[Gasification] Hot charcoal for exhaust cleaning

[Ken Boak]

List,

I have now made some measurements on the exhaust gas temperature.  Ambient
today is 30.8 C

Engine rpm        Temp C   F

600                   325 / 617
615                   313 / 595
638                   295 / 563


The engine is using 1.2kg of vegetable oil fuel (cv 9.4kWh/litre) per hour
and consuming 36 kilogrammes of air per hour.

My estimations are that it will produce in 1 hour of running

2.88 kg O2
3.78 kg  CO2
1.56 kg  H2O
27.66 kg N2

I estimate that I am running with  52% excess oxygen.

The top 3 products could all be utilised in a charcoal gasifier, and the hot
nitrogen contains a significant number of btus for feedstock drying or
pre-charring.

Any ideas



Ken





----- Original Message ----- 
From: "David Fulford" <d.j.fulford at reading.ac.uk>
To: "Ken Boak" <kenboak at stirlingservice.freeserve.co.uk>;
<GASIFICATION at LISTSERV.REPP.ORG>
Sent: Monday, July 03, 2006 1:37 PM
Subject: Re: [Gasification] Hot charcoal for exhaust cleaning


> Ken
>
> I would think this would a very good idea.
>
> Are you heating your filtered waste vegetable oil before feeding it into
> the engine?
>
> What are going to do with the heat? There seems to be plenty from the
> engine itself.
>
> David Fulford
>
> At 22:55 01/07/2006 +0100, Ken Boak wrote:
> >Gents,
> >
> >I am running a 1950 Lister CS 6hp stationary diesel engine on filtered
> >waste vegetable oil and need some advice about the possibility of using a
> >hot charcoal bed for cleaning up the exhaust gases.
> >
> >Will hot charcoal reduce the unburnt hydrocarbon compounds?
> >
> >If sufficient air was entrained with the exhaust gas flow with a simple
> >mixer, could the exhaust fumes be further consumed by reduction and
> >combustion within the hot charcoal, and provide useful heat output.
> >
> >Any insight into the use of charcoal in this manner would be appreciated.
> >
> >It is likely that I will have a supply of carbonised woodchip charcoal as
> >a result of running a woodchip gasifier.
> >
> >
> >Thanks in advance,
> >
> >
> >Ken Boak
> >
> >
> >London
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>
> *** Dr David Fulford, Energy Group, Engineering Building       ***
> ***     School of Construction Management and Engineering      ***
> ***      The University of Reading, Whiteknights,              ***
> ***    Reading RG6 6AY, UK      Tel: +44-(0)118-378 8563,      ***
> *** Fax: +44-(0)118-931 3327 E-mail: D.J.Fulford at Reading.ac.uk ***
>
>
>