English — Forum #13 (Page 11/75)

1. 11. What is the function of the check valve at the main fan outlet? - HCBBS Forum
2. High microwater content of propylene in the gas separation unit - HCBBS Forum
3. Chlorine content in vacuum distillation crude oil after desalination - HCBBS Forum
4. I have questions regarding the initial startup of the hydrogenation unit; could I ask the experienced workers for advice? ! - HCBBS Forum
5. DCS system engineering outsourcing - HCBBS Forum
6. How much of the vapor from the diesel side stream stripper’s top is returned to the main distillation column? - HCBBS Forum
7. Installation method of basket filters - HCBBS Forum
8. What word is PTU actually an abbreviation for? - HCBBS Forum
9. Corrosion condition of the reforming and regeneration dryer - HCBBS Forum
10. The oil rejection problem in distillation columns - HCBBS Forum
11. 【Daily Question No. 18】January 18, 2021 - HCBBS Forum
12. Coal pyrolysis data - HCBBS Forum
13. Corrosion issue in the outlet pipeline of the compressor in the catalytic unit - HCBBS Forum
14. Comprehensive Petrochemical Database 23.9 [Advanced Processing of Oil and Gas] List (no attachments) - HCBBS Forum
15. 10 Reasons for excessive noise from range hoods: - HCBBS Forum
16. The flow velocity of fluid in the pipeline - HCBBS Forum
17. 24. If the steam supply to the unit is interrupted or the pressure drops, what may happen to the main fan and what are the corrective measures? - HCBBS Forum
18. Corrosion of the wall in flue gas desulfurization towers - HCBBS Forum
19. What are the carbon-reduction measures for catalytic cracking units? - HCBBS Forum
20. Reflux is used at the top of the catalytic fractionation tower - HCBBS Forum
21. Zhenhai Refining & Chemical has completed the production and shipment of the first batch of specialized energy-storage petroleum coke - HCBBS Forum
22. Typical phenomena of salt deposition on distillation column trays causing tower blockage during normal production (practical version) - HCBBS Forum
23. Can a purge be performed into a normally operating vacuum tower? - HCBBS Forum
24. 108. What are the reasons for high stator temperature in the main fan motor, and how to address it? - HCBBS Forum
25. Quality of wastewater from catalytic cracking flue gas desulfurization - HCBBS Forum
26. State of the medium inside the tower - HCBBS Forum
27. The impact of molybdenum metal contamination on catalytic cracking units - HCBBS Forum
28. High-pressure oil-reaction effluent heat exchanger - HCBBS Forum
29. Top temperature control of coking fractionation tower - HCBBS Forum
30. The masters, come and take a look - HCBBS Forum
31. 【Daily Question No. 33】February 2, 2021 - HCBBS Forum
32. 91. How should the valves in the system be handled before starting the lubricating oil pump? - HCBBS Forum
33. What are the requirements for catalysts when catalytically refining heavy oil? - HCBBS Forum
34. What is the mass yield at 520°C for slag reduction? - HCBBS Forum
35. 16. When should the water seal at the exhaust of the smoke extractor be removed? - HCBBS Forum
36. Regarding hydraulic energy recovery turbines - HCBBS Forum
37. How to burn off hydrogen when catalytic cracking leads to repeated coking - HCBBS Forum
38. Industry experts in needle-shaped coke technology - HCBBS Forum
39. What materials are used for solvent (amine solution) regeneration reboilers these days? - HCBBS Forum
40. Uses of environmentally friendly aromatic oil - HCBBS Forum
41. Regarding whether steam can be used to mask or handle liquefied gas leaks - HCBBS Forum
42. Eight operational standard specifications for the plant area - HCBBS Forum
43. Seek production equipment for sodium-based desulfurization (sodium pyrosulfite) - HCBBS Forum
44. LPG copper corrosion test failed - HCBBS Forum
45. 54. Please briefly describe the consequences of scaling in heat exchange equipment. - HCBBS Forum
46. Production methods of needle coke - HCBBS Forum
47. Gasoline desulfurization process - HCBBS Forum
48. 26. How to handle the unit after the main fan interlock occurs? - HCBBS Forum
49. The construction project for the basic organic catalyst production base of Sinopec Catalysts (Shanghai) Co., Ltd. was officially launched in the Shanghai Chemical Industry Park - HCBBS Forum
50. 【Daily Question No. 36】February 5, 2021 - HCBBS Forum
51. 【Daily Question No. 63】March 4, 2021 - HCBBS Forum
