English — Forum #336 (Page 43/51)

1. Help: Physicochemical properties of ammonium acetate, waiting online - HCBBS Forum
2. 【Daily Question】Theoretical Foundation 2019.10.17 - HCBBS Forum
3. I would like to ask everyone how a 20% methane content in the air is achieved - HCBBS Forum
4. Automated Theory Knowledge: One Question per Day (8.11) - HCBBS Forum
5. How should the vaporization heat of water vapor be determined? - HCBBS Forum
6. 【Daily Question】Theoretical Foundation 2019.3.19 - HCBBS Forum
7. One Question per Day in Applied Chemistry (9-8) - HCBBS Forum
8. I would like to ask: if the temperature of the compressed steam is below 100 degrees, then its pressure is lower than atmospheric pressure; how is the condensed water removed in such a case? - HCBBS Forum
9. How to calculate the temperature at which condensation is required to reduce the methanol content in exhaust gases to the specified level - HCBBS Forum
10. 【Daily Question】Theoretical Foundation 2019.4.28 - HCBBS Forum
11. 【Daily Question】Theoretical Foundation 2019.2.22 - HCBBS Forum
12. Scientists use plants to produce carbon fiber to reduce costs and pollution - HCBBS Forum
13. What is the water solubility of dibutylformamide? - HCBBS Forum
14. 【Daily Question】Theoretical Foundation 2020.02.23 - HCBBS Forum
15. 【Daily Question】Theoretical Foundation 2020.04.20 - HCBBS Forum
16. Severe vibration of the valve downstream of the flash tank - HCBBS Forum
17. Ammonia is converted to liquid ammonia - HCBBS Forum
18. Daily Question on Automation Theory Knowledge (9.24) - HCBBS Forum
19. Boiling points of different substances at different pressures - HCBBS Forum
20. Are there Cl ions present in NaOH solution? - HCBBS Forum
21. Should the oil density at high temperature or at room temperature be used when calculating the reactor volume? - HCBBS Forum
22. Daily Question on Automation Theory Knowledge (Question 80) - HCBBS Forum
23. 【Daily Question】Theoretical Foundation 2019.3.12 - HCBBS Forum
24. Pressure calculation - HCBBS Forum
25. 【Daily Question】Theoretical Foundation 2020.02.16 - HCBBS Forum
26. Does anyone have the actual exam questions for the professional courses related to intermediate titles in the petrochemical industry? Thank you in advance for providing them. - HCBBS Forum
27. [Daily Question] Theoretical Basis 2020.03.30 - HCBBS Forum
28. 【Daily Question】Theoretical Foundation 2019.6.28 - HCBBS Forum
29. How to understand information in chemical engineering design drawings - HCBBS Forum
30. Information related to propylene refrigeration units - HCBBS Forum
31. Daily Question on Automation Theory Knowledge (Question 75) - HCBBS Forum
32. 【Daily Question】Theoretical Foundation 2019.7.2 - HCBBS Forum
33. 【Daily Question】Theoretical Foundation 2019.7.13 - HCBBS Forum
34. 【Daily Question】Theoretical Foundation 2019.4.5 - HCBBS Forum
35. 【Daily Question】Theoretical Foundation 2019.8.22 - HCBBS Forum
36. Is the flow rate of a gas flow meter related to the density of the medium? - HCBBS Forum
37. 【Daily Question】Theoretical Foundation 2019.12.3 - HCBBS Forum
38. Seeking help from members on this site - HCBBS Forum
39. What is included in a chemical process package?" - HCBBS Forum
40. Where can I find research papers on the applications of chemical engineering mathematical models? - HCBBS Forum
41. 【Daily Question】Theoretical Foundation 2019.2.16 - HCBBS Forum
42. Fullness Engineering Popular Science: Methods of Chemical Cleaning for Boilers - HCBBS Forum
43. Which type of level gauge is suitable for the level switch of powder materials? - HCBBS Forum
44. 【Daily Question】Theoretical Foundation 2019.8.24 - HCBBS Forum
45. Spontaneous irreversible processes are processes in which entropy increases - HCBBS Forum
46. Issues regarding the heating and cold blowing of molecular sieves - HCBBS Forum
47. Waste gas issues from concentrated sulfuric acid storage tanks - HCBBS Forum
48. 【Daily Question】Theoretical Foundation 2019.8.25 - HCBBS Forum
49. 【Daily Question】Theoretical Foundation 2019.8.21 - HCBBS Forum
