English — Forum #723 (Page 320/642)

1. Who can tell me about the problems that can occur in catalytic cracking units and the solutions for them? - HCBBS Forum
2. 【Daily Question】 Hydrogenation Sector 2016-03-26 Multiple Choice - HCBBS Forum
3. Is the centrifugal pump isolated separately or is it pressurized together when the system is pressurized? - HCBBS Forum
4. Does the deoxidation reaction in the hydrogenation unit produce water that reacts with carbon? - HCBBS Forum
5. Gas station process pipelines - HCBBS Forum
6. Carbon steel tanks and crude oil - HCBBS Forum
7. How to reduce the entry of condensate water caused by duct condensation into the compressor in MVR systems - HCBBS Forum
8. Heat exchange tubes of sulfur condenser - HCBBS Forum
9. Who has the PID and equipment list for converting liquid sulfur into liquid sulfur dioxide? The company is planning to set up such a facility - HCBBS Forum
10. 92# gasoline blending - HCBBS Forum
11. Which parameter conditions in a delayed coking unit cause an increase in dry gas yield? - HCBBS Forum
12. The company is undergoing structural changes, there are job transfers, and the future is uncertain; could some seniors give me some advice? - HCBBS Forum
13. Which specification specifies the requirement to install retaining walls or collection ponds at loading platforms? - HCBBS Forum
14. Coking dry gas and natural gas hydrogen production plants, pre-sulfurization of cobalt-molybdenum hydrogenation reactors - HCBBS Forum
15. Sign-in record post from March 23, 2016 - HCBBS Forum
16. Steel-lined SPE material - HCBBS Forum
17. There is TPU technology in China that is better than that of Yantai Wanhua, and it is installed in Zhangjiagang - HCBBS Forum
18. 【Joint Study*】【Civil Engineering Version 20160319】 - HCBBS Forum
19. How to delay scaling in heat exchangers? - HCBBS Forum
20. Tianjin Jinxin is seeking drafters: 9K+ per hour in overtime pay + housing provided; work location: Shanghai - HCBBS Forum
21. Is the water quality good for high-rise building water supply? - HCBBS Forum
22. The intestines are filled with regret! ! ! ! ! - HCBBS Forum
23. May I ask, when heat-treating the welds of chromium-molybdenum steel pipelines, can the connecting bolts be treated together? What are the consequences of that? Urgent! - HCBBS Forum
24. What is the significance of the approval for the environmental impact assessments of the two coal chemical projects in Shanxi? - HCBBS Forum
25. Regarding the clearance issue of the compressor shaft - HCBBS Forum
26. Who has the new content and answers for the Professional English test in 2016? Thank you, my fellow test-takers - HCBBS Forum
27. For salt acid dosing pumps, is a diaphragm pump better or a peristaltic pump? - HCBBS Forum
28. I recommend a soup that helps clear heat and cool the blood: crucian carp stewed with sophora flowers and imperata rhizomes - HCBBS Forum
29. Questions regarding the measurement issues of metal rotor flowmeters - HCBBS Forum
30. Gas buffer tank - HCBBS Forum
31. What is the method for defining special types of work? - HCBBS Forum
32. 【Basic Knowledge of Occupational Health】: The Incubation Period - HCBBS Forum
33. How many standard cubic feet of gas can liquid H2S in a cylinder release? - HCBBS Forum
34. What is the largest size of stainless steel spherical tank produced in China? - HCBBS Forum
35. Environmental Protection Daily Tip – March 17: Reward for participation, plus 5 more points for answering 5 questions correctly - HCBBS Forum
36. One Question per Day on Synthetic Ammonia (Series 55) - HCBBS Forum
37. The Roots pump temperature is very high - HCBBS Forum
38. Issue of laying the 380V voltage and digital signals for the electric valve together - HCBBS Forum
39. What should be the distance between the end faces of the two half-couplings, in millimeters? - HCBBS Forum
40. Need SBCAD and PCCAD. - HCBBS Forum
41. Occupational Health Daily Question 3.28: Participate for a prize; 5 questions, and an additional prize for answering 5 correctly - HCBBS Forum
42. With equipment manufacturers becoming increasingly specialized, what is the need for design companies anymore? - HCBBS Forum
43. Help with heat exchanger - HCBBS Forum
44. Clumping of powdered monoammonium phosphate - HCBBS Forum
45. The steam heat exchanger is now in operation - HCBBS Forum
46. Regarding pump switching in multi-stage pumps - HCBBS Forum
47. Human resource allocation for PVC automatic sealing machine maintenance - HCBBS Forum
48. 【Daily Question No. 136】March 17, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
49. Hydraulic excavators play a very important role in various types of production - HCBBS Forum
