English — Forum #723 (Page 279/642)

1. How to address the selectivity issue in cascade reactions - HCBBS Forum
2. Help: Is there any software that can give the products after entering the reactants? - HCBBS Forum
3. What does the steel stamp marking on a cylinder filled with a mixed gas look like? - HCBBS Forum
4. 20160503 One question per day - HCBBS Forum
5. How to effectively eliminate foam during the production of fine chemical reaction kettles? - HCBBS Forum
6. Transfer the points from the old bank here - HCBBS Forum
7. Wall thickness issue - HCBBS Forum
8. Environmental Protection Daily Post – April 29: Reward for participation; an additional 3 rewards for answering 3 questions correctly - HCBBS Forum
9. Environmental Protection Daily Post 5.05: Reward for participation is 3 points, plus another 3 points for answering correctly - HCBBS Forum
10. 【Daily Topic】【Electrical Edition 20160423】 - HCBBS Forum
11. Does anyone know how to correctly determine the contents of each component in a mixture containing NaOH, Na2CO3, and Na3PO4? - HCBBS Forum
12. 【Daily Topic】【Civil Engineering Version 20160505】 - HCBBS Forum
13. “Taste of HaiChuan – The Power of HaiChuan Food Lovers” has begun; the upgraded moderator is spreading wealth - HCBBS Forum
14. 【Picture of the Day】2016 05 05 What is the device in this picture? - HCBBS Forum
15. Looking for manufacturers of flexible graphite packing - HCBBS Forum
16. How to improve the overall yield of an exothermic reaction with a one-way yield of over 40% - HCBBS Forum
17. Sign-in record post dated April 25, 2016 - HCBBS Forum
18. Steam consumption for indirect sludge drying - HCBBS Forum
19. 【Basic Knowledge of Occupational Health】: High-Risk Groups - HCBBS Forum
20. I went to a KTV to sing today, and then... I don’t even dare to say it - HCBBS Forum
21. Gas-gas heat exchange – shell and tube heat exchanger with fixed tube sheet; the outlet temperature on the tube side is on the high side - HCBBS Forum
22. High-efficiency sealing design for the floating disk in storage tanks - HCBBS Forum
23. AB 753 Inverter Fault 922 - HCBBS Forum
24. Why is the COD5 ratio in the effluent higher than that in the influent after treating organic wastewater using the O3 oxidation method? - HCBBS Forum
25. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 505 - HCBBS Forum
26. Questions regarding the hydrostatic test pressure in GB/T16508-2013? - HCBBS Forum
27. Daily Question, May 1, 2016: A liquid begins to boil when its vapor pressure equals the external pressure; the temperature at this point is called - HCBBS Forum
28. Unloading of flammable and explosive chemical products such as gasoline, diesel, and methanol - HCBBS Forum
29. Discussion on the use of EJA Yokogawa differential pressure level gauges - HCBBS Forum
30. You’re tired from walking; smile - HCBBS Forum
31. Which is easier to work in, a property manager or a hotel front desk manager? - HCBBS Forum
32. For projects adopting the EMC model, who is responsible for soliciting supervision services? - HCBBS Forum
33. Discussion on Salinity in Biological Wastewater Treatment - HCBBS Forum
34. Specialized division of labor - HCBBS Forum
35. What level of heat loss in warm water pipes is considered acceptable? - HCBBS Forum
36. Regarding the issue of liquid in the vacuum pump. - HCBBS Forum
37. Vortex flow meter - HCBBS Forum
38. Heating of iron-molybdenum catalyst - HCBBS Forum
39. “Haichuan Irrigation Co., Ltd. Convenience Store” – 325: Go on a trip on a whim - HCBBS Forum
40. 【Q&A Question 007】April 27, 2016 - HCBBS Forum
41. 【Weekly Topic】【Storage & Transportation Version 20160422】 - HCBBS Forum
42. 【Q&A Question 013】2016.05.03 - HCBBS Forum
43. Sulfur Daily Question, May 5th------3 points for participation, 10 points for a correct answer - HCBBS Forum
44. Linear expansion coefficient of material - HCBBS Forum
45. Expansion bonded copper-aluminum finned tube - HCBBS Forum
46. Petroleum design institute, Class A and B qualifications, 6 years of experience, electrical engineering background; part-time jobs or freelance projects are both acceptable - HCBBS Forum
47. Seeking the seal of a design institute for registration in the Professional Examination for Chemical Engineers - HCBBS Forum
48. I’m asking everyone for help: what books should I read to learn *pressure vessel design? - HCBBS Forum
49. Collaboration on pipeline stress analysis - HCBBS Forum
50. What is the design basis for the thicker grade of instrument air ducts? - HCBBS Forum