50. Daily Question on Automation Theory Knowledge (8.7) - HCBBS Forum
51. Seeking purchase of hydrochloric acid, HG/T37383-2005 - HCBBS Forum
52. Conditions for the hydrolysis of nitriles by calcium hydroxide - HCBBS Forum
53. Container filled with hydrogen and methane, what are the pressure changes? Thank you - HCBBS Forum
54. What is the difference between process parameters and process indicators? - HCBBS Forum
55. Evaporator material carrying issue - HCBBS Forum
56. How to find out how many tons of gas have been used? - HCBBS Forum
57. Can the water from Tank 1 enter Tank 2? - HCBBS Forum
58. 【Daily Question】Theoretical Foundation 2019.7.26 - HCBBS Forum
59. [Daily Question] Theoretical Basis 2020.02.03 - HCBBS Forum
60. Daily Question on Automation Theory Knowledge (Question 96) - HCBBS Forum
61. Do these three solvents, propyl acetate, n-hexane, and water, have an azeotrope and a specific ratio? - HCBBS Forum
62. Daily Question on Automation Theory Knowledge (8.2) - HCBBS Forum
63. Help, what does the O in HOG and NOG mean? - HCBBS Forum
64. Series and parallel connection of pumps - HCBBS Forum
65. Volume of ethanol and water after mixing - HCBBS Forum
66. What is the lowest temperature for the reaction between sulfur and oxygen? - HCBBS Forum
67. 【Daily Question】Theoretical Foundation 2019.6.16 - HCBBS Forum
68. 【Daily Question】Theoretical Foundation 2019.12.11 - HCBBS Forum
69. 【Daily Question】Theoretical Foundation 2019.11.16 - HCBBS Forum
70. What does polymerization mean in the chemical industry? - HCBBS Forum
71. 【Daily Question】Theoretical Foundation 2019.2.27 - HCBBS Forum
72. 【Daily Question】Theoretical Foundation 2019.10.25 - HCBBS Forum
73. [Daily Question] Theoretical Basis 2020.02.07 - HCBBS Forum
74. 【Daily Question】Theoretical Foundation 2019.11.20 - HCBBS Forum
75. How should the solubility of potassium hydroxide in the table be understood? - HCBBS Forum
76. 【Daily Question】Theoretical Foundation 2019.4.25 - HCBBS Forum
77. Hydrocarbon ratio of fuel oil - HCBBS Forum
78. How to calculate the empty bed velocity in a fixed-bed reactor - HCBBS Forum
79. Waste acid treatment unit: Why is water added during the heating-up of the waste heat boiler? - HCBBS Forum
80. I’m seeking help from someone skilled in MATLAB and in chemical engineering to check whether there are any issues with this kinetic model - HCBBS Forum
81. Ammonia is converted into ammonia water - HCBBS Forum
82. How to control high levels of 1,3-butadiene in C4? Does its high value have an impact on the alkylation feed? - HCBBS Forum
83. One Question per Day in Applied Chemistry 8-14 - HCBBS Forum
84. 【Daily Question】Theoretical Foundation 2019.8.16 - HCBBS Forum
85. Heat calculation with gas-liquid equilibrium (acetaldehyde and water) - HCBBS Forum
86. 【Daily Question】Theoretical Foundation 2020.04.15 - HCBBS Forum
87. Regarding the detection of water-coal slurry concentration - HCBBS Forum
88. 【Daily Question】Theoretical Foundation 2019.6.14 - HCBBS Forum
89. Design problem solving, thank you! ! ! - HCBBS Forum
90. Regarding the content of sodium nitrite in DMF solution - HCBBS Forum
91. Production process of zinc sulfate heptahydrate - HCBBS Forum
92. Does \"supercritical\" in a power plant refer to the speed of the turbine? - HCBBS Forum
93. Selection and design of the condenser - HCBBS Forum
94. Regarding design temperature and operating temperature - HCBBS Forum
95. Daily Question on Automation Theory Knowledge (Question 83) - HCBBS Forum
96. 【Help Request】Process design calculations for polyvinyl alcohol and CAD drawings (required for undergraduate project) - HCBBS Forum
97. 【Daily Question】Theoretical Foundation 2019.7.9 - HCBBS Forum
98. Animated demonstration of the principles of 100 types of chemical engineering machinery and equipment - HCBBS Forum
99. Daily Question on Automation Theory Knowledge (Question 93) - HCBBS Forum
100. Introduction and Characteristics of the Three Main Processes in Ethylene Plants - HCBBS Forum