Gilmore style?

Small Engines Charcoal Gasification
#121

Hi Gary H.
Yes the palm oil project is funded by HM and is still an ongoing thing.
My project is about education by means of setting up and running a working project, used it as a teaching tool.
University’s providing research support and students for educational programs.
Having room for improvement in the project, making it possible to up-scale and or duplicate…
All to the benefit from the people at the bottom of the pyramide…

And yes, they already started copying the charcoaling process.

#122

Did run tests today with Rice Husks Charcoal…

Engine did run, coughed and puffed…
so i emptied the gasifier and look what i found… :wink:

The Rice husk charcoal has a density <150gr/liter
Its also very slagging as i noticed…
The air-gas, chunneled itself trough the rice husk charcoal, creating free pathways…
The last picture i brushed of the outside…

So i guess so far goes the testing with rice husk charcoal :wink:


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#123

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#124

Hi Steve,
Thanks for the confidence, looking in to it, how to follow-adapt your advice.
I will try to combine your input with the gasifier i am using now, i might have an idea that i can try. ( i think already existing of course )

Yes, i think your idea from the Brandt gasifier will be the track to follow

i will draw a sketch to make more clear how i see the possible solution and ask your folow ups advices.

regards

Koen

#125

Ok, having new filter setup for testing…

Tomorow, painting and mounting everything on a rack

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#126

KoenVL, Nice looking filter. I especially like those four adapters from the large pvc pipe to the smaller pipe. Were you able to purchase those, or did you make them yourself? I made mine concentric, with the little tube right in the center of the larger tube. I drilled them with a hole saw, and screwed the threaded pipe into the center of the hole after heating it with a propane torch. I also used gobs of PVC cement. What filter media are you using in the first pipe? (Steel wool?) Are you using rice husks as a filter media in the second pipe? Any foam or wool cloth in there? This does look sort of like a shorter, fatter version of what “FlashUSA001” shows in his YouTube video we discussed. Did you make the “slip fit” press together fittings so the filter media can be dumped out? (I wrapped some duct tape around the larger pipe, then pushed the adapters onto it, but it is really hard to get them apart.) It appears that you also get some filtering through the charcoal in the long reactor tube, and then the smaller filter on the top of that tube. Does that filter on top of the reactor have steel wool in it? Also, thanks for all the postings and photos as you weave your way to the end product. Ray

#127

Hi Ray,

This is all off shelf material, no modifying needed.
Top is slip fitted, bottom glued with the vertical 4" pipes also slip fitted.
Main pipe 4"
secondary 1,5",
Drain plug bottom left on the picture

Filter sequence: 1.charcoal in the reactor, 2.grate on outlet gasifier, 3. stainless steel wool sponges, 4. rice husks, 5.Optional diesel soaked charcoal, 6. Iron ore (iron oxide stones) 7.in the see trough can, a airfilter from motorbike.

I first try to extract the dust particles and in the last stage neutralizing the acids with the iron oxide.

I might replace this cheap version with the top ends removable with treated caps 4"

Reminding this video on the internet my remarks to it:
if this is an bilg blower he’s using with dc voltage, then that is an accident waiting to happen.
Always keep the airspeed higher then the flame speed, in his case the blow back occured from hydrogen.
He is doing a great job, but he’s forgetting to reed a few books before doing it. :wink:
His cooling rack is in the wrong order ( the 2 pipe section should be the hot upwards, the on pipe cool downwards)
He’s going to experience a fast clogging of his filters due to the small acting surface, ( it appear that he is taking all the shit out with the filters…)
The amount of tar should be enormous seen the low temp he is having…

#128

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#129

Hi Steve,

No the remarks i made above was concerning a video that Ray pointed out to me at an earlier post and a mentioning about “FlashUSA001” again in his last comment.
So the remarks above, have been my remarks about the video from “FlashUSA001” on youtube. My remarks, my responsibility and if proven wrong; mea culpa

Comments given and taken making me learn. ( most of the time i learn about the comment giver ) Keeping quit also disables the listening capacity’s, ergo the learning ability.

If a teacher wants to be sure the students are really learning and paying attention, he should make some errors to provoke their attention :wink:
( learned that in the service )

I am in the middle of my life and in the middle of learning from DOW and teaching myself , so half way all the way…
Learning by my mistakes, in transition from being a student to be a teacher, but always straight forward on the path of improvement ( mostly my own improvement “chuckle” )

Any how… main purpose: showing the world that DOW is an excellent idea and change the disbelievers minds.
Therefore i use marketing words as “Green Waste Charcoal” , “Carbon dioxide converter”, “Using Carbon dioxide as fuel”
One member of the “R&D team Renewable Energy Thailand” is besides a Nr1 Web marketing specialist in Australia, also a engineer Chemical and applied science.
I would be honored if you and some other people from DOW would lend their names also to the list of “R&D team Renewable Energy Thailand”.
You’ll have the valued knowledge and deserve the credits…

Nice anekdote:
This week i had a debate with some professor. He refused to believe that i could convert Carbon dioxide into energy. He “proved” his point with showing an article about gasification… I that article, which he pointed out, was clearly stated that C + Co2 + Heat = 2Co, also Co2 + H2 + Catalyst = CH4 + H2o…

What do you think he did not understand ?

