English — Forum #723 (Page 633/642)

1. Please everyone, **untie it** - HCBBS Forum
2. 【Project】2.5 billion cubic meters of coal-based clean gas project to be established in Fengcheng - HCBBS Forum
3. Does electric heating in Zone 2 with explosion protection also need to be explosion-proof? - HCBBS Forum
4. 99% of a child’s success comes from 1% change on the part of the mother! - HCBBS Forum
5. Have the fresh graduates found jobs? - HCBBS Forum
6. I need help understanding how to simulate the desulfurization process after coal gasification in Aspen. My graduation project is urgent; please help me, experts! - HCBBS Forum
7. One question per day: 6 wealth points for correct answers, 2 wealth points for participation, Question 220 - HCBBS Forum
8. There are two questions on air separation; please take a look - HCBBS Forum
9. What is the maximum dehydration effect that a dehydration device can achieve? - HCBBS Forum
10. Pre-treatment work before putting high, medium, and low-pressure steam pipelines into use - HCBBS Forum
11. Seeking technical cooperation with research institutions at various universities - HCBBS Forum
12. Samson’s locator, complete with an actuator and a handwheel; the DCS commands 100 at the site while closing it to 50, and commands 50 at the site with full closure - HCBBS Forum
13. On the dry gas seal of pumps - HCBBS Forum
14. Steel plate material marking - HCBBS Forum
15. How is the 0.3 MPa/min emergency pressure relief valve in the hydrogenation unit calculated? - HCBBS Forum
16. How do I convert kg/h to kilomoles per hour? - HCBBS Forum
17. Seeking advice on the separation of clean and dirty water streams - HCBBS Forum
18. Looking for information on the selection and configuration of liquid oxygen pumps - HCBBS Forum
19. Problems with fixed balls and floating balls? - HCBBS Forum
20. Issues with serial communication between STEP7 200 and a computer - HCBBS Forum
21. How should aromatic carbonates be translated more appropriately? - HCBBS Forum
22. Regarding the manufacturing process, does our design need to meet just one standard, or do we have to comply with all those numerous standards? - HCBBS Forum
23. The 4-in-1 gas detector purchased by the company is about to arrive. What should be taken into consideration during the inspection? I’d appreciate some advice from experts! - HCBBS Forum
24. Unloading hose for tank area - HCBBS Forum
25. 【Daily Question】Wastewater Knowledge - 090 (June 3) (2 points for answering, 4 points for a correct answer) - HCBBS Forum
26. Can I bring copied materials for the Tianjin chemical engineering professional exam? - HCBBS Forum
27. What issues are considered first during equipment maintenance and component assembly? - HCBBS Forum
28. Questions regarding the design of the concentrated sulfuric acid tank area - HCBBS Forum
29. Help with flame arrestor - HCBBS Forum
30. Good chemical enterprises in Jining Chemical Industry Park - HCBBS Forum
31. What is the definition of a hydrogen-handling system? Does the hydrogenation section of the polypropylene plant belong to the hydrogen-handling system? - HCBBS Forum
32. Scrap remover flushing water - HCBBS Forum
33. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for participation； Question 62 - HCBBS Forum
34. Heat transfer salt pump - HCBBS Forum
35. Daily Question June 2, 2015 (Safe Communication): A reward of 3 Wealth points for replies; 3 additional Wealth points for correct answers – participation comes with a reward - HCBBS Forum
36. Friends who are attending the sulfuric acid training, remember to share it! - HCBBS Forum
37. Intrinsic safety reevaluation - HCBBS Forum
38. 【Daily Question】Wastewater Knowledge-099 (June 12) (Answer +2, Correct Answer +4) - HCBBS Forum
39. Low-temperature control at the top of the deethanizer tower - HCBBS Forum
40. The grade of the refrigerant oil with a dynamic viscosity of 68 mm2/s - HCBBS Forum
41. Due to the increase in the catalyst circulation rate, the carbon difference between the raw catalyst and the regenerated catalyst decreases, thereby improving the effective activity of the catalyst... - HCBBS Forum
42. SIS configuration issue - HCBBS Forum
43. Discussion on burner issues - HCBBS Forum
44. Since there is chlorine and petroleum ether inside the pipeline, can stainless steel valves be used? - HCBBS Forum
45. Looking for CAD drawings of various specifications for channel steel, flat steel, angle steel, and section steel? - HCBBS Forum
46. Time jumps in the GPS of the methanol production plant - HCBBS Forum
47. Effect of steam pressure fluctuations on leaks in heat exchanger pipelines - HCBBS Forum
