English — Forum #723 (Page 325/642)

1. 【Daily Topic】【Civil Engineering Version 20160320】 - HCBBS Forum
2. Environmental Protection Daily Tip – March 27: Reward for participation, plus 5 more points for answering 5 questions correctly - HCBBS Forum
3. 【Joint Study*】【Civil Engineering Version 20160328】 - HCBBS Forum
4. Tube side flow velocity issues in shell and tube heat exchangers - HCBBS Forum
5. Analysis of the reasons for leakage in wet gas cabinets? - HCBBS Forum
6. The grounding issue of electric actuators in natural gas stations - HCBBS Forum
7. Have you ever done LNG filling? - HCBBS Forum
8. Could someone with expertise please provide the contact information for Sulsim’s agent in China? - HCBBS Forum
9. 【Daily Topic】【Production Version 20160325】 - HCBBS Forum
10. I’m reaching out again to the experienced colleagues for the operating procedures for filling liquid gas cylinders (with liquefied gas coming directly from the installation) - HCBBS Forum
11. Sign-in record post from March 20, 2016 - HCBBS Forum
12. I would appreciate it if an expert could tell me how to export gas-liquid equilibrium data in Aspen 8.8 - HCBBS Forum
13. safety valve - HCBBS Forum
14. Is it necessary to have an inspection by the Technical Supervision Bureau before shutting down a pressure vessel for relocation? - HCBBS Forum
15. How to configure surge protectors? - HCBBS Forum
16. Standard heat exchanger for Φ38 heat exchange tubes - HCBBS Forum
17. Seeking help regarding the clearance at the inlet and outlet dead centers of a steam reciprocating pump - HCBBS Forum
18. Reason for vacuum evaporation of THF from the reaction materials in the one-step PTMEG heteropolyacid synthesis - HCBBS Forum
19. For a cyclone separator with a lower conical barrel of 3900 in length and a diameter of 2000 at its larger end, what type of support is suitable? - HCBBS Forum
20. Reasons for the burnout of the pump seal - HCBBS Forum
21. Future development direction of China’s natural gas market - HCBBS Forum
22. Request for detailed implementation rules for process supervision - HCBBS Forum
23. Reasons for water accumulation in naphtha pipelines and frosting in fuel gas pipelines - HCBBS Forum
24. Are there any teachers in the forum who are familiar with CNAS, or those who have completed certification themselves? - HCBBS Forum
25. AB touchscreen data refresh issue - HCBBS Forum
26. Gas boiler efficiency - HCBBS Forum
27. What does opacity at the stack mean? - HCBBS Forum
28. Can PLC programs from the same series be used interchangeably? ? - HCBBS Forum
29. Code for Process Design of Copper Smelting Plants GB50616-2010 - HCBBS Forum
30. Is there any DN150 butterfly valve installed in the wrong direction? - HCBBS Forum
31. Annual inspection of 3000-liter liquefied gas spherical tank - HCBBS Forum
32. Steam consumption - HCBBS Forum
33. The impact of changes in the ratio of straight-run naphtha to hydrogenated naphtha in the reformation feedstock on the product - HCBBS Forum
34. Sulfur Daily Question, March 18------Participate in 8 Wealth - HCBBS Forum
35. In the conversion system, is the steam added in excess relative to the feed gas? - HCBBS Forum
36. Seek the instruction manual for KCD2-SR-Ex1.LB safety barrier - HCBBS Forum
37. Problems with the steam generation system - HCBBS Forum
38. Superheated steam heat exchanger - HCBBS Forum
39. What do XCS, XOS, XZOS, XZCS, XZMS, XHI, XS, HK, and HS represent respectively? - HCBBS Forum
40. I’m seeking help from everyone – what are the causes of ethylene glycol foaming? How exactly is it foamed? - HCBBS Forum
41. Issues with on-site inventory counting at PVC pipe companies - HCBBS Forum
42. Long-distance liquid sulfur pipeline - HCBBS Forum
43. Etherification catalyst - HCBBS Forum
44. Help, please! Help! ! - HCBBS Forum
45. 【Daily Question No. 144】March 29, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
46. The ambient temperature can drop to as low as -20 degrees Celsius; can A106B be used? - HCBBS Forum
47. 【Daily Topic】【Electrical Edition 20160318】 - HCBBS Forum
48. Discussion on the standard procedures for putting the catalytic slurry steam generator into operation! - HCBBS Forum
49. Is the emergency plan for work safety a system or a regulation? - HCBBS Forum
50. Domestically produced, fully waterproof digital pressure gauge with no zero drift for long-distance transmission; the pig took a few photos of them for a beauty contest yesterday - HCBBS Forum
