping tower in the shift process. 26. Issues related to the heat effect in the shift process. 27. Radial shift reactors. 28. Reasons for overheating in shift reactors. 29. Steam consumption in CO shift reactions. 30. Request for a process flow diagram of the shift process. 31. Internal structure diagram of the shift reactor. 32. How to control the sulfidation of shift catalysts? 33. Heating up the shift converter 34. What are the advantages and disadvantages of the medium-low-low and full-low-low processes in shift conversion? 35. Principle of the shift unit 36. Advantages and disadvantages of using axial radial shift furnaces 37. Advantages and disadvantages of using axial radial shift furnaces 38. Issues related to ammonia washing after shifting? 39. Issues related to shift heat recovery 40. Selection of the steam pressure level generated by the shift waste boiler 41. Increasing the number of pre-shift reactors improves the conversion rate 42. Problems concerning the CO conversion rate 43. What are the reasons for an increase in the CO content in the shift gas? How to address it? 44. The purpose of installing an inlet in the middle of the shift reactor 45. Issues related to the shift process. 46. Issues with transformation conversion rate? 47. CO conversion 48. Pictures of conversion furnaces 49. Methanol residues and conversion condensates 50. Problems in the operation of low-temperature conversion furnaces; please help me
Continue: 51. Issues regarding the offset of syngas in the shift low-pressure steam generator; 52. Control of CO at the shift gas outlet and adjustment of the water-to-gas ratio; 53. Pressure increase in the shift system? How to determine the process parameters for the original methanol shift unit in the ammonia synthesis industry: 54. On gas shift in ammonia synthesis; 55. On shift units; 56. Issues related to shift operations; 57. Gas-to-solid ratio in medium- and low-temperature shift processes; 58. Condensate from high-temperature shift; 59. Problems related to methanol conversion rate; 60. Handling of uneven flow within the shift bed; 61. Solutions for emergency shutdowns in the methanol shift unit system; 62. Carbon deposition during shift reactions! 63. The low water-gas ratio shift process has been successfully applied in the \"space furnace\". 64. Shift reaction and heat recovery in coal chemical industry. 65. Why is it necessary to shift carbon monoxide in coal chemical industry? 66. Could someone tell me which companies in China manufacture the main equipment used in the process of transitioning from the shift reaction stage to the synthetic distillation stage in methanol production plants? Thank you! 67. Discussion on important issues related to the shift reaction process on a daily basis. 68. How is the equilibrium temperature difference determined in a CO shift unit? 69. I need help with issues related to low-temperature shift operations. 70. Can the shift reaction system remove ammonia? 71. Reaction in shaft radial conversion furnaces 72. Successful production of methanol using sulfur-resistant conversion at a low water-to-gas ratio 73. Which expert has predictions and analyses regarding the total market volume for low-temperature methanol washing and CO conversion processes in China from 2009 to 2011? 74. Who has information on conversion units? 75. Discussion on conversion technology 76. I’m puzzled; many people discuss gasification, but why doesn’t anyone talk about conversion? 77. Treatment of impurities in the syngas fed to the low-temperature methanol wash unit. 78. Can the water vapor released from the syngas hot water tank be recovered? 80. Composition of a portion of the syngas. 81. Issues related to catalysts for medium-temperature conversion of CO. 82. Where in the syngas conversion system does ammonium crystallization occur? How can it be avoided? 82. Discuss the shift reaction during the gasification process; what are the measures to take in the gasification unit after an accident caused by a shift failure? 83. Shift section 84. How to control the space velocity of the gas entering the shift reactor 85. Obtain the process flow and equipment list for the shift (full low-temperature shift) process for 50,000 tons of synthetic ammonia production 86. The influence of space velocity on the shift reaction due to water content in the gas from Texaco’s water gas process 87. Control of CO levels at the outlet of the shift gas 88. What are the reasons for excessive CO levels at the outlet of low-temperature shift reactors? 89. Low pH of hot water in the shift unit’s saturated hot water tower. 90. Settings for shift reaction in coal gasification. 91. Alkali washing scheme for shift unit waste boilers. 92. Ammonia crystallization in the shift unit. 93. Methanation in the shift unit. 94. Shift reaction in coal-to-methanol production – PID control for desulfurization of shift gas. 95. Relationship between energy balance and the shift reaction in low-temperature liquid nitrogen washing. 96. Inquiry regarding the function of the coke filter in coal gasification shift processes. 97. What are the factors that cause an increase in carbon monoxide content in shift gas? How to handle 98? Seeking advice on data transformation 99. Changing the activity of catalysts 100. What are your insights on methods for the deep conversion of syngas with high CO content?
Continue: 101. Inquiry about reactors with variable shaft diameters. 102. Questions regarding the ammonia content at the outlet of the shift converter unit. 103. What are the shift and purification processes in the coal-to-methanol process??? Please help; thanks. The drain expansion tank in the shift system. 104. How is the water-vapor ratio calculated in coal gas shift? 105. Issues with the operation and design of carbon monoxide shift reactors 106. Original startup plan for medium-pressure shift reactors 107. Operation of the 6.3 MPa shift process in the Texaco gasification method? Shift unit 108, shift reaction mechanism 109 – how far has the shift reactor come in terms of its capabilities? 110. What is the usage status of the shaft radial transformation furnace? 111. Problems with the semi-water gas shift reaction 112. Does anyone have pictures of water gas shift units? 113. Transformation mechanism – Feel free to add comments to supplement