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Technical analysis of the oil storage tanks at Dalian New Port**

2010-08-04View Original

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I’m posting this here to hear technical analyses of the reasons behind the issues with the oil storage tanks at Dalian New Port. I think there are three key points: 1. Whether additives can be added to the vent valve, and whether the valve chosen is appropriate; if not, what type of valve should be used? 2. How should the emergency shut-off valves for oil pipelines be designed, and is the electronic control reasonable? How many valves should be added? (It is said that there is only one valve in Dalian this time.) 3. Is the distance between the two oil pipelines appropriate? What should it be?
Reply #22010-08-05
Hehe, can’t anyone explain it to me?
Reply #32010-08-05
I think the key lies in human factors; if it’s handled carefully during product selection and design, there won’t be any problems. There are too many accidents happening in the country these days; let’s consider carefully how many of them are caused by natural disasters and how many by human error. CNPC should be dealt with in the same way as BP was by the United States.
Reply #42010-08-06
I’m an outsider in the field of oil field storage and transportation. I have never understood why desulfurizing agents are added during crude oil transportation. By intuition, crude oil desulfurization should be carried out at the refinery, rather than by adding desulfurizing agents during transportation. Based on the analysis of this incident, the equipment used for adding desulfurizing agents at the site was a temporary measure; it was not professionally designed, nor did it have appropriate interlock systems to stop the addition of desulfurizing agents in case of a shutdown in crude oil supply.
Reply #52010-08-07
It’s impossible to handle a state-owned enterprise like in the United States! Only a few officials will be removed! . . . . . . It’s just the situation
Reply #62010-08-08
The addition of crude oil desulfurizer during venting was not designed for, nor was hazard identification and risk assessment carried out. The main cause of the accident was still related to management issues
Reply #72010-10-08
This issue is related to the ** problem. Haha, I’ve gathered a lot of information, but I still can’t figure out what brand it is
Reply #82010-10-08
Crude oil desulfurizers are primarily oil-soluble heterocyclic compounds used to chemically remove hydrogen sulfide and thiol compounds from natural gas, crude oil, and fuel oils. They undergo irreversible reactions with hydrogen sulfide at a rapid rate, and increasing the temperature facilitates the removal of thiol compounds. Crude oil desulfurization is carried out to reduce the formation of sulfides such as sulfurous acid during storage and processing, thereby minimizing corrosion of equipment. Sulfur in crude oil exists in the form of hydrogen sulfide or elemental sulfur; in such cases, strong oxidizing agents can be added to remove the sulfur. However, if too much of these agents is used or if high temperatures are generated, fires can easily occur, and this is what leads to accidents.
Reply #92013-08-08
The new crude oil terminal on Changxing Island?

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