English — Forum #723 (Page 169/642)

1. Failed the certification exam for special operations - HCBBS Forum
2. Acid cleaning and passivation of refrigerant pipes - HCBBS Forum
3. Request a solvent regeneration startup plan - HCBBS Forum
4. Smoking poses a severe threat to cerebral blood vessels; after reading this, do you still want to smoke? - HCBBS Forum
5. Differences between 2520 stainless steel and 321 stainless steel - HCBBS Forum
6. Wavelength selection for the determination of iron ions in water - HCBBS Forum
7. The purity issue of pre-hydrogenated recycle hydrogen? - HCBBS Forum
8. Completed - HCBBS Forum
9. How to identify coke? - HCBBS Forum
10. Pneumatic drive issues - HCBBS Forum
11. Urea price trends across China as of 2016.8.24 - HCBBS Forum
12. Regarding the classification of water storage tanks - HCBBS Forum
13. Buried pipelines inside the tank farm - HCBBS Forum
14. The tower and the reboiler at its base are vertical; the equipment flanges are connected directly to each other without any pipes. Is this a good approach? - HCBBS Forum
15. Energy-saving renovation of fans - HCBBS Forum
16. Is it necessary to install an online sulfur analyzer for the low-temperature methanol washing exhaust pipeline? - HCBBS Forum
17. Urea price trends across China as of 2016.8.23 - HCBBS Forum
18. Why can’t a wooden hammer be used to purge non-ferrous metal pipes? - HCBBS Forum
19. A cold winter is coming for the manufacturing industry – how can compensator manufacturers survive it? - HCBBS Forum
20. Static equipment management is simple yet complex - HCBBS Forum
21. What to do when calculating the pressure drop in a packed tower, the values exceed the range of the Ektar correlation diagram? - HCBBS Forum
22. Regarding the issue of testing pressure in the container first and then testing at 1.1 times the design pressure on-site for flaw detection - HCBBS Forum
23. 【Daily Topic】【Engineering Version 20160816】 - HCBBS Forum
24. Environmental Protection Daily Post – August 18: Reward for participation; an additional 5 rewards for answering 3 questions correctly - HCBBS Forum
25. Itaigang Spring Fort coal-to-oil project passes the energy-saving test” - HCBBS Forum
26. Regarding the issue of adding manual valves and blind flanges to the pipeline leading to the flare separator tank - HCBBS Forum
27. 【Daily Topic】【Production Version 20160819】 - HCBBS Forum
28. 【Daily Topic】【Civil Engineering Version 20160818】 - HCBBS Forum
29. Let’s explore solenoid valves - HCBBS Forum
30. Completed - HCBBS Forum
31. Shi Yajun, Gas Desulfurization - HCBBS Forum
32. Are food additives widely used and highly effective? What is your understanding of food additives and their use? - HCBBS Forum
33. Characteristics and installation requirements of K-type thermocouples - HCBBS Forum
34. Discussion on the purification of waste sulfur - HCBBS Forum
35. Which colleague has the book on the skill assessment for operators of wax oil and residue hydrogenation units in PDF format? - HCBBS Forum
36. Differences between stainless steel welding electrodes A102 and A107. - HCBBS Forum
37. Coal transfer and ash removal engineer - HCBBS Forum
38. Pipeline number description - HCBBS Forum
39. Looking for the answers to the Professional Knowledge exam in the afternoon for 2011 - HCBBS Forum
40. How to calculate the cost components of pressure vessels - HCBBS Forum
41. Gate valve packing leakage - HCBBS Forum
42. How are the waste gases from the sulfur pool sent to the reactor? - HCBBS Forum
43. Selection of the project control system - HCBBS Forum
44. What to do about local stress in the tank wall - HCBBS Forum
45. What software is used to simulate the material balance in electrolytic aluminum production? ? - HCBBS Forum
46. How to choose the right centrifuge? - HCBBS Forum
47. Sign-in record post from August 22, 2016 - HCBBS Forum
48. Is HG/T20559 still in use? - HCBBS Forum
49. Where does the requirement that bridge crane operators wear insulating shoes come from? - HCBBS Forum
50. Weekly Urea Market Report for the Third Week of August 2016 - HCBBS Forum
51. Solution analysis for question 26 on the afternoon of the first day of the 2014 Chemistry Engineering professional examination - HCBBS Forum