51. Inter-stage pressure and temperature overprocessing for reciprocating compressors - HCBBS Forum
52. Compressor check valve issue - HCBBS Forum
53. Lummus dehydrogenation catalyst - HCBBS Forum
54. Is it necessary to obtain approval to build a pilot-scale plant? - HCBBS Forum
55. Severn control valve flow rate - HCBBS Forum
56. Dear brothers and sisters, I’m seeking help regarding the calculation of vertical containers using SW6-2011 - HCBBS Forum
57. Looking for the book “MTI’s Corrosion Book” - HCBBS Forum
58. Issue of hydrogen sulfide pre-charging amount in the hydrogenation reactor - HCBBS Forum
59. Seek help regarding the production volume per shift, tanks - HCBBS Forum
60. Intergranular corrosion container modification - HCBBS Forum
61. Environmental Protection Daily Tip – April 27: Reward for participation, plus 3 more rewards for answering correctly - HCBBS Forum
62. Explosion protection rating - HCBBS Forum
63. I suddenly realized that the range of 0–2 MPa is an incorrect representation! ,.. Welcome to discuss. . . - HCBBS Forum
64. Calculation of thermal efficiency for circulating fluidized bed boilers - HCBBS Forum
65. I hope everyone can recommend some practical information on device interfaces! I sincerely thank you! - HCBBS Forum
66. I need the safety data sheet for carbon disulfide, thank you. - HCBBS Forum
67. The Southwest Institute of Physics under the nuclear industry conducts direct recruitment interviews, yet it employs workers through labor dispatch agencies - HCBBS Forum
68. 【Weekly Topic】【Storage & Transportation Version 20160503】 - HCBBS Forum
69. Looking for recommendations on books on petrochemicals - HCBBS Forum
70. 【Daily Topic】【Civil Engineering Version 20160422】 - HCBBS Forum
71. Is the installation of the weighing system, including sensors and controllers, the responsibility of the manufacturer or the construction party? - HCBBS Forum
72. 【Daily Question】 2016 05 04 Hydrogenation Sector Multiple-choice Question - HCBBS Forum
73. How to measure the gap between the crosshead slider and the slideway? - HCBBS Forum
74. Notice on the 25th National Technical Exchange Conference for Urea Plants - HCBBS Forum
75. Penalties for altering fire protection designs - HCBBS Forum
76. How to handle the discharge valve of the high-pressure scrubber when increasing the CO2 pressure in the CO2 stripping process for urea production - HCBBS Forum
77. My May Day! - HCBBS Forum
78. Regarding the issue of taking X-rays after welding plant valves - HCBBS Forum
79. Centrifugal compressor - HCBBS Forum
80. 【Daily Topic】【Civil Engineering Version 20160425】 - HCBBS Forum
81. In this vast world, food lovers and those involved in the food business are making a comeback - HCBBS Forum
82. Delayed calibration of safety valve - HCBBS Forum
83. Sulfur Daily Question, April 24------3 points for participation, 10 points for a correct answer - HCBBS Forum
84. Is water injection at the top of the atmospheric pressure tower required to be continuous? - HCBBS Forum
85. Oven drying and system drying - HCBBS Forum
86. Heat exchanger issues - HCBBS Forum
87. Process discipline - HCBBS Forum
88. Laptops: Which component fails first - HCBBS Forum
89. Analysis of the influence of the upper dry plate in the vacuum tower on the vacuum level - HCBBS Forum
90. 15- Solutions for blockages in the scrubber and demister of the heavy oil catalytic regeneration flue gas desulfurization tower, as well as for the issue of water droplets falling around the chimney - HCBBS Forum
91. Nitric oxide compressor leakage issue - HCBBS Forum
92. Will there be an exam for registered trade union organizations this year? - HCBBS Forum
93. In Aspen and HYSYS, the top condenser in distillation column simulations is categorized into full reflux, partial reflux, and full condensation – I would like some guidance on this - HCBBS Forum
94. Technical assistance: Questions regarding power operation - HCBBS Forum
95. Regarding the pressure issue of the flushing oil - HCBBS Forum
96. What is the reason for the high fine powder content of system balancers in the catalytic cracking FDFCC process? - HCBBS Forum
97. Selection of extraction solvents for treating organic wastewater using centrifugal extractors - HCBBS Forum
98. Xinjiang Zhongke Linghang Energy Technology Co., Ltd. + Structural and plumbing engineers + Electrical/automation engineers - HCBBS Forum
99. 【Weekly Topic】【Engineering Version 20160425】 - HCBBS Forum
100. Reviewing the Old to Discover the New (Series 20) - HCBBS Forum