English — Forum #337 (Page 87/163)

1. The design pressure for the pipeline equipment at natural gas gate stations in urban gas supply is 10 MPa; should it be designed according to the standards for long-distance transmission stations? - HCBBS Forum
2. [Daily Question] Basic Process Knowledge (Multiple Choice) 20190103 - HCBBS Forum
3. Question regarding the safety valve of the heat exchanger - HCBBS Forum
4. What is the principle behind air circulation in narrow alleys? ! - HCBBS Forum
5. Are there any ongoing projects? - HCBBS Forum
6. [Daily Question] Basic Process Knowledge (True/False) 20190321 - HCBBS Forum
7. May I ask how to determine the flow rate and pressure for the last air supply fan we installed? - HCBBS Forum
8. How are the amount of vapor in the high-pressure flash tank, the amount of liquid after flashing, and the amount of solids in the liquid calculated? - HCBBS Forum
9. Chloride ion issue when alternating the use of brine and circulating water in reaction vessels - HCBBS Forum
10. How can a torch LPG permanent light determine flow rate based on pipe diameter and pressure? - HCBBS Forum
11. What does a process engineer need to look at on-site? - HCBBS Forum
12. Price trend of 45% sodium hydrosulfide over the past 5 years - HCBBS Forum
13. Are the gasoline tanks and ethanol tanks in the oil depot sealed with nitrogen? - HCBBS Forum
14. How much are the patent fees for Exxon’s flexible coking? - HCBBS Forum
15. Issues with the recovery of ethyl acetate and propylene along with water removal - HCBBS Forum
16. What types of plastics can withstand high temperatures of 140 degrees Celsius? ? Need to be long-term and stable - HCBBS Forum
17. For an underground hot water tank, what kind of pump should be used – a submersible pump or an underwater pump? - HCBBS Forum
18. How are petrochemical plants subjected to strength testing or airtightness testing? - HCBBS Forum
19. Binary phase diagram problem - HCBBS Forum
20. Nitrogen seal pipeline setup - HCBBS Forum
21. [Daily Question] Basic Process Knowledge (Multiple Choice) 20190111 - HCBBS Forum
22. Is HG20583 suitable for gas station pipeline design? - HCBBS Forum
23. [Daily Question] Basic Process Knowledge (True/False Questions) 20190313 - HCBBS Forum
24. 【Process Engineering Division – Pipeline and Valve Technology Exchange Forum – Daily Question – Questions 03-25】 - HCBBS Forum
25. Daily Question » [Static Equipment – AC Version... Question 69] March 10, 2019 – Revised multiple-choice questions... Everything is going well - HCBBS Forum
26. Can asbestos gaskets and rubber gaskets be used on pipelines for flammable liquids? ? - HCBBS Forum
27. Can an ammonia solution production device be installed directly on a liquid ammonia truck? - HCBBS Forum
28. GC3 pressure pipelines transport non-toxic, non-flammable fluids in pipes with a pressure of ≤1.0 MPa - HCBBS Forum
29. The dike surrounding the 32% caustic soda storage tank and the ground inside the dike need to be made leak-proof - HCBBS Forum
30. [Daily Question] Basic Process Knowledge (True/False Questions) 20190330 - HCBBS Forum
31. What are these two? What is it for? - HCBBS Forum
32. What are the prospects for thermal engineering design? - HCBBS Forum
33. What materials are suitable for 2% and 48% potassium hydroxide storage tanks? - HCBBS Forum
34. I would like to ask the experts about NOx removal processes - HCBBS Forum
35. Seeking help with the melamine process! - HCBBS Forum
36. Pipeline, elbow pressure drop - HCBBS Forum
37. Two streams of steam with different temperatures and pressures are mixed; when using PRO II for modeling, clicking to run results in an error. I seek guidance from experts - HCBBS Forum
38. Experts, I have a question: does the foundation for equipment by the sea need to be corrosion-resistant? - HCBBS Forum
39. Problems with sodium aluminate crystallization - HCBBS Forum
40. Discussion on Issues in HAZOP Analysis Results - HCBBS Forum
41. 【Daily Question】 【AC Version for Static Equipment...Question 02】 January 2, 2019 – True/False Multiple Choice Question...Everything is going well - HCBBS Forum
42. 195-degree saturated steam is cooled by 40 degrees after passing through the heat exchanger - HCBBS Forum
43. What type of low-pressure steam flow meter is suitable, one that can display mass flow rate and cumulative volume? - HCBBS Forum
44. Looking for an instrument for online detection of lubricant content in gases - HCBBS Forum
45. A layered tank design with continuous stratification and continuous discharge - HCBBS Forum
46. I would like to ask the experienced colleagues: I have just found a chemical engineering design firm in Zibo; it is classified as a Class A firm in this industry. Should it be considered a large firm or a small one? - HCBBS Forum
47. [Daily Question] Basic Process Knowledge (True/False) 20190413 - HCBBS Forum
48. Discussion on the backwash scheme for desalinated water using distilled non-condensable gas venting - HCBBS Forum
49. CAD will not open - HCBBS Forum
