For a gas phase at temperatures between 280 and 300 degrees, what type of heat exchanger should be used?
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Heat the alkenes with carbon numbers C5 to C20 in a gas phase at a temperature between 280 and 300 degrees (not exceeding 300 degrees). If no heating furnace is used and the material flow rate is 40 tons per hour, would it be feasible to use heat transfer oil along with a heat exchanger for heating? What type of heat exchanger would be suitable in this case? (Plate type, ordinary type, or coiled tube type?), what should be the minimum temperature of the heat transfer oil in this case (310 degrees or 320 degrees?) ) Thank you
Hello, we have experience with fully welded plate heat exchangers for gas-to-gas and gas-to-liquid applications. Please contact tdcqtc to discuss further
It can be heated using a phase-change heat transfer medium system, with the heat transfer oil vaporizing to serve as a heat source.
I haven’t used a phase-change system; could you give me an introduction to it? I know that this type of heat transfer oil uses biphenyl-biphenyl ether. Thank you! My QQ: 46918545
Plate type won’t work, because your temperature is too high.
Plate exchangers are definitely not an option; fully welded, disposable units have too high operating costs. Shell-and-tube exchangers are the best choice. I have similar application scenarios as well – you can contact me to discuss it further: qsxs888888
Shell-and-tube types can be used； This heat exchanger won’t be too large; full welding is also an option ； Additionally, heat pipe types can also be used... It’s necessary to choose the appropriate one based on the requirements.
I have handled similar cases; thermal oil with a temperature around 320 degrees is sufficient. In this type of application, the heat transfer coefficient on the alkene gas side is much lower than that on the thermal oil side; therefore, reducing the thermal resistance of the gas is key to improving heat transfer. It is also necessary to consider the suitability under the specified temperature and pressure conditions. Gas flows through the inner finned heat exchange tubes, while the heat transfer oil flows through the shell side; a wider temperature range for the gas further enhances the advantages. My contact information is on my signature; those who are interested can communicate by phone (provided that the alkane gas does not contain dust).