[Gasification] gasifier type updarft use rice husk

[Luke Gardner]

Mark and ALL,
I make some top notch smoked salmon, and know what it takes to make people say “wow! that is really good”.  the funny thing is that what it takes to properly smoke salmon is pretty much exactly what a guy tries to avoid with the gasifier a cold tar laiden smoke.  Is this harmful to your health????  it doesn’t matter as it tastes good enough “to die for”, it just makes me wonder, have our genetics been time altered (somewhat like the signaling network of the trees you talk of) to be predisposed to enjoy the taste of something cooked over a “cold/smoky fire”?
Luke

From: Mark Ludlow 
Sent: Saturday, December 17, 2011 7:25 PM
To: 'Discussion of biomass pyrolysis and gasification' 
Subject: Re: [Gasification] gasifier type updarft use rice husk

Jeff and...

There's a lot of different opinions on the value/harm of the "tars" in the soil. My instinct says "no-no!" but some people drink the distillate and think that it is God's blessing!

If we observe natural phenomena, for instance forest burns (which, presumably, have multiple regimens of combustion, from hardly-at-all to pure ash) we see that there is usually a strong recovery after a burn, but the ecosystems are usually not replaced, intact, but forced to begin their long, progressive cycle once again.

A study of 19th-century charcoal kilns in the Eastern U.S., show that there is a lasting effect on the sites on which they were located. On the other hand, many suggest that the aromatic compounds produced during pyrolytic combustion are valuable components of the signaling network that tells seeds and the soil ecosystem that the sky has opened and that the system has an altered competitive structure.

Maybe a little is good; and a lot is bad. But despite the evidence that many of the polyaromatic hydrocarbons remaining in the char produced for biochar applications is carcinogenic, some certifying bodies have declared it "Organic" and suitable for unrestricted use in agricultural applications.

Who knows?

Best, Mark

 

-----Original Message-----
From: gasification-bounces at lists.bioenergylists.org [mailto:gasification-bounces at lists.bioenergylists.org] On Behalf Of Jeff Davis
Sent: Saturday, December 17, 2011 6:18 PM
To: Discussion of biomass pyrolysis and gasification
Subject: Re: [Gasification] gasifier type updarft use rice husk

 

Dear Tom,

 

On Sat, 2011-12-17 at 09:43 -0500, Thomas Reed wrote:

>  including an open PYROMID, and any junk biomass, we all have easy 

> access to as much charcoal as we could ever need, for the first time 

> in history.

 

This summer I tried numerous switchgrass bale PYROMID's with no practical charcoal production but it did make some impressive and scary fires. Personally I would be reluctant to promote this just because of the danger of starting forest fires and what not. 

 

 

> So we really have no excuse for cleaning up TLUD gas if we wish to.  

 

As long as we don't place the tar laden charcoal in the soil but use it as a fuel. In other words clean charcoal added into the soil is much better that adding charcoal that was used to filter toxic waste. 

 

 

 

> Compare to natural gas at 1000 Btu/ scf. 

 

Locally the troops have landed and marcellus shale gas is under production. It's been stated that this type of well will last for 30 to

50 years and beneath that even more gas. Already, locally, the price of natural gas has dropped.

 

 

Best regards,

 

 

Jeff

 

 

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