English — Forum #723 (Page 312/642)

1. Topic: How to solve the problem of ash deposition, scaling, and pipe blockage in the synthesis gas pipeline of a gasification furnace? - HCBBS Forum
2. Who has training materials for learning the Central Control DCS ECS700? - HCBBS Forum
3. What happens if the pre-pump in a vacuum system has a higher pumping speed than the main pump? - HCBBS Forum
4. Regarding the selection of materials - HCBBS Forum
5. Safety facility inspection and maintenance plan - HCBBS Forum
6. Several synthetic rubber elastomer technologies - HCBBS Forum
7. Chemical cleaning of turbine lubricating oil pipelines - HCBBS Forum
8. Which tasks during on-site maintenance require the help of the manufacturer’s staff - HCBBS Forum
9. Factors affecting the reaction rate of MDI with ethylenediamine - HCBBS Forum
10. Selection of American standard precision steel tubes - HCBBS Forum
11. 【Chemical Industry Information】Seeking temperature rise and fall curves for MECS acid production converters - HCBBS Forum
12. 【Micro-fiction】Explain Safety Through Real Examples - HCBBS Forum
13. How long can everyone’s graywater heaters last? - HCBBS Forum
14. 【Weekly Topic】【 HVAC Version 20160330】 - HCBBS Forum
15. Occupational Health Daily Question 4.1: Participate for a prize; 5 correct answers and another prize will be given - HCBBS Forum
16. 【Daily Question No. 116】April 06, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
17. What are the reasons for the high residual carbon in the coarse and fine residues? - HCBBS Forum
18. Treatment of abnormal pH using the SBR process - HCBBS Forum
19. Ensure proper design oversight to reduce safety issues - HCBBS Forum
20. Can PDsoft be installed on 64-bit systems? - HCBBS Forum
21. Neutralization of acidic wastewater containing saturated sodium sulfate - HCBBS Forum
22. For the wet electrostatic precipitator located after the desulfurization tower in power plants, can 2205 duplex stainless steel be used as the material for the cathode wires? - HCBBS Forum
23. Environmental Protection Daily Post 4.05: Reward of 5 for participation, plus another 5 for answering correctly - HCBBS Forum
24. Precautions for installing low-temperature long-stem valves - HCBBS Forum
25. Using biogas slurry to control plant pests - HCBBS Forum
26. Separation of air from isoprene - HCBBS Forum
27. Occupational Health Daily Question 4.6: Participate for a prize; 5 points for correct answers, plus an additional 5 points - HCBBS Forum
28. 【International Women’s Day】Praising the women around me – the queens of strength and beauty - HCBBS Forum
29. Urgent request: Selection of lateral wind resonance loads for absorption towers equipped with windbreak rings - HCBBS Forum
30. Inspection of furnace tubes in coking heaters - HCBBS Forum
31. 【Daily Topic】【Production Version 20160331】 - HCBBS Forum
32. Talk about the calls you heard! - HCBBS Forum
33. COD issue in purified water - HCBBS Forum
34. Why do women cook more at home, while the chefs in restaurants are all men? - HCBBS Forum
35. What is antimony related to in catalytic cracking catalysts? - HCBBS Forum
36. Has anyone heard of Shaanxi Hualu Chemical Environmental Protection Co., Ltd.? - HCBBS Forum
37. Help needed: external dimensions of DN500 electric gate valve - HCBBS Forum
38. Workplace Debate Episode 73: When your boss repeatedly asks or implies that you work overtime, should you do so? - HCBBS Forum
39. Stirrer selection - HCBBS Forum
40. One Question per Day on Synthetic Ammonia (Series 64) - HCBBS Forum
41. Manual grinding and mechanical planing of gas valves - HCBBS Forum
42. Help with calculation software - HCBBS Forum
43. Can toluene be transported through steel-lined PTFE pipes? - HCBBS Forum
44. 【Daily Topic】【Civil Engineering Version 20160402】 - HCBBS Forum
45. What type of power does the absorbed power of a motor refer to? - HCBBS Forum
46. API 620 requirements for plate and bottom plate layout - HCBBS Forum
47. 2016 Phase 2 Pipeline Audit Training Hangzhou Team - HCBBS Forum
48. Methanol section: One question per day. Under what circumstances must a production unit be shut down urgently? 2016.03.29 - HCBBS Forum
49. Are there any regulations regarding the fixed exhaust connection for industrial boilers? Seeking advice - HCBBS Forum
