English — Forum #723 (Page 304/642)

1. Feedforward controller problem - HCBBS Forum
2. Does the ratio of the gas volumetric flow rate after the pressure relief valve to that before the valve roughly conform to pV=nRT? - HCBBS Forum
3. I’m asking experts if they have any exam questions on the separation of liquefied carbon dioxide and methane - HCBBS Forum
4. Could an expert help calculate this? With an annual transportation volume of 300,000 tons, is it necessary to use a centrifugal compressor? - HCBBS Forum
5. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 484 - HCBBS Forum
6. Cooling water calculation - HCBBS Forum
7. How should pretreatment be carried out for stone wastewater containing hexavalent chromium? - HCBBS Forum
8. Why does the pH rise to around 10 after 1 hour of micro-aeration in a micro-electrolysis pilot test? - HCBBS Forum
9. 【Joint Study*】【Electrical Version 20160330】 - HCBBS Forum
10. Oil leakage problem in Milton Roy metering pumps - HCBBS Forum
11. How to calculate the maximum flow rate of steam pipes - HCBBS Forum
12. Impact energy - HCBBS Forum
13. Bag filter dust removal system - HCBBS Forum
14. Purifying biogas into vehicle fuel - HCBBS Forum
15. Oxygen generator with external compression of 40,000 units, equipped with an argon system; it also produces high-purity liquid oxygen (purity of 5 nines). Seeking advice - HCBBS Forum
16. When purging pressure pipelines, what is the distance between the installed blind flanges and the purge port, and are there any relevant specifications? - HCBBS Forum
17. Two questions regarding Honeywell PKS! - HCBBS Forum
18. Zibo Junda Chemical Technology Co., Ltd. is seeking: process and electrical engineering designers - HCBBS Forum
19. Components and models of hydrogen production dechlorination agents - HCBBS Forum
20. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 482 - HCBBS Forum
21. The day before, I tried adding some polypropylene, and the sludge settling ratio suddenly decreased - HCBBS Forum
22. CAD Drawing, learning*, - HCBBS Forum
23. Recruitment: Qinghai CITIC Guoan Technology Development Co., Ltd. + Chemical Analysis - HCBBS Forum
24. How is the external coil (non-half-coil) installed on the tank? - HCBBS Forum
25. How to use ethanolamine to absorb CO2 - HCBBS Forum
26. Discussion on the materials of valve body, valve core, valve seat, and valve stem - HCBBS Forum
27. 【Daily Question】 2016-04-10 Hydrogenation Sector Multiple Choice - HCBBS Forum
28. 【Industry Technical Exchange Section】March 2016 Post on Moderator Salary Payments + Post on Technical Team Salary Payments - HCBBS Forum
29. Is there a significant difference between continuous aqueous phase and continuous organic phase during the extraction with P204 and P507? - HCBBS Forum
30. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 481 - HCBBS Forum
31. 【Basic Knowledge of Occupational Health】Hysteria - HCBBS Forum
32. Dust control in stockyards - HCBBS Forum
33. Use Aspen to separate multiple substances individually - HCBBS Forum
34. Relationship between the diameter of hydrogen and chlorine pipes at the lamp head of the two-in-one synthesis furnace and the temperature of the lamp head - HCBBS Forum
35. Oil-gas separation related English terms - HCBBS Forum
36. MTL safety barrier - HCBBS Forum
37. What are the facilities for protecting against occupational diseases? - HCBBS Forum
38. ] What textbooks should be read on chlor-alkali industry? - HCBBS Forum
39. Do the pipes in my company fall under the category of pressure pipes? - HCBBS Forum
40. I have been promoted to deputy chief editor; please pay attention to the production division - HCBBS Forum
41. Heat exchanger expansion joint selection issues – urgent! Urgent! Urgent! - HCBBS Forum
42. I need a maintenance report for compressor 2BCL - HCBBS Forum
43. On the dust removal from catalytic cracking flue gas - HCBBS Forum
44. Do you want to know how many SeaRiver Coins I have? ? - HCBBS Forum
45. Seek advice and help - HCBBS Forum
46. Regarding hydroconversion - HCBBS Forum
47. Technical route and methods for retrofitting using two-stage air-staged combustion technology - HCBBS Forum
48. GB/T 498-2014 Petroleum products and lubricants – Methods of classification and determination of categories: Why was the ‘coke’ category removed? - HCBBS Forum
