English — Forum #723 (Page 269/642)

1. 【Haichuan Coin Freelancer】Seeking PID diagram for 3.5 million tons of heavy oil catalytic cracking - HCBBS Forum
2. 【Weekly Topic】【Home Version 20160505】 - HCBBS Forum
3. Production process for demineralized water equipment in thermal power plant boilers - HCBBS Forum
4. Environmental Protection Tip of the Day 5.10: Reward for participation, plus 3 more rewards for answering correctly - HCBBS Forum
5. What is the difference between coker wax oil and deasphalted oil? - HCBBS Forum
6. Can device images in JPG format be converted to DWG files? - HCBBS Forum
7. One question per day; those who answer correctly receive 5 wealth points, and those who participate receive 2 wealth points； Question 297 - HCBBS Forum
8. Pressure vessels, cylinders, fittings – Welding procedure qualification: Methods and scope of application - HCBBS Forum
9. How to achieve internal anti-corrosion protection for seamless steel pipes in seawater - HCBBS Forum
10. 【Q&A Question 026】May 16, 2016 - HCBBS Forum
11. The wide variety of screw-type chillers is the main reason for the high recognition of these companies - HCBBS Forum
12. Please help analyze this issue - HCBBS Forum
13. Sign-in record post from May 14, 2016 - HCBBS Forum
14. May I ask, what type of gasoline is this, and what production process was used to create it, given that it contains 72% alkanes, only 1.5% olefins, around 25% aromatics, and a vapor pressure of 93? - HCBBS Forum
15. Why is there another network issue? - HCBBS Forum
16. Does a screw pump need to be primed? - HCBBS Forum
17. How to understand the increase in local resistance in a pipeline when a valve is closed? - HCBBS Forum
18. Sign-in record post from May 15, 2016 - HCBBS Forum
19. Compressor anti-surge control - HCBBS Forum
20. Solubility of lithium hydroxide - HCBBS Forum
21. Operation of the pump - HCBBS Forum
22. The production process for battery-grade lithium carbonate uses industrial-grade lithium carbonate and recycled lithium fluoride as raw materials - HCBBS Forum
23. 【Daily Topic】【Engineering Version 20160509】 - HCBBS Forum
24. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 512 - HCBBS Forum
25. LNG cryogenic liquefaction - HCBBS Forum
26. 【Daily Question】Advanced Processing 20160507 Multiple Choice: The heat exchange methods for batch reactors include jacketed type, coiled tube type, recirculation... - HCBBS Forum
27. I would like to understand the control of SS in the saline wastewater generated as a by-product of sodium-based catalytic flue gas desulfurization - HCBBS Forum
28. Hydrogen sulfide stripping tower - HCBBS Forum
29. Urgent, urgent, urgent: what data is needed for simulating the dew point temperature at the top of the tower? - HCBBS Forum
30. SW6 Process Equipment Strength Calculation Software - HCBBS Forum
31. Outer diameter 25MM, wall thickness 4MM – 304 seamless steel pipe, pressure resistance standards - HCBBS Forum
32. Reviewing the Old to Discover the New (Series 22) - HCBBS Forum
33. 【Daily Question】Chemical Engineering Principles 376: Mixed-bed Regeneration (May 14) - HCBBS Forum
34. How to increase DO in the Carrousel oxidation ditch process for industrial wastewater treatment? - HCBBS Forum
35. Past exam questions for the Chemical Engineering major - HCBBS Forum
36. Help needed: physical properties of waste gas from coke ovens - HCBBS Forum
37. Simulation of the water pocket in the distillation column reflux drum in refineries - HCBBS Forum
38. Environmental Protection Daily Tip – May 16: Reward for participation; an additional reward for answering 3 questions correctly - HCBBS Forum
39. How to deal with excessive iron ions in circulating water? - HCBBS Forum
40. Let’s talk about a TV series today - HCBBS Forum
41. Regarding SAMA diagrams - HCBBS Forum
42. Recycling and treatment of waste sulfuric acid in the silicone industry - HCBBS Forum
43. How to deal with the low flash point of Runer II? - HCBBS Forum
44. Features of ultra-pure water equipment in the steel industry - HCBBS Forum
45. 【Daily Topic】【Electrical Edition 20160509】 - HCBBS Forum
46. 【Daily Topic】【Production Version 20160510】 - HCBBS Forum
47. Aspen simulation resources for styrene ethylbenzene units - HCBBS Forum
48. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 513 - HCBBS Forum