50. Occupational Health Daily Question 4.5: Participate for a prize; 5 points for each correct answer, plus an additional 5 points - HCBBS Forum
51. 【Operations Team】March 2016 Salaries - HCBBS Forum
52. Ammonia pipeline labeling - HCBBS Forum
53. Temperature monitoring and control of heat treatment furnaces - HCBBS Forum
54. Does the design institute chosen for a chemical engineering project need to have qualifications in electrical engineering? - HCBBS Forum
55. Questions about the level gauge. - HCBBS Forum
56. How are the inlet and outlet of a heat exchanger determined? - HCBBS Forum
57. Crystallization issues occurred again after drying sodium chloride - HCBBS Forum
58. Catalytic cracking absorption tower - HCBBS Forum
59. Ammonia process electrowinning of zinc - HCBBS Forum
60. Question 27: Net positive suction head of centrifugal pumps on the first day of 2011 at 2 p.m - HCBBS Forum
61. How can hygroscopic catalysts be continuously added? - HCBBS Forum
62. Washing tower - HCBBS Forum
63. 【Weekly Topic】【HVAC Version 20160331】 - HCBBS Forum
64. Under what circumstances does the inlet pipeline cause the size of the container’s port to increase? - HCBBS Forum
65. Analysis of the reasons why two types of turbines in the air separation unit burn thrust bearings twice every six months - HCBBS Forum
66. Cassava starch factory wastewater - HCBBS Forum
67. How to prevent the valve from opening fully - HCBBS Forum
68. If the emission of particulate matter from catalytic cracking flue gas is controlled to less than 30 mg/m3n - HCBBS Forum
69. Workbench axial circumferential tangential stress - HCBBS Forum
70. I have a question for everyone regarding on-site use and the normally open, normally closed functions, as well as series power supply in DCS systems - HCBBS Forum
71. Is the L245NS not available for purchase in China? What can be used as a substitute? - HCBBS Forum
72. Bearing seal - HCBBS Forum
73. Hangyang Refrigerator Nitrogen Injection Volume - HCBBS Forum
74. Common problems of bucket elevators and solutions - HCBBS Forum
75. Problems with silicon cores in reduction furnaces - HCBBS Forum
76. 【Daily Topic】【Quality Version 20160331】 - HCBBS Forum
77. How is the spacing between the steam cylinder flanges determined? - HCBBS Forum
78. Pickling and passivation of nickel alloy equipment - HCBBS Forum
79. 【Weekly Topic】【Storage & Transportation Version 20160407】 - HCBBS Forum
80. Seeking help with Klaus sulfur recovery design (undergraduate graduation project) - HCBBS Forum
81. On the critical conditions of safety valves: sound speed calculation - HCBBS Forum
82. 2016 2nd Global Elastomers Applications and Development Summit (May 19-20, 2016) - HCBBS Forum
83. Regarding the automatic operation at high liquid level in the hydrogenation cooling section - HCBBS Forum
84. Time for domestic production of ion membrane electrolyzers - HCBBS Forum
85. 【Basic Knowledge of Occupational Health】 – Neuroses - HCBBS Forum
86. Diesel hydrogenation compressor - HCBBS Forum
87. Discussion on the selection of processes for oil removal using acidic water, solvent purification, and sulfur granulation - HCBBS Forum
88. Video: Diagrams showing the various components of AR-MAX1 - HCBBS Forum
89. In the design of safety valves, how are the sealing surfaces determined? - HCBBS Forum
90. Three principles of off-standard pipeline manufacturing - HCBBS Forum
91. 【Joint Study*】【Electrical Version 20160331】 - HCBBS Forum
92. Aspen is seeking help - HCBBS Forum
93. Does a multi-pass heat exchanger include a double pass? - HCBBS Forum
94. Methanol section: One question per day. What are the precautions for catalytic hydrogenation reduction? 2016.04.09 - HCBBS Forum
95. Request DELTAV11.3 operator manual - HCBBS Forum
96. 【Daily Question】March 30, 2016: Fill-in-the-blank question. The four major general-purpose resins at present are (） - HCBBS Forum
97. A question about the safety valve model: n based on the model - HCBBS Forum
98. It’s drowning; save it quickly. . . - HCBBS Forum
99. 【Basic Knowledge of Occupational Health】Toxic Products - HCBBS Forum
100. Plastics: Multiple factors driving continuous growth in the PVC market - HCBBS Forum