English — Forum #723 (Page 589/642)

1. What factors can cause an increase in ash and char in coal pulverization pressurized gasification? - HCBBS Forum
2. Agreement to Assist with Commencement of Work - HCBBS Forum
3. I have a question regarding the registration of Certified Safety Engineers - HCBBS Forum
4. Testing items for trimethylbenzene - HCBBS Forum
5. Uses of heat-shrinkable caps - HCBBS Forum
6. Shaanxi Coal Chemical Energy Co., Ltd.’s 1 million tons per year coal-based dimethyl ether project - HCBBS Forum
7. Vacuum distillation: What are the factors that cause a decrease in the vacuum level in the tower? How should it be solved? - HCBBS Forum
8. Regarding winning bids at low prices - HCBBS Forum
9. What are the typical dimensions of drainage ditches in chemical plant plant areas? - HCBBS Forum
10. Selection between air-open and air-close for pneumatic control valves - HCBBS Forum
11. How are nitrogen oxides formed in the flue gases generated by the recycled gas used in coke ovens? - HCBBS Forum
12. Why are no control valves installed at the outlets of the forced circulation water pumps in boilers? - HCBBS Forum
13. Temperature transmitter - HCBBS Forum
14. Issues with LNG pre-cooling? - HCBBS Forum
15. Is Emerson DCS after-sales service adequate? - HCBBS Forum
16. Let me ask again, how many tons of load can the house withstand? - HCBBS Forum
17. The steam relief gate valve of the dry quenching coke boiler makes a screeching sound - HCBBS Forum
18. Problems with safety valve discharge - HCBBS Forum
19. Total sulfur level in low-temperature methanol washing is excessive - HCBBS Forum
20. How should the design liquid level height of a storage tank be determined? - HCBBS Forum
21. Platform connection methods and pipeline layout between storage tanks - HCBBS Forum
22. I don’t have any knowledge in the petrochemical industry, and now I want to work in this field. How can I quickly master the basics of petrochemistry? - HCBBS Forum
23. Instructions for E+h static pressure level gauge - HCBBS Forum
24. Question 19, case study question, second afternoon of 2010 - HCBBS Forum
25. Three-legged centrifuges have been phased out - HCBBS Forum
26. Under what circumstances should fire linkage be set up? - HCBBS Forum
27. 7 20 Case Study on the Handling of a Fault in a Duty Control Valve - HCBBS Forum
28. Discussion on the 7.16 accident at Rizhao Shida Technology - HCBBS Forum
29. When counting bolts and nuts in axonometric drawings, is it generally the number of individual items or the number of sets? - HCBBS Forum
30. Amount of heating steam used in distillation operations - HCBBS Forum
31. Carbon disulfide industry - HCBBS Forum
32. A suggestion for uploading images - HCBBS Forum
33. Where are bellows and expansion joints used? - HCBBS Forum
34. Function of the return valve at the outlet of the reciprocating compressor and the unloader - HCBBS Forum
35. Regarding the design qualifications of branch offices - HCBBS Forum
36. Daily Question 2015.7.28 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (single-choice question) - HCBBS Forum
37. How to model CAESAR II bushings - HCBBS Forum
38. Requirements for hydrogen sulfide content in circulating hydrogen. - HCBBS Forum
39. Issues with selecting level gauges and flow meters? - HCBBS Forum
40. The most annoying part of the project design process is having to keep modifying the designs over and over again, right? - HCBBS Forum
41. Can ultrasonic testing (UT) not be used for stainless steel clad plate equipment? - HCBBS Forum
42. Turn sludge into a valuable resource? - HCBBS Forum
43. The screw pump was evacuated, causing the pipes to vibrate and crack; seek a solution - HCBBS Forum
44. Gas dew point - HCBBS Forum
45. PFD review for process package design - HCBBS Forum
46. Gas chromatography FID flameout - HCBBS Forum
47. What does KO pot mean? - HCBBS Forum
48. 80 tons of piston force - HCBBS Forum
49. Is it feasible to supply fuel to the boiler directly from a tank truck? - HCBBS Forum
50. The big winner, the Clippers – how will they fare in the new season? - HCBBS Forum
51. The prospects of methanol-to-gasoline production - HCBBS Forum
52. Which system’s current input card in the central control unit supports HART? - HCBBS Forum