51. Water treatment market trends - HCBBS Forum
52. Process renovation for organic fertilizers - HCBBS Forum
53. Environmental impact assessments for two projects, including CNOOC’s coal-to-gas project in Shanxi, have been approved - HCBBS Forum
54. Seek the Chinese version of EN 13445-2002 - HCBBS Forum
55. How often should an acidic water stripping tower be overhauled? - HCBBS Forum
56. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 474 - HCBBS Forum
57. Tube sheets are widely used in industries such as petrochemical boilers and refrigeration steam turbines - HCBBS Forum
58. Seeking advice on boiler chemical dosing issues - HCBBS Forum
59. Micro flow meter recommendations, urgently needed! - HCBBS Forum
60. Which gear pump is the best? - HCBBS Forum
61. Sign-in record post from March 19, 2016 - HCBBS Forum
62. The performance does not meet the standards, but the owner agrees to use it – can it still be accepted? - HCBBS Forum
63. Ordinary sulfur contains about 30% organic impurities; what is a convenient and feasible way to purify sulfur? - HCBBS Forum
64. Hydrocracking feedstock - HCBBS Forum
65. Transportation issues of down and fiber materials - HCBBS Forum
66. PID control - HCBBS Forum
67. Problems in calculating the energy consumption for ammonia synthesis - HCBBS Forum
68. 【Daily Question】Chemical Engineering Principles 349: Caustic Embrittlement (March 28) - HCBBS Forum
69. Urgently seeking a tutorial on importing PROII9.2 into HTRI5.0 - HCBBS Forum
70. 【Daily Question No. 142】March 25, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
71. Comparison of the Advantages of Sulfur-based Acid Production and Pyrite-based Acid Production - HCBBS Forum
72. The function of instrument air in the tower bottom section - HCBBS Forum
73. How to handle the tank openings at the front and rear when loading gasoline - HCBBS Forum
74. How are the volume and diameter of the quench chamber in a gasification furnace calculated? - HCBBS Forum
75. In seawater, which is more durable, 317L or 316LN? - HCBBS Forum
76. 【Weekly Topic】【HVAC Edition 20160307】 - HCBBS Forum
77. The issue of collecting acidic wastewater - HCBBS Forum
78. 【Joint Study*】【Electrical Version 20160313】 - HCBBS Forum
79. Technical solutions to address the issues of corrosion and wear resistance in pumps used for desulfurization - HCBBS Forum
80. Axial flow fan - HCBBS Forum
81. Dangers of too rapid pressure increase in the hydrogen production desulfurization reactor alone - HCBBS Forum
82. The time in Shanghai Chuan has changed - HCBBS Forum
83. What are your thoughts on working out like this? - HCBBS Forum
84. I would like to ask: for pressurizing nitrogen valves, with a normal operating pressure of 6.5 MPA, what pressure is suitable for pressurization? - HCBBS Forum
85. Everyone, please help – how do I calculate this? ? ? - HCBBS Forum
86. Equipment selection for the transportation of toluene vapor - HCBBS Forum
87. Are there any new natural gas chemical plants under construction in Qian’an, Tangshan, Hebei recently? - HCBBS Forum
88. Where is the drawing tool in Aspen8.4? - HCBBS Forum
89. The latest version of Pipe data, 11.0, is finally available - HCBBS Forum
90. 【Daily Topic】【Civil Engineering Version 20160312】 - HCBBS Forum
91. 【Daily Question No. 134】March 15, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
92. Who has a manufacturer’s catalog for electric boilers used for heating? Domestic well-known brands are preferred, with capacities ranging from 0.7MW to 2.8MW - HCBBS Forum
93. Selection of the insertion depth for plug-in flange level transmitters - HCBBS Forum
94. How to recover indium from high-arsenic, lead-containing indium ash - HCBBS Forum
95. Isothermal shift technology for the first use in synthetic ammonia HT-L gas - HCBBS Forum
96. Sparks are appearing at the mechanical seal of the solvent pump - HCBBS Forum
97. Seeking advice on whether the welding procedure qualification covers this issue - HCBBS Forum
98. With oil prices plummeting, does coal-based hydrogen production in refineries still have a cost advantage? - HCBBS Forum
99. What companies in Xi’an are suitable for the field of chemical instrumentation? - HCBBS Forum
100. The octagonal gasket is stuck in the flange sealing groove; how can it be removed intact? - HCBBS Forum