[Gasification] Need help from gasifier experts_Clinker formation

[Pannirselvam P.V]

************************************************
P.V.PANNIRSELVAM
ASSOCIATE . PROF.
Research Group ,GPEC, Coordinator
Computer aided  Cost engineering

DEQ – Departamento de Engenharia Química
CT – Centro de Tecnologia / UFRN, Lagoa Nova – Natal/RN
Campus Universitário. CEP: 59.072-970
North East,Brazil
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 Dear  Prasad

      The tar and clinker problems you wish  to solve, have been also
already  brought here  by Jason , who  also is doing practical action,
 making several innovations related  to his system design .His GEK system
 design is an open  source, a good  resource , very well  made . can surely
solve  some opf the problem.

    The problem  with IIsc desig design  has some gas recirculation un like
many other incluing  GEK , thus more flexible. You need to increase the air
inlet temperatures  such one well  done  in GEK , steam quenching  can hlep
 solve  your problems .Some opeartional  resarch , optimization   as
recently  done by the new generation  of gasifers  such as  Two stage
gasification modifications   by dutch univeristy   Mechanical engineering
departments , can be  also  used  in solving tar  lignin condensation of
your systems

     Increasing temperatures  is one way , where lignin need to be cracked.
Free radical   help fragmented   condensed condensation  and tar problems ,
depending on the temperature.
      Tom Reed is in favour of several chemical uses  for this tar as
product , as this can be very  easy seperated

There are many ways  to solve ,wish your team a   good undestanding of
 problems , process, controls and optimization  problemas and good solutions

Thanking you


Yours   truly

On Tue, Jul 24, 2012 at 3:42 AM, Prasad Mande
<prasad.mande at agnienergy.com>wrote:

> Dear gasifier experts,****
>
> I was working on the biomass pellet trial on one of the wood chip gasifier
> (Gasifier design is IISc India design- Open top downndraft). I found that
> gasifier was able to make good quality gas when switched from wood chips to
> these biomass pellets. However, two major problems I came across are TAR
> and Clinkers. Clinkers are primarily due to the temperature in the reactor
> bed which is exceeding probably ash fusion temperatures for the biomass
> pellets I used. I want to know from you the ways to control this reactor
> bed temperature inside gasifier, such that I can avoid clinker formation
> and also reduce the temperature****
>
> ** **
>
> Waiting for the guidance from experts.  ****
>
> ** **
>
> *From:* gasification-bounces at lists.bioenergylists.org [mailto:
> gasification-bounces at lists.bioenergylists.org] *On Behalf Of *
> A.Saravanakumar
> *Sent:* Tuesday, July 24, 2012 11:00 AM
> *To:* tombreed2010 at gmail.com; gasification at lists.bioenergylists.org
> *Subject:* Re: [Gasification] Flaming pyrolysis modelling for truncated
> updraft gasifier****
>
> ** **
>
> *Dear Booster,*****
>
>  ****
>
> Warm Greetings,****
>
>
> You are my GAS GURU and inspiration to us.****
>
>  ****
>
> I pray for your early recovery from the fall.****
>
>  ****
>
> I kindly request you to see through the paper and make necessary
> corrections in this paper in the aspect of Elsevier publications.****
>
>  ****
>
> Please check the manuscript for grammatical errors and instances of badly
> worded/constructed sentences and refine the language carefully.****
>
>  ****
>
> I kindly request you to correct the paper, which I have sent for your kind
> perusal.****
>
>  ****
>
> Thanking you****
>
>  ****
>
> Yours faithfully****
>
>  ****
>
> A. Saravanakumar****
>
> ** **
>
> *On Sat, 21 Jul 2012 01:51:39 +0530  Tombreed wrote:*****
>
> *>  Dear Sara*****
>
> *The paper was not attached...*****
>
> *Tom Reed*****
>
> *Thomas B Reed*****
>
>
>
>
> body {
> background: #FFF;
> }
>
>
>
> ****
>
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