English — Forum #723 (Page 291/642)

1. How to inspect plate heat exchangers? - HCBBS Forum
2. Disabled: Fatty acid methyl ester ethoxylate FMEE contains large amounts of APEO - HCBBS Forum
3. In heat exchanger heat transfer calculations, should the two fluids flow counter-currently or in a cross-flow manner? - HCBBS Forum
4. 【Daily Question No. 154】April 13, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
5. Regarding the operation of the isooctane plant - HCBBS Forum
6. xc445408333 “I’m saving energy; where are you?” Petrochemical 0502: delayed coking – using steam water instead of steam - HCBBS Forum
7. Help needed with the design of fully welded plate heat exchangers! ! - HCBBS Forum
8. 【Daily Question】20160420 Requirements for steel pipes in Class II and III vessel shells (Top 50 participants + 2 rewards) - HCBBS Forum
9. 24V power supply interference issue - HCBBS Forum
10. Is the tip of the nebulizer in atomic absorption always clogged? - HCBBS Forum
11. Hydrogenation reactor dip head - HCBBS Forum
12. 【Professional Analysis】Summary of the LNG production process using coke oven gas and the operation status of related facilities - HCBBS Forum
13. New breakthroughs in energy and water savings for coal chemical industry: Hubei Zhongsheng Co., Ltd.’s \"closed-air cooling and recycled cooling water system\"” - HCBBS Forum
14. Given the pipe diameter and pressure, how to calculate the flow velocity? - HCBBS Forum
15. Questions regarding the exam related to the bid documents - HCBBS Forum
16. How to increase followers on a public account - HCBBS Forum
17. Which of liquid ammonia, ammonia water, and urea is corrosive to stainless steel? Which type of pressure gauge – a diaphragm pressure gauge or a regular stainless steel pressure gauge – is required? - HCBBS Forum
18. Materials resistant to high-temperature lithium chloride corrosion - HCBBS Forum
19. How to deal with leaks in hydrogen-related high-temperature areas? - HCBBS Forum
20. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 495 - HCBBS Forum
21. Water treatment RO - HCBBS Forum
22. 【Daily Topic】【Quality Version 20160420】 - HCBBS Forum
23. Problems with Shanghai Kent flowmeters - HCBBS Forum
24. Which domestic diesel engine is the best for fire pump sets? - HCBBS Forum
25. What are the advantages of having 3 compressors in operation with 1 as a backup? - HCBBS Forum
26. What are the temperature resistance values for valve materials CF8, CF8M, CF3, and CF3M? - HCBBS Forum
27. What are the technologies for producing isooctene from n-butylene? - HCBBS Forum
28. Problems with shielded pumps - HCBBS Forum
29. 【Daily Topic】【Civil Engineering Version 20160406】 - HCBBS Forum
30. The impact of moisture in the raw material belt on backwashing - HCBBS Forum
31. On the separation of m-p-cresol - HCBBS Forum
32. Is it considered a normal operating condition when the CO burner or CO boiler in an MTO unit is not in use? - HCBBS Forum
33. Specifications for measuring flange spacing to determine whether bolts are tightened - HCBBS Forum
34. Environmental Protection Daily Tip 4.21: Reward for participation of 5, plus an additional 5 for answering correctly - HCBBS Forum
35. Methanol condensation efficiency - HCBBS Forum
36. Question of the Day, April 14, 2016 – Catalysis Section: Forms of flue gas desulfurization - HCBBS Forum
37. 【Daily Topic】【Production Version 20160422】 - HCBBS Forum
38. Sign-in record post from April 14, 2016 - HCBBS Forum
39. How to perform text editing in bulk - HCBBS Forum
40. Looking for wet gas holder equipment diagrams? - HCBBS Forum
41. Is it possible to first interlock and then adjust the same valve? - HCBBS Forum
42. 【Daily Topic】【Production Version 20160415】 - HCBBS Forum
43. Connection from MCC electrical cabinet to DCS cabinet - HCBBS Forum
44. 【Daily Question】Chemical Engineering Principles 359: Deoxygenation of Boiler Feed Water (April 12) - HCBBS Forum
45. What is the typical dust concentration in the flue gas at the outlet of a 6 t/h circulating fluidized bed boiler? - HCBBS Forum
46. Turbine shaft seal extraction steam - HCBBS Forum
47. Determination of the head of the make-up water pump: The make-up water for the secondary water network is supplied by the primary water network - HCBBS Forum
48. What material is the oil injection check valve made of? - HCBBS Forum
49. 【Daily Topic】【Quality Version 20160412】 - HCBBS Forum
50. The difference between steel pipe wiring and steel tube wiring - HCBBS Forum
51. Equipment lubrication management - HCBBS Forum
52. How to adjust large fluctuations in slag reduction residual carbon? - HCBBS Forum
53. Differences among several insulation atlases, scope of application - HCBBS Forum
54. The Aspen simulation for the potassium metavanadate process design lacks property data - HCBBS Forum