49. How to treat CnHm in coke oven gas - HCBBS Forum
50. Issues with the material of the flue gas pipes - HCBBS Forum
51. What is a purifier ring chamber? - HCBBS Forum
52. How to distinguish the beginning and end of a belt conveyor structure - HCBBS Forum
53. A Brief Discussion on Fire Prevention Techniques in Production Processes - HCBBS Forum
54. They really know how to eat, truly! - HCBBS Forum
55. 【Daily Question】20160406 Reciprocating Compressor Valve - HCBBS Forum
56. What is the current grid-connected price for biomass power generation? - HCBBS Forum
57. 【Daily Question】 2016 04 09 Hydrogenation Sector Multiple-choice Question - HCBBS Forum
58. On the relationship between various particle sizes and mass after coke screening - HCBBS Forum
59. 【Weekly Topic】【Engineering Version 20160329】 - HCBBS Forum
60. Case Analysis (22): Are they injured at work? - HCBBS Forum
61. 【Daily Topic】【Quality Version 20160406】 - HCBBS Forum
62. I’m seeking advice from everyone: in a low-temperature methanol washing unit’s methanol-water tower, the water content at the top of the tower often exceeds the allowable level. What should be done? - HCBBS Forum
63. CAESAR II for calculating pipe water hammer problems - HCBBS Forum
64. Plan for replacing the coke oven door frame - HCBBS Forum
65. Confusion on the career path - HCBBS Forum
66. Cultivating oyster mushrooms with biogas slurry - HCBBS Forum
67. The market potential for biogas power generation in our country - HCBBS Forum
68. DCS operation record - HCBBS Forum
69. Names and production capacities of national high-tower compound fertilizer companies - HCBBS Forum
70. Guan Guan is starting a new role and is willing to spend money; please continue to support him as before. - HCBBS Forum
71. Tubing issues should be treated as equipment issues - HCBBS Forum
72. Can the phase sequence of a high-voltage motor be changed? - HCBBS Forum
73. 【Daily Question No. 152】April 11, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
74. How to quantitatively analyze the impact of branch pipe resistance on the total flow rate in pipeline network optimization? - HCBBS Forum
75. The thread number of individual posts is not displayed - HCBBS Forum
76. On the treatment of phosphate wastewater - HCBBS Forum
77. What kind of filter element can remove water? - HCBBS Forum
78. Occupational Health Daily Question 4.2: Participate for a prize; 5 correct answers and another prize will be given - HCBBS Forum
79. Environmental Protection Daily Post – March 30: Reward for participation, plus 5 more points for answering 5 questions correctly - HCBBS Forum
80. Seeking help with issues related to branch pipe bases - HCBBS Forum
81. Corrosion of pump impeller - HCBBS Forum
82. Layout of liquefied hydrocarbon unloading cranes, unloading pumps, and compressors - HCBBS Forum
83. 【Daily Topic】【Civil Engineering Version 20160401】 - HCBBS Forum
84. May I ask which are the better manufacturers of fluororubber O-rings in China? - HCBBS Forum
85. Blockage in the hydrocracking gasoline heat exchanger - HCBBS Forum
86. Newcomer to storage and transportation, have a question - HCBBS Forum
87. The pipe is very tall; does installing a flow meter require lowering the elevation of a section of the pipe? - HCBBS Forum
88. How to design a pressure swing adsorption nitrogen generator based on an air compressor? Help, please help me. . . . . . - HCBBS Forum
89. Regarding the selection of pre-lift dry gas for catalytic cracking units [ - HCBBS Forum
90. Comprehensive Guide to Moving Equipment - HCBBS Forum
91. Saturated chlorine capacity of the reforming pre-hydrogenation high-temperature dechlorination vessel - HCBBS Forum
92. Safety valve calculation program - HCBBS Forum
93. State 5 diesel hydrogenation - HCBBS Forum
94. Discussion on the inlet and outlet areas of the heat exchanger shell and tube bundle - HCBBS Forum
95. 【Weekly Topic】【Storage & Transportation Version 20160401】 - HCBBS Forum
96. Erosion and corrosion of the calcium carbide slurry pressure control valve - HCBBS Forum
97. Material selection for expansion joints - HCBBS Forum
98. Environmental protection companies in Xi’an - HCBBS Forum
99. Selection of steam on/off valves - HCBBS Forum
100. Find the Prandtl number for the gas-liquid mixture - HCBBS Forum