50. What does the instrument symbol SW mean? - HCBBS Forum
51. Question regarding solid waste melting - HCBBS Forum
52. What is the purpose of a safety valve installed behind the manual door at the inlet of the condensate pump? - HCBBS Forum
53. When two different fans are connected in parallel, how should the air pressure be determined? - HCBBS Forum
54. Can an electromagnetic flowmeter be used for reverse osmosis? - HCBBS Forum
55. What kind of valve is this? There’s no legend provided; I hope those of you who have more experience can help guess based on their knowledge. It’s located at the base of the remote pressure transmitter - HCBBS Forum
56. Seeking advice on electronic-grade sulfuric acid production process - HCBBS Forum
57. Natural gas pipeline hydraulic calculation software - HCBBS Forum
58. Burner modification - HCBBS Forum
59. [Help] Ester reactions – what are the reasons for low yield? - HCBBS Forum
60. How to determine whether the water used for air-cooling condensation in a compressor is circulating water? - HCBBS Forum
61. Hydrogenation unit shut down - HCBBS Forum
62. Fundamentals of Manufacturing Processes (Multiple Choice) 201812 7 - HCBBS Forum
63. Can Party A transfer it to the design institute? - HCBBS Forum
64. [Daily Question] Basic Process Knowledge (Multiple Choice) 20190223 - HCBBS Forum
65. Regarding the issue of solvent vapor recovery - HCBBS Forum
66. [Daily question] [Static Equipment Exchange Edition...Question 04] Multiple choice question on January 4, 2019...All your wishes come true - HCBBS Forum
67. When designing new projects, how are the adiabatic furnace chambers and water-cooled wall furnace chambers determined? Are there any rules? - HCBBS Forum
68. Regarding the operation of the coupler - HCBBS Forum
69. The boundaries of the road - HCBBS Forum
70. Ester reactions – what causes low yields? - HCBBS Forum
71. The volume of the storage tanks for Class A and B liquids is not large, so they want to place them inside the factory building; they say that if their name is changed to \"metering tanks\", they can be placed inside the factory building - HCBBS Forum
72. Purpose of the make-up fuel gas line in the propane dehydrogenation compression process - HCBBS Forum
73. Is it necessary to standardize the explosion protection rating of all instrumentation and equipment in the chemical engineering design process? - HCBBS Forum
74. [Daily question] [Static Equipment Exchange Edition...Question 54] Multiple choice question on February 23, 2019...The work went well - HCBBS Forum
75. Comprehensive utilization of waste mineral oil - HCBBS Forum
76. 【Daily Question】 【AC Version for Static Equipment...Question 86】 March 27, 2019 – Revised multiple-choice questions...Everything is going well - HCBBS Forum
77. I earnestly ask all the experts for their guidance! ! ! ! - HCBBS Forum
78. Dichloromethane extraction problem - HCBBS Forum
79. 【Daily Question】【AC Version for Static Equipment...Question 44】February 13, 2019 – True/False Question...Everything is going well - HCBBS Forum
80. Calculations of relevant flow rates for several heating and cooling processes in the reaction vessel - HCBBS Forum
81. Job Opening - HCBBS Forum
82. Daily Question】 [Static Equipment – AC Version... Question 46] February 15, 2019 – True/False Multiple Choice Question... Everything is going well - HCBBS Forum
83. Haichuan New Version APP Scan Tutorial (One-Click Login to Desktop Version) - HCBBS Forum
84. The issue of the hydrogen air-fuel ratio - HCBBS Forum
85. 【Daily Question】 【AC Version for Static Equipment...Question 36】 December 21, 2018 – True/False Multiple Choice...Enter to win a prize - HCBBS Forum
86. What is the purpose of controlling the circulation water volume using the reactor cooling water temperature? - HCBBS Forum
87. Heat exchanger - HCBBS Forum
88. Phase 2 [Discussion Thread] Integration and [Daily Question Summary] WORD version with table of contents - HCBBS Forum
89. Polyethylene cryogenic recovery system - HCBBS Forum
90. Where does the ethanol in ethanol-blended gasoline come from? - HCBBS Forum
91. What does it mean that in GB151-2014 6.5.3.2, the sealing surface of the partition groove is at the same level as the annular sealing surface? - HCBBS Forum
92. Help needed - HCBBS Forum
93. I’m looking for a process flow diagram of the mature Mannheim process for producing potassium sulfate; it’s needed for my graduation project. Thank you to all experts out there - HCBBS Forum
94. What are the solutions for wastewater containing benzene compounds? - HCBBS Forum
95. The functions of the auxiliary valves and additional valves of safety valves - HCBBS Forum
96. Can steel-clad pipes be used for steam pipes laid in ducts? - HCBBS Forum
97. Minimum distance between the storage tank emergency shut-off valve and the tank wall? - HCBBS Forum
98. Online selection and quotation system for Roots blowers – proven to be very useful - HCBBS Forum
99. Production of anhydrous sulfuric acid - HCBBS Forum
100. Fitting weight calculation - HCBBS Forum