52. I need help: what is the temperature unit for e? - HCBBS Forum
53. How to use existing coking information to calculate the amount of waste gas generated? - HCBBS Forum
54. Software for simulation calculations of tower design - HCBBS Forum
55. Calculate the amount of gas required - HCBBS Forum
56. 【Daily Question】Principles of Chemical Engineering 411: Resins (August 22) - HCBBS Forum
57. Those new to it - HCBBS Forum
58. If you want to use solar power to control the opening and closing of solenoid valves, how do you determine the size of the photovoltaic panels and the capacity of the batteries? - HCBBS Forum
59. August 11, 2016: Daily Review of Liquid Ammonia - HCBBS Forum
60. The ethanol production project via acetic (ester) hydrogenation at Henan Shunda has been successfully put into operation - HCBBS Forum
61. Sulfur recovery, granulation, and packaging - HCBBS Forum
62. Questions about diaphragm compressors - HCBBS Forum
63. What is the main component of sulfur in the sulfur-containing wastewater from hydrogenation units? - HCBBS Forum
64. How is the viscosity of high-viscosity silicone oil measured? - HCBBS Forum
65. Regarding analytical instruments - HCBBS Forum
66. Differences in the overall heat transfer coefficient - HCBBS Forum
67. Could some teacher please give some advice on ways to cool down methanol tanks in summer? - HCBBS Forum
68. Are there specific specifications for the demineralized water used in centrifugal compressor motors and heat exchangers? - HCBBS Forum
69. Liquid compound fertilizer (suspension type) - HCBBS Forum
70. 10 common mistakes made by safety officers – do you make any of them? - HCBBS Forum
71. Orbit orbital ball valve stem hardness - HCBBS Forum
72. 【Weekly Topic】【Quality Version 20160818】 - HCBBS Forum
73. Some issues arose during the pipeline purging at the start of operations; I hope to get some answers - HCBBS Forum
74. Material of safety valve discharge pipe - HCBBS Forum
75. Power plant deaerator - HCBBS Forum
76. Equipment debugging issues - HCBBS Forum
77. 【Daily Question】 2016 08 14 Hydrogenation Sector Multiple-choice Question - HCBBS Forum
78. 【Listing】Fujian Shengxin New Energy Co., Ltd. is seeking talented individuals - HCBBS Forum
79. Power supply issues with 3-phase 4-wire incoming distribution cabinets - HCBBS Forum
80. Seek detailed operational guidelines for creating a database of PDMS bolts - HCBBS Forum
81. “The Women’s Volleyball Team’s Comeback” Demonstrates the Charm of Spirit - HCBBS Forum
82. Desulfurization and dust removal for 2-ton boilers - HCBBS Forum
83. Afternoon of the first day of the professional exams in 2014 - HCBBS Forum
84. What is the relationship between the preparation capacity and the volume of the solution tank in a PAM integrated dosing unit? - HCBBS Forum
85. Recruitment Notice 2016 for Suzhou Wujiang Everbright Environmental Protection Energy Co., Ltd - HCBBS Forum
86. Regarding the service life of pipelines - HCBBS Forum
87. Design temperature of pressure vessel rupture discs - HCBBS Forum
88. 【Daily Question】Chemical Engineering Principles 404: Resin Leakage (August 10) - HCBBS Forum
89. Lanshi Group and Jinchang Chemical signed a gasification technology demonstration project - HCBBS Forum
90. Questions regarding precision-drawn seamless steel pipes and cold-drawn seamless steel pipes - HCBBS Forum
91. What is the purpose of installing this valve on the common pipeline? - HCBBS Forum
92. No one can beat them - HCBBS Forum
93. Have you encountered any difficulties in wastewater treatment, and how did you solve them? - HCBBS Forum
94. Technologies related to expanders for exhaust gas recovery - HCBBS Forum
95. Question 28, Morning Session of Professional Knowledge, 2013 - HCBBS Forum
96. 4. The quality of steam depends on those parameters present in the steam - HCBBS Forum
97. Question: Why does Table 5-1 in NB/T47003.1 list two allowable stresses for stainless steel materials at 100°C? - HCBBS Forum
98. Hazardous Waste Control Plan for Major Overhaul - HCBBS Forum
99. Selection of diaphragm material for pressure transmitters - HCBBS Forum
100. 【Daily Question】Chemical Engineering Principles 407: Electrolysis of water to produce hydrogen (August 16) - HCBBS Forum