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From: Winston on 21 May 2010 17:59 On 5/21/2010 2:25 PM, Bob Eld wrote: (...) > Here's a thought: Heat the carrier gas in a separate tube long enough to > insure the gas easily gets to temp. Sounds like a plasma torch. http://www.cogeneration.net/plasma_pyrolysis.htm --Winston
From: Dirk Bruere at NeoPax on 21 May 2010 19:34 On 21/05/2010 22:59, Winston wrote: > On 5/21/2010 2:25 PM, Bob Eld wrote: > > (...) > >> Here's a thought: Heat the carrier gas in a separate tube long enough to >> insure the gas easily gets to temp. > > Sounds like a plasma torch. > http://www.cogeneration.net/plasma_pyrolysis.htm > > > --Winston Or CO2 laser? Whatever is used, it is going to take a lot of power. What total mass will be heated to 1000 degC? -- Dirk http://www.transcendence.me.uk/ - Transcendence UK http://www.blogtalkradio.com/onetribe - Occult Talk Show
From: lektric.dan on 21 May 2010 22:26 On May 21, 4:25 pm, "Bob Eld" <nsmontas...(a)yahoo.com> wrote: > > Here's a thought: Heat the carrier gas in a separate tube long enough to > insure the gas easily gets to temp. That way you shouldn't have to dump so > much instantaneous power to get the rate. Then inject the hot gas into the > reactor stream. Now, the rate of temp change of the material only involves > the carrier and the reactant and not the quartz, heating elements, etc. > There would be much less thermal mass to worry about. Furthermore, you can > control the temp and the ratio of reactants precisely We do that with our pilot plant and mini-scale reactors. But they only go to 450-500 oC. I don't know what's goin on in the reactor prior to the heater zone. It might be that we *can't* pre-heat. But thanks, it's a good suggestion.
From: lektric.dan on 21 May 2010 22:30 On May 21, 4:59 pm, Winston <Wins...(a)bigbrother.net> wrote: > On 5/21/2010 2:25 PM, Bob Eld wrote: > > Sounds like a plasma torch.http://www.cogeneration.net/plasma_pyrolysis.htm > > --Winston That's an interesting web site. I notice the copyright date is 1999. Wonder if they've ever gotten any customers? No one I've spoken to has ever heard of them.
From: lektric.dan on 21 May 2010 22:35
On May 21, 6:34 pm, Dirk Bruere at NeoPax <dirk.bru...(a)gmail.com> wrote: > Or CO2 laser? The problem there is temperature control. It's fairly easy to dump a bunch of energy in - we could just as easily set of dynamite, but we need to *control* the energy/heat. > Whatever is used, it is going to take a lot of power. > What total mass will be heated to 1000 degC? The organic material is about 0.2 grams per cc. Carrier gas will be either nitrogen (and remember it's di-atomic), or argon. The heating zone is 1" long and 1/2" dia. I don't know what the flow rate of carrier gas will be. I think we're getting too involved in details and not looking at what technologies could actually give realistic results. |