53. The environmental impact report for the Lu’an coal-to-oil project has not been approved... - HCBBS Forum
54. Does benzyl alcohol belong to hazardous substances?** - HCBBS Forum
55. What are the larger sulfur processing plants in China? - HCBBS Forum
56. The “Delete this post” option is no longer available in the editor - HCBBS Forum
57. Pre-cooling in a cold box - HCBBS Forum
58. How many minutes is the typical c9 induction period? - HCBBS Forum
59. The necessity of releasing the original questions and answers for the Registered Chemical Engineer Practice Qualification Examination - HCBBS Forum
60. Are the shaft seal nitrogen and shaft seal steam, along with their outlet vents, all in the same pipe? - HCBBS Forum
61. 【Daily Question】Wastewater Knowledge-105 (July 23) (2 points for answering, 4 points for a correct answer) - HCBBS Forum
62. The issue in \"Guide to Offshore Oil Engineering Design, Volume 12\" has been resolved; additional rewards available! - HCBBS Forum
63. Can one shut-off valve be controlled when the flow rates of the two are low? - HCBBS Forum
64. Air compressor impeller types - HCBBS Forum
65. Is there a relationship between steam temperature and pressure? - HCBBS Forum
66. Oil film oscillation and sliding bearings - HCBBS Forum
67. SH/T3521-2013 - HCBBS Forum
68. Coking wastewater - HCBBS Forum
69. Comparison of material corrosion resistance, strength, temperature resistance, and price - HCBBS Forum
70. How to evaluate the quality of a HAZOP analysis? - HCBBS Forum
71. Recycling of propylene glycol methyl ether acetate-containing waste liquid - HCBBS Forum
72. Must pressure vessels be equipped with safety valves? - HCBBS Forum
73. Is there a mandatory requirement for electrical and instrumentation cable trays to be placed above pipes? - HCBBS Forum
74. Selection of low-power solenoid valves for opening and closing valves - HCBBS Forum
75. Regeneration of used lubricating oil – what are the boiling points of various base oils? - HCBBS Forum
76. Sign-in record post from July 22, 2015 - HCBBS Forum
77. I’d like to ask the brothers in the chlor-alkali industry: what level is the total ammonium content in the raw salt controlled at? - HCBBS Forum
78. 【Daily Question】 July 23rd: What is the medium used during the air pressure testing of coke towers? - HCBBS Forum
79. What are the principles for designing the pressure difference before and after a corner valve? - HCBBS Forum
80. Air compressor air intake volume - HCBBS Forum
81. What are the impacts of a high benzene content in the reformation feedstock on the plant? - HCBBS Forum
82. 【Daily Question】Question from Issue 20150720 - HCBBS Forum
83. Solid material conveying problem - HCBBS Forum
84. Generally, what is the allowable difference between the oxygen flow rate in air separation and the oxygen flow rate during gasification? - HCBBS Forum
85. Discussion on the main cooling and drying evaporation phenomena and their causes - HCBBS Forum
86. Is it difficult to manually operate a 400-size ball valve? - HCBBS Forum
87. In the MBR tank, the COD value is 50 at the inlet and 26 at the outlet, but both ammonia nitrogen and total phosphorus remain unchanged between the inlet and outlet streams - HCBBS Forum
88. Find a download link for a newer version of Aspen - HCBBS Forum
89. What types of hydrocarbons do the code names CP, CA, and CN represent for the distillate oil fractions corresponding to minus 2 and minus 3? - HCBBS Forum
90. Domestic MTP technology - HCBBS Forum
91. How to simulate the pipe openings on the tower head - HCBBS Forum
92. Polymer Plus can be found on the Aspen Plus side - HCBBS Forum
93. How is the cooling area of a honeycomb jacket calculated? Is there a formula for it? - HCBBS Forum
94. How should one spend the 10 minutes before leaving work? - HCBBS Forum
95. Single-flange level transmitter - HCBBS Forum
96. Coke oven exhaust gas - HCBBS Forum
97. Security management agency - HCBBS Forum
98. Is there any software that can quickly calculate the flow rate, velocity, and diameter of water-pipe systems? - HCBBS Forum
99. 【New Energy Applications】Comprehensive Overview of Solar Highway Construction - HCBBS Forum
100. China United Engineering Company is urgently seeking engineering managers - HCBBS Forum