55. One Question per Day on Synthetic Ammonia (Series 70) - HCBBS Forum
56. What does the compressor current depend on? - HCBBS Forum
57. What are the specifications for the gaskets of external thread M27x2 bimetallic thermometers and thermocouples? - HCBBS Forum
58. 【Chemical Industry News】Process for producing propylene using propane as raw material - HCBBS Forum
59. I’m new to the air separation industry. I have a question: why aren’t pressure swing adsorption nitrogen generators used instead of PSA nitrogen generators? ? ? - HCBBS Forum
60. What type of coal should be selected for starting up a pressurized coal gasification furnace (space furnace)? - HCBBS Forum
61. Environmental Protection Daily Tip – April 19: Reward for participation, plus 5 more points for answering correctly - HCBBS Forum
62. Questions about ASME B36.10M and B36.19M - HCBBS Forum
63. Stirring reaction equipment - HCBBS Forum
64. How can one determine whether the insulation and cooling tables provided by the design institute are appropriate? What are the aspects? Help needed - HCBBS Forum
65. jacketed container - HCBBS Forum
66. Environmental Protection Tip of the Day – April 20: Reward for participation, plus an additional reward for answering 5 questions correctly - HCBBS Forum
67. 【Daily Topic】【Production Version 20160413】 - HCBBS Forum
68. Piling work for the foundations of the 5,000 m3 LPG spherical tank and the 20,000 m3 LNG double-wall storage tank is in progress, while bidding processes for civil engineering works and tank installation are underway! - HCBBS Forum
69. 【Daily Topic】【Electrical Edition 20160406】 - HCBBS Forum
70. Heat transfer oil pump piping issues - HCBBS Forum
71. Biological microscope - HCBBS Forum
72. How to deal with sodium hypochlorite that has a red color - HCBBS Forum
73. I am looking for a schematic diagram of the hydraulic system for axial flow fans, or other relevant information. Thank you - HCBBS Forum
74. What are high flash point and true flash point? - HCBBS Forum
75. The jade-selling scam I encountered today - HCBBS Forum
76. Significant breakthroughs have been achieved in heavy oil processing technology, with the demonstration unit for super suspended beds operating successfully. Do you guys know about this? - HCBBS Forum
77. Jinlin Sheet Metal Unfolding Software 1.7c Cracked Version - HCBBS Forum
78. 【Daily Question】 2016 04 12 Hydrogenation Sector Multiple-choice Question - HCBBS Forum
79. 【Picture of the Day】2016 04 19 Take a look – what device is this? Does anyone know what its function is? In the original. - HCBBS Forum
80. The synthetic gas pipeline is covered in ash, which often leads to high pressure differences in the gasification system. How should this be addressed? - HCBBS Forum
81. Questions regarding pure wind and seismic loads in CAESAR II - HCBBS Forum
82. API RP 571-2003 Mechanisms of Equipment Damage in Refineries – Chinese Version - HCBBS Forum
83. 【Daily Topic】【Civil Engineering Version 20160420】 - HCBBS Forum
84. I’m spending money, where are you? @I’m saving energy, where are you? - HCBBS Forum
85. How to change PROCESS LINE toUTILITY LINE in SPPID - HCBBS Forum
86. Connection of pipes to moving equipment - HCBBS Forum
87. Regarding the location of the blind flange - HCBBS Forum
88. Xi’an Dinghua Meets Yangling International Marathon - HCBBS Forum
89. Sodium sulfide is added in electro-galvanizing; now there are two strong bases, sodium hydroxide and sodium sulfide – how to determine their concentrations? - HCBBS Forum
90. On the corrosion of carbon steel by chloride ions - HCBBS Forum
91. 【Daily Question】Advanced Processing 20160414 Multiple Choice: When the temperature of a unit mass of a certain substance increases or decreases by 1 K, the amount of energy it absorbs... - HCBBS Forum
92. Can hydrophobic pipes and low-point drain pipes be shared? - HCBBS Forum
93. Is the throttling at the pump outlet problematic? - HCBBS Forum
94. Biogas is the most effective biofuel - HCBBS Forum
95. 【Daily Question】20160421 Coating thickness of composite tube sheets (top 50 participants + 2 bonuses) - HCBBS Forum
96. Approval for water conservation measures for 2.2 billion cubic meters of coal-to-natural gas production in Anhui - HCBBS Forum
97. Domestic and industrial sludge is processed into raw materials, which are then solidified and dehydrated to produce sintered insulation bricks - HCBBS Forum
98. What will happen to the plant if benzene gets mixed into the crude oil, and how will the specifications of the gasoline and diesel produced change? - HCBBS Forum
99. Determination of trace arsenic in naphtha - HCBBS Forum
100. Do waste acid storage tanks need lightning protection and grounding? - HCBBS Forum