English — Forum #723 (Page 252/642)

1. What is the normal range for the content of thermally stable salts in the amine solution within the amine solution regeneration system? - HCBBS Forum
2. Petroleum and Natural Gas Module Project Management - HCBBS Forum
3. Opportunities and Challenges: Industry 4.0 will bring a revolutionary change to China - HCBBS Forum
4. The issue of pre-sulfurization for hydrogen production - HCBBS Forum
5. Treatment of wastewater from distillery bottoms - HCBBS Forum
6. Compilation of MDEA Desulfurization and Decarbonization Data - HCBBS Forum
7. What to do after the heating steam for the heat tracing pipes in winter in the north is discontinued - HCBBS Forum
8. How to control the zinc oxide content in the production of zinc chloride using the zinc calcine method? - HCBBS Forum
9. Reasons for the evacuation of the reforming pre-hydrogenation feed pump - HCBBS Forum
10. Environmental Protection Tip of the Day – May 18: Reward for participation, plus 3 more rewards for answering correctly - HCBBS Forum
11. Regarding the issue of oxygen flow rate design - HCBBS Forum
12. 【Basic Knowledge of Occupational Health】: The Lethal Dose for 50% of the Population, LD50 - HCBBS Forum
13. Looking for resources - HCBBS Forum
14. Use of steam hoses at field service stations - HCBBS Forum
15. Question from a beginner - HCBBS Forum
16. What is the change in SO3 at the inlet and outlet of the SCR denitration reactor? - HCBBS Forum
17. “During the 13th Five-Year Plan period, integrated petrochemical bases with oil refining capabilities will be established in China - HCBBS Forum
18. Seeking help with a relay issue - HCBBS Forum
19. How to input the outlet flow rates at the top and bottom of the heat pump distillation column - HCBBS Forum
20. Testing fee standards - HCBBS Forum
21. 【Daily Question No. 182】May 24, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
22. Regarding the classification of wiring signals in junction boxes - HCBBS Forum
23. Calculation of venting time - HCBBS Forum
24. Why can’t the purified water produced by the catalyst in the liquid ammonia reduction converter used in hydrogen production plants be directly fed into the deaerator? ? - HCBBS Forum
25. Problems with Aspen in simulating reactions - HCBBS Forum
26. How to address the safety hazards associated with secondary water supply in residential areas? - HCBBS Forum
27. Diagnosing the condition of production equipment using radioactive instruments - HCBBS Forum
28. Who has the ANSYS software? - HCBBS Forum
29. What tests are performed on API 6D soft-sealed ball valves? - HCBBS Forum
30. Can a heat exchanger with crystals use multiple passages? - HCBBS Forum
31. 【Daily Judgment NO.13】May 21, 2016 - HCBBS Forum
32. Environmental Protection Tip of the Day 5.27: Reward for participation, plus 3 more rewards for answering correctly - HCBBS Forum
33. The new MVR evaporation system and traditional multi-effect... - HCBBS Forum
34. Thirteen unsafe behaviors - HCBBS Forum
35. Design pressure value for fixed-roof atmospheric oil tanks - HCBBS Forum
36. Gel and explosive polymerization - HCBBS Forum
37. The thermocouple at the inlet of the heating furnace is severely worn; we would appreciate it if experts could help resolve this issue. - HCBBS Forum
38. 【Picture of the Day】2016 05 25 What is the device in this picture? - HCBBS Forum
39. How is the water demand calculated for desulfurization using the lime-gypsum method? - HCBBS Forum
40. Differential pressure level range - HCBBS Forum
41. The issue of ultimate vacuum in liquid ring vacuum pumps - HCBBS Forum
42. The level of the reflux tank at the top of the hydrogen sulfide gas tower is unclear - HCBBS Forum
43. Clearance of the centrifugal pump bearing cover - HCBBS Forum
44. 【Weekly Topic】【Storage & Transportation Version 201605023】 - HCBBS Forum
45. Aspenone V9 was released, May 25, 2016 - HCBBS Forum
46. Discuss the issue of temperature difference in shell-and-tube heat exchangers? - HCBBS Forum
47. Accident case analysis: one question per Monday (3) – +3 wealth for participation, plus 1–5 wealth for correct answers - HCBBS Forum
48. Are there carbon steel TUBE pipes? - HCBBS Forum
49. What is the difference between track ball valves and regular ball valves in hydrogenation units? They look pretty similar - HCBBS Forum
50. I’m going to be busy soon~ The company computers have started restricting access to the internet... - HCBBS Forum
