I have bench scale gasification reactor (over 850 degrees C, 5 to 8 bar). I input N2, O2, steam and coal into reactor. N2 and O2 line is tied in steam line. So, N2, O2 and steam are mixed up in the same line before entering reactor.
My trouble is that I can't input the gas flow rate I want. For example, when I enter 500 LPH of N2 in my control program, real flow is under 500 LPH. I think there is some interference between lines or flows. Do I have to divide each line or there are other solutions?
Have an insight or suggestion?
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Re: How do I input the gas flow rate in a bench scale gasification reactor?
13 June 2011 at 1:29pmI am afraid there is not enough information to make any intelligent comments. It may be a pressure balance issue, an instrument calibration issue or a system affectation. I'd need to see a simplified P&ID and understand how the measurements are made to comment. I'd guess that the issue may be the individual flows are measured at slightly different temperature and/or pressure than the mixture. If you are comparing the outlet to the inlet flows then I'd suspect a leak or absorption or reaction in the bed. The other issue is that if the meters have different accuracies it may all be in that.
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