50. How to improve the corrosion and wear resistance of lithium battery filling pumps? - HCBBS Forum
51. Principle of producing caustic soda by the diaphragm method - HCBBS Forum
52. "What technical challenges must coal chemical industry overcome during the 13th Five-Year Plan period? - HCBBS Forum
53. Selection of wet-type acetylene water ring compressors - HCBBS Forum
54. How to control a water pump using a digital display - HCBBS Forum
55. Which domestic units can conduct hydrogen stripping tests? - HCBBS Forum
56. How is the product quality of diesel hydrogenation units controlled? - HCBBS Forum
57. Why can biological enzyme degradation of organic matter in wastewater prevent eutrophication of water bodies? - HCBBS Forum
58. One Question per Day on Synthetic Ammonia (Series 56) - HCBBS Forum
59. A water plant capable of producing 10,000 tons of water per day uses grid flocculation tanks; based on the standards for vertical shaft flow rates, the shafts are small in size and numerous – how to deal with this... - HCBBS Forum
60. How to deal with the tar-like substance that forms in sulfuric acid storage tanks - HCBBS Forum
61. Seeking electronic version of specifications - HCBBS Forum
62. One Question per Day on Synthetic Ammonia (Series 47) - HCBBS Forum
63. Detection of moisture in heavy coal tar - HCBBS Forum
64. How to address the poor sedimentation property of aerobic sludge and MBR sludge? Seeking guidance - HCBBS Forum
65. 【Daily Topic】【Production Version 20160323】 - HCBBS Forum
66. How is hydrogen stored in the hydrogenation/hydrogenation-like processes? - HCBBS Forum
67. Do I need to remember all those rules for the exam, especially those with lots of numbers? - HCBBS Forum
68. For long-distance pipelines, if the inner wall becomes scaled, how should it be cleaned? - HCBBS Forum
69. After studying this post, reply to it to be upgraded to “Grade 1, Haichuan Primary School”” - HCBBS Forum
70. Safe distance between 2.5t heat transfer oil furnace and steam boiler - HCBBS Forum
71. Calculation differences between screw unloaders and screw feeders - HCBBS Forum
72. Purification of water in the pool inside the greenhouse - HCBBS Forum
73. One question per day; those who answer correctly receive 5 wealth points, and those who participate receive 2 wealth points； Question 272 - HCBBS Forum
74. What is a vehicle loading and unloading station? - HCBBS Forum
75. General knowledge on biogas power generation - HCBBS Forum
76. Electric valves are installed in the valve chamber - HCBBS Forum
77. Ammonia-ammonia heat exchanger diaphragm tear holes - HCBBS Forum
78. Who closed this post - HCBBS Forum
79. EXCEL2007 Professional Computer Exam Practice Questions - HCBBS Forum
80. Seeking help with packing seal issues in boiler feed water pumps - HCBBS Forum
81. SVPV or PV DRAFT chemical equipment drawing software - HCBBS Forum
82. On the selection of pressure control valves for calcium carbide slurry - HCBBS Forum
83. Relationship between nozzle opening and cooling capacity - HCBBS Forum
84. 【Daily Topic】【Civil Engineering Version 20160325】 - HCBBS Forum
85. The mobile phone verification feature is now available to premium members - HCBBS Forum
86. How many female chemical engineers are considering changing careers like me? ? ? - HCBBS Forum
87. Is the design temperature of the pipeline taking into account low ambient temperatures? - HCBBS Forum
88. The relationship between NH3 in catalytic cracking regeneration flue gas and the regeneration method, along with the chemical reaction equations - HCBBS Forum
89. How to cool wastewater containing 5% sulfuric acid - HCBBS Forum
90. I went to Dawukou to attend the pump technology exchange meeting and new product launch event organized by Shanghai Kaiquan Pump Industry. - HCBBS Forum
91. Talking about something in the CBA – underhanded tactics on the court? It was still a last-minute decision! ? - HCBBS Forum
92. The materials in the material database included with SEASAR ii correspond to China’s material grades - HCBBS Forum
93. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 467 - HCBBS Forum
94. Dear sea friends, what fluorescent tracer do you use in your circulating water? - HCBBS Forum
95. Regarding how to enter the Wenzhou market - HCBBS Forum
96. Hydrogen pipeline network pressure - HCBBS Forum
97. Daily life tips - HCBBS Forum
98. How is the solubility of helium in water at 140 Mpa calculated? - HCBBS Forum
99. Occupational Health Daily Question 3.21: Participate for a prize; 5 answers correct and another prize will be given - HCBBS Forum
100. Liquid holdup setting in packed towers - HCBBS Forum