52. What is the cost of treating COD in the water obtained through electrodesalination? - HCBBS Forum
53. Several issues regarding the liquid level of the heat extraction drum outside the catalytic unit - HCBBS Forum
54. Shanxi Gear Turbines - HCBBS Forum
55. 1 - HCBBS Forum
56. Request the technical specifications for various heavy oil catalytic cracking sludges (FCC sludges) - HCBBS Forum
57. 71. What are the reasons for high inlet temperature in the flue gas system? - HCBBS Forum
58. Relationship between distillation tower outlet temperature and distillate volume - HCBBS Forum
59. Catalyst and hydrogen sulfide - HCBBS Forum
60. Brazil increases the proportion of biofuels in gasoline - HCBBS Forum
61. Recycling chemical raw materials - HCBBS Forum
62. Sinopec receives patent authorization for: “Method and device for crude oil processing control”” - HCBBS Forum
63. Why is there a cycle in device processing? - HCBBS Forum
64. 102. Why is cooling water needed for the chimney frame? - HCBBS Forum
65. Olefin content in unreacted MTBE tetrahydrocarbon fraction - HCBBS Forum
66. Large-scale catalytic cracking operation - HCBBS Forum
67. Fractionation system: How should the diesel boiling range be controlled? - HCBBS Forum
68. Analysis of catalytic raw materials - HCBBS Forum
69. Refining methods for straight-run products from atmospheric and vacuum distillation units and key points for on-site operation - HCBBS Forum
70. 36. What are the causes of simultaneous or separate drops in oil level and oil pressure at the air pressure oil station, and what are the corrective measures? - HCBBS Forum
71. Handling of faults in the raw oil riser of a coaxial catalytic cracking unit - HCBBS Forum
72. [Special Equipment Safety Management and Standardization]--How to check the next inspection date of pressure pipelines? - HCBBS Forum
73. The pressure drop in the distillation tower is 0.02 Mpa; come and take a look - HCBBS Forum
74. Regular reduced crown cutting water: colorless, white, black, emulsive – what does each of these indicate? - HCBBS Forum
75. 48. Why is it necessary to warm up the turbine at low speed? - HCBBS Forum
76. Is steam pressure testing required when the unit is put into operation? - HCBBS Forum
77. 【Daily Question No. 37】February 6, 2021 - HCBBS Forum
78. How to reduce the dry gas yield in coking units - HCBBS Forum
79. The coke tower preheats slowly, and the preheating temperature does not reach the required level - HCBBS Forum
80. Reformation Dust - HCBBS Forum
81. Who is familiar with sludge treatment techniques? - HCBBS Forum
82. Does the waste heat from the regenerated flue gas from the catalytic cracking unit to the post-processing exhaust still have value? - HCBBS Forum
83. New technologies for primary distillate gasoline - HCBBS Forum
84. Sinopec has been granted an invention patent for “A processing method and processing system for the fluidized cracking of waste plastics” - HCBBS Forum
85. Yanshan Petrochemical: Building a industry-leading clean aviation fuel production base in the context of the \"dual carbon\" goals - HCBBS Forum
86. Commissioning of the catalytic cracking unit - HCBBS Forum
87. Low-temperature methanol washing - HCBBS Forum
88. Specific power---Energy efficiency rating--Energy efficiency label - HCBBS Forum
89. The catalytic liquefied gas has a high content of sulfides - HCBBS Forum
90. The coking unit at Shijiazhuang Refining & Chemical has been operating steadily for 17 months in a row, setting a new record for the longest continuous operation period of this unit - HCBBS Forum
91. Biodiesel - HCBBS Forum
92. 【Daily Question No. 14】January 14, 2021 - HCBBS Forum
93. Key Points for Steady Operation of Distillation Columns (Practical Guide for Operators) - HCBBS Forum
94. 35. What is the effect of changes in the inlet temperature of the compressor on the compressor? - HCBBS Forum
95. 【Daily Question No. 22】January 22, 2021 - HCBBS Forum
96. 【Daily Question No. 17】January 17, 2021 - HCBBS Forum
97. Sampling of particle concentration in flue gas at the inlet of the precipitator - HCBBS Forum
98. Henan Refining & Chemical’s first batch of petroleum coke for pre-baked anodes has been shipped - HCBBS Forum
99. What methods and measures can be used to address the issue of coke powder carryover in the cold coking water system of delayed coking units? - HCBBS Forum
100. Safety in the production and storage of oxidized asphalt - HCBBS Forum