2 replies to this topic

[procengsas]

Hi All,

How does a cyclone feed its solids back into a fluidised bed reactor pressurised to say 10 bar? Does it use a special loading valve? If any one could assist, i will be most greatful.

Thanks
proceng

[procengsas]

Hello,

Is there no one who could assist??

Thanks

[Rama]

Dear process engineer,

It would have been of help if you had configured your 'About Me' page in the forum. This helps the members to understand your background, experience, industry etc. and respond appropriately.

Coming to your query: Please let us know what is the pressure difference between your cyclone and the reactor. I expect it to be very less. which means the cyclone and the reactor would be designed for the 10 bar pressure. I have not come across a cyclone which has a large Pressure difference of even a few bars on the discharge side. What is the solid that it is handling? The standard discharge mechanism is usually an air lock in the form of a rotary valve, or a double flapper valve. However, depending upon the duty, double knife gate valves programmed to operate at pre-set times or inputs is possible. A lot depends on your actual duty; solids, their sizes, the gas, temperature, etc. Even patented valves with special seals to take care of the high pressure difference might be required for your duty. In such a case you might have to contact specialist manufacturers in the field.

This might not be answering your question, but at least the complexity of the problem could now be understood by you.

Best wishes.