48. Difference between using calcium oxide and calcium carbonate as solubilizers in water-coal slurry gasification - HCBBS Forum
49. What are the reasons for the low evaporation rate in an MVR system? - HCBBS Forum
50. Discussion on the use of pitot tube flow meters - HCBBS Forum
51. Dear experts, I have a question: when calibrating a flow meter for steam using water, how should the flow rate be corrected? - HCBBS Forum
52. Can a oxygen valve be lubricated? - HCBBS Forum
53. Centrifugal pumps are noisy - HCBBS Forum
54. Why cannot magnetic particle testing be performed on the ring welds of nozzles with a DN of less than 80? - HCBBS Forum
55. What equipment is used to detect fires in chemical storage tanks? - HCBBS Forum
56. Have you ever used a magnetic mechanical seal? - HCBBS Forum
57. Weekly topic: 5 wealth points for those who answer correctly, 2 wealth points for those who participate； Question 70 - HCBBS Forum
58. Consultation on waste heat boiler drum operation - HCBBS Forum
59. How to determine the heat transfer coefficients inside and outside the heating coil - HCBBS Forum
60. Can the backwash water from the soft water pre-filter tank be discharged into domestic wastewater, and can the pre-filter tank be eliminated? - HCBBS Forum
61. How to address a series of challenges such as concrete durability? ——Silane impregnation technology - HCBBS Forum
62. There are part-time technical consultant positions – how is the salary calculated for these? - HCBBS Forum
63. Question 5 in the morning session of the 2013 case - HCBBS Forum
64. Selection of metal materials for 98% sulfuric acid - HCBBS Forum
65. Can a single-flange capillary pressure transmitter be used to measure the pressure of high-speed oxygen? - HCBBS Forum
66. The driving school has stopped holding exams. Why? - HCBBS Forum
67. What are some good ways to utilize hydrogen? - HCBBS Forum
68. Questions about molecular sieves - HCBBS Forum
69. Are the Cavaliers definitely going to be the champions this time, with the Warriors just playing for fun? - HCBBS Forum
70. Blasting for dust removal - HCBBS Forum
71. Regarding the dilution of COD - HCBBS Forum
72. Tiantai University Major Review Tutorial 4-42 – Help Needed - HCBBS Forum
73. How to distinguish scratches from cracks? - HCBBS Forum
74. Issues regarding the combination of gasket material and bolt material - HCBBS Forum
75. Issues related to the benefits of oil blending - HCBBS Forum
76. The effluent from the secondary sedimentation tank is clear, but it contains sludge particles, commonly known as \"floating sludge\". How can this be resolved? - HCBBS Forum
77. I encountered an error while simulating in Aspen; please help me, experts - HCBBS Forum
78. Water ring type vacuum pump for coal chemical PSA systems - HCBBS Forum
79. Defluorination of phosphate solutions containing calcium dihydrogen phosphate - HCBBS Forum
80. I would like to ask about the corrosion resistance of slurry pump materials A33 and polyurethane - HCBBS Forum
81. Process beginners seeking help from various experts - HCBBS Forum
82. The proposal I wrote for the company after returning from Syria in 2011 - HCBBS Forum
83. Regarding the feed thickness and nominal thickness of the head - HCBBS Forum
84. Ask everyone about the industry-standard learning methods - HCBBS Forum
85. Find the motivation to change your life - HCBBS Forum
86. Need help translating document annotations - HCBBS Forum
87. Low-temperature heat recovery - HCBBS Forum
88. Valve selection for evacuating a container before filling it with atmospheric pressure gas - HCBBS Forum
89. An error occurred when SYSTEM1 connected to the server via the client - HCBBS Forum
90. Glass paint - HCBBS Forum
91. Are there any workers from Jiujiang Petrochemical? - HCBBS Forum
92. What type of valve should be used as the shut-off valve on the pump inlet pipe of DN65? - HCBBS Forum
93. Acid inlet pipe and acid return pipe on the absorption tower - HCBBS Forum
94. Adjustment and flow rate of centrifugal blowers - HCBBS Forum
95. Job search for professional engineers in petrochemical piping fields - HCBBS Forum
96. Thermal resistance indication issue - HCBBS Forum
97. Parallel distance issue between long-distance pipelines and buried cables - HCBBS Forum
98. Can the ammonia buffer tank be located near the house’s gasification room? - HCBBS Forum
99. 【Daily Question】Wastewater Knowledge - 098 (June 11) (2 points for answering, 4 points for a correct answer) - HCBBS Forum
100. There’s a mistake in that part of TianDa version 1-69 - HCBBS Forum