49. Why does the eja transmitter show a negative value? Neither the positive nor negative pressure sides are blocked - HCBBS Forum
50. Regarding conventional Claus catalysts - HCBBS Forum
51. Issues in representing mechanical seal cooling systems in P&ID diagrams - HCBBS Forum
52. Sign-in record post from May 17, 2016 - HCBBS Forum
53. Circulating water advanced purification equipment – no chemical addition required - HCBBS Forum
54. Production of butadiene by the acetonitrile method - HCBBS Forum
55. Difference between inorganic zinc silicate primer and inorganic zinc silicate workshop primer - HCBBS Forum
56. How to mark the stainless steel grades and standard numbers for heat exchanger tube boxes - HCBBS Forum
57. Does an MVR evaporator require a vacuum pump? - HCBBS Forum
58. 【Polypropylene】Reasons for the high amount of powder in loop-type polypropylene T502 - HCBBS Forum
59. Gas chromatography - HCBBS Forum
60. Judging furnace temperature levels - HCBBS Forum
61. Is the ammonia synthesis tower considered an adiabatic reactor? - HCBBS Forum
62. Issues regarding the development of the HVAC and engineering project section - HCBBS Forum
63. On the removal of thiols after selective hydrogenation of catalytic gasoline - HCBBS Forum
64. What material to choose for the head template? - HCBBS Forum
65. State Administration of Work Safety: Report on the national work safety situation in the first 4 months - HCBBS Forum
66. Are there financial rewards for posting in the irrigation area? - HCBBS Forum
67. Recruiting air separation process engineers - HCBBS Forum
68. Why does aluminum powder pose a risk of explosion in a carbon dioxide environment? ? - HCBBS Forum
69. One Question per Day on Synthetic Ammonia (Series 93) - HCBBS Forum
70. pH drops in the aerobic tank - HCBBS Forum
71. 11 years of experience in chemical engineering processes – seeking a new opportunity - HCBBS Forum
72. What form is good for a check valve installed on water pipes? - HCBBS Forum
73. Working principle of water softening equipment for hot water boilers - HCBBS Forum
74. What is silane surface treatment for carbon steel valves? - HCBBS Forum
75. Time parameters for pressure swing adsorption - HCBBS Forum
76. One Question per Day on Synthetic Ammonia (Series 92) - HCBBS Forum
77. The Rio Olympics – Hai Chuan becomes popular - HCBBS Forum
78. Why is the dry point of the naphtha produced by diesel hydrogenation different from the initial boiling point of the diesel? - HCBBS Forum
79. I’m asking the administrators: why is my post gone? - HCBBS Forum
80. Problem of high temperature at the top of the regeneration tower - HCBBS Forum
81. 【Weekly Topic】【Home Version 20160512】 - HCBBS Forum
82. If I want to learn English related to *safety, what books are good to read? - HCBBS Forum
83. Pressure 2Mpa. Can 20 steel seamless tubes be used at a temperature of -13°C? - HCBBS Forum
84. The medium is steam and condensed water; valve selection under high pressure and high temperature conditions - HCBBS Forum
85. Solving pipeline balanced flow meters? - HCBBS Forum
86. The principle of the evacuator - HCBBS Forum
87. Introduction to DCS Water-Coal Slurry Additives - HCBBS Forum
88. When will I be able to reach grade 2 in elementary school? - HCBBS Forum
89. Calculations for cooling of equipment and pipelines - HCBBS Forum
90. 【Daily Question】May 10 Where is the antifoaming agent injected in the coke tower? - HCBBS Forum
91. Environmental Protection Tip of the Day 5.14: Reward for participation, plus 3 more rewards for answering correctly - HCBBS Forum
92. Selection of imported safety valves - HCBBS Forum
93. The Celtics are pursuing Butler; the Bulls won’t let him go easily - HCBBS Forum
94. Looking for Hastelloy welder training institutions in Guangdong! - HCBBS Forum
95. Safety Technology Exchange Edition: Daily Question (2016.5.14) - HCBBS Forum
96. 【Picture of the Day】2016 05 09 What are the workers in the picture doing? There are wealth rewards for those who guess correctly! - HCBBS Forum
97. Corrosion of stainless steel pipes - HCBBS Forum
98. Safety Technology Exchange Edition: Daily Question (2016.5.7) - HCBBS Forum
99. During the summer, crayfish are very popular. Let’s discuss how to prepare them in delicious ways - HCBBS Forum
100. How should the amount of hydrazine added to boiler feed water be determined? - HCBBS Forum