Please teach me how to clean a system that has been heated with hot oil
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I would like to ask: after using heat transfer oil to heat the shell side of a system such as a tubular reactor, the heat transfer oil exits the reactor system, and then water needs to be added to the shell side of the reactor. How can the shell side of the reactor be cleaned after the heat transfer oil has left it? Have you encountered a similar situation? Could you give me some advice? It would be better to be more specific, such as what is used for cleaning? What should the cleaning temperature be? How long is the cleaning time? If cleaning with hot water is used, what substances need to be added to the water to assist in the cleaning? Thank you.
May I ask the original poster, is this exchange regular or occasional? What is the heating temperature of heat transfer oil?
General chemical equipment is cleaned with specialized cleaning agents.
Moderator, if you carry out such actions on a regular basis, it may not be in line with the actual practices in chemical processing. Heat transfer oil is difficult to clean thoroughly, and it is not allowed for cooling water that has not been cleaned properly to enter the circulating water system. If the water is not dried out after it enters but before the heat transfer oil enters, an accident may occur. :lol.
More answers from you all. Due to the need for high-temperature heating, heat transfer oil must be used. However, this oil is only utilized for about a week, for the reduction of the catalyst. Once normal production begins, heat transfer oil is no longer needed for heating; instead, water is used to remove the heat from the reactor, as the reaction is highly exothermic. Half a year after production begins, the reactor is heated again using heat transfer oil, and this process is repeated; in other words, it is done once every six months for a period of one week, while water is used as the heat transfer medium at all other times. That’s why I’m asking about cleaning. Can heat transfer oil be treated in the same way as ordinary machine oil during cleaning? For newly manufactured reactors, the machine oil on their surface needs to be removed before use in order to ensure heat conduction. Can they be treated equally?