51. 【Weekly Topic】【Production Version 201605020】 - HCBBS Forum
52. Seeking advice - HCBBS Forum
53. Can a hydrogenation reactor do without an ash basket? - HCBBS Forum
54. Issues regarding the design of denitrification beds - HCBBS Forum
55. How to clean a cooling tower? How to maintain the circulating cooling water pipeline system? And how to clean a plate heat exchanger condenser? - HCBBS Forum
56. Newbie seeking guidance with Aspen - HCBBS Forum
57. Instructions for the Tourism Edition regarding the 【One Image per Day】 campaign - HCBBS Forum
58. 【Daily Question】2016 05 23 Hydrogenation Section Multiple-choice Question Suitable for pipelines with a diameter of over 100 millimeters.. - HCBBS Forum
59. 【Weekly Topic】【Storage & Transportation Version 201605024】 - HCBBS Forum
60. Is the amount of circulating water used in ammonia synthesis plants very large? - HCBBS Forum
61. Thermal and cold protection as well as sound insulation for oil and petrochemical pipelines - HCBBS Forum
62. Gold is not a treasure; the book of wisdom is the true treasure. Everything else is empty, but goodness is not. - HCBBS Forum
63. Regarding the selection of blades - HCBBS Forum
64. Reviewing the Old to Discover the New (Series 26) - HCBBS Forum
65. Reformation catalyst enhancement - HCBBS Forum
66. Converter heat exchanger - HCBBS Forum
67. Natural gas recovery of light hydrocarbons and dehydration process - HCBBS Forum
68. Vapor ratio, vapor ratioaaaaa - HCBBS Forum
69. Problem with inclined screw feeding - HCBBS Forum
70. Are there any low-noise blowers? - HCBBS Forum
71. Questions about the fire protection design codes for petrochemical enterprises? ? Urgent! Urgent! Urgent! ! ! - HCBBS Forum
72. Summary of Basic Knowledge - HCBBS Forum
73. Can the actuating mechanism of a gate valve be replaced without shutting it down? - HCBBS Forum
74. High and low pressure oil stations - HCBBS Forum
75. Occupational Health Daily Question 5.26: Participate for a prize; 3 answers correct and you’ll get another prize - HCBBS Forum
76. 【Daily Question No. 147】May 23, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
77. What causes a sudden increase in the cell voltage of a zero-gap electrolyzer? - HCBBS Forum
78. Questions regarding the selection of distillation column types - HCBBS Forum
79. Equivalent diameter in the heat transfer process - HCBBS Forum
80. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； May 23rd - HCBBS Forum
81. 【Weekly Topic】【Home Edition 20160525】What is the ideal size for a home? - HCBBS Forum
82. Security Technology Exchange Edition: Daily Question (2016.5.23-24) - HCBBS Forum
83. Maintenance of the alkylation unit; the product pipelines are severely blocked - HCBBS Forum
84. The flange spacing of the external float level gauge does not match the flange spacing provided on the equipment; as a result, the flanges cannot be aligned during installation. What should be done? - HCBBS Forum
85. Permanent magnet speed regulator - HCBBS Forum
86. [Repost] Various types of waste in Chinese factories, as summarized by a German production director [Text only] - HCBBS Forum
87. Differences between cross-flow pumps and piston pumps - HCBBS Forum
88. The cylinder stroke reaches 300mm; how to install the positioner? - HCBBS Forum
89. 【Haichuan Freelancer】Customized study*material package proposal - HCBBS Forum
90. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； May 25th - HCBBS Forum
91. Which manufacturer’s adsorbent (molecular sieve) is specified for the Polyethylene Univation process? - HCBBS Forum
92. Looking for design plans for a bungalow or a two-story cottage? - HCBBS Forum
93. Relationship between wall thickness and inner diameter of elbows - HCBBS Forum
94. What units in a typical refinery produce hydrogen as a by-product? - HCBBS Forum
95. “The shift from coal to gas is an inevitable trend, and there is significant demand for natural gas - HCBBS Forum
96. What exactly is checked in a safety inspection? - HCBBS Forum
97. 【Daily Question】2016 05 26 Hydrogenation Section Multiple Choice The bottom of the tower ( ) is used to measure substances. - HCBBS Forum
98. One Question per Day on Synthetic Ammonia (Series 99) - HCBBS Forum
99. How can I find materials for animated demonstrations of various valves? - HCBBS Forum
100. Can heat pipes explode or fail? - HCBBS Forum