Back to topic; R&D gasifiers

1.About the Brandt idea of doing things… first with words, later with drawings, followed by the deed… ( always my favorite part )
imagine my gasifier with an Brandt style outer shell , space between outer shell and my gasifier filled with rice husks. so instead of spraying water on the outside of my gasifier, its rice husks leaning on the hot metal from my gasifier. The rice husk will be charred by the heat of the hot metal ( indirect )
The fumes from the rice husks will then be sucked into the air nozzle from the gasifier. ( also can be oil soaked, imagine what possibility’s )

  1. imagine exhaust gasses passing also through the feedstock from a gasifier, using the heat from the exhaust to rise the temperature, leaving a part of the pollution from the flue gasses in the feedstock to be converted in the gasifier. ( soot is a good fuel )

Give me your idea’s, it will keep your mind of woodstock ( joke )

I will draw a sketch for those who wants to participate in the R&D with their appriciated comments, give me a few hours dough…

Regards

Koen

#130

Very nice sketching! to me that is real art!

I hope you go somewhere with this! Good luck!

#131

Neal,

These are not my sketches… sorry… but thanks for the compliment :wink:
These are 2 models of the Brandt type gasifier.
My sketches will be uploaded tomorrow but less artistic… :stuck_out_tongue:

The goal is to have a duplicatable gasifier that works with standard materials and does the job

The way is: reading reading, learning , debating , trying, doing, more learning,… learning from every single gasifier build ever…

And i am enjoying every minute of it.

Today i went back shopping, modified the filter housing so i can unscrew the tops of the filters with an acces of 4 inch…, building together tomorow, then posting pictures…

#132

The latest version of the filter set, hope this is my final design :wink:
Painting and taking pictures, prior to testing

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#133

Ok, here the sketch from the idea ( brandt system )

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#134

Is that a lighting port on the middle right side above the ash cleanout?

#135

Hi Brian,
No thats just the lightning port.
Ash clean out is still by removing bottom nozzle.
Lets say that this sketch is a first idea drawing to debate about pro and con

The idea is to use the rice husks as fuel.
Technicaly its not a big problem to solve, the ash removal i mean.

Using a simple fire system from Gary Gilmore, adding the knowledge from Steve Unruh and all our experiances, we might find some fun here…

#136

Hi Koen, What I see happening with the way you have it designed is the charcoal will burn up and the rice hulls will mostly all be left behind. The nozzle is too high in the generator. It needs to be down where the rice hulls are so it can oxidize them to CO2. It is then the job of the charcoal to reduce that into carbon monoxide. The only way this may work is if the radiant heat at the nozzle was enough to pyrolyse the rice husks and that is kind of iffy since charcoal insulates so well. If you do make one, I’d suggest you build it so the nozzle can be moved down.
My two pence worth.
Gary in Pa

#137

Hi Gary,

I does suppose to use only the radiant heat around the “hot” zone from the Charcoal gasifier.
The gasifier will radiate aprox 300-400°C
The idea is to use the fumes to be sucked into the nozzle. ashes and charred husks cleaned out later
Since the gasses from that rice husks will be produced without combustion or extra heat needed, that gas will be rich.
No Co2 and non or little nitrogen.
So theoretically worth to try. ( but i will try it anyway in any form i can think of :stuck_out_tongue: )

The soul hesitation i have is dough, for the smaller engines it is my opinion that the level of hydrogen should as high as possible.
The higher Hydrogen levels makes the gas more adaptable for higher RPM then the mixture with Methane. (Less power loss, Hydrogen has same mix ratio as Carbon monoxide, methane has 4 times more air needed.)
So i did not figure out what would be the content of the gas with this idea, but working on that.

What would happen if try the same with other materials ? as wood dust for example ?

My luck is that i started with a small bore reactor ( 5" ) and see so many things happening.

Of course i can adjust the length/hight of the nozzle at any convenient position.
but for the first we are at the design - level where we theoretical discuss the possibility’s.
After that we see what we have available and what our options are.

Look at it this way, i started with building a" simple fire" design because it works
I still have that design and can ad so many other features because your design allows it. and it still will work…
That is the great thing about your starters idea Gary. You created a Lego-block, i am building something with it…

Also i am looking to the future of gasification…
Controlling the exhaust - emissions is the main issue.
If my research can contribute positively to the work already done by you and all the others working with and driving with Charcoal gas…
That is my purpose… future

Developing the future technology is using the knowledge from our ancestors…

#138

Hi Koen
Just a few ideas if you google fluid bed gasifiers.
All of these should work for rice husk / saw dust applications, it’s just as Wayne says the devil will be in the details, how to get the feed stock in with little or no air coming in to the gasification chamber! It will have to be a continuous feed system versus a batch system like a charcoal or WK gasifier.
Your thoughts ?
Thanks Patrick

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#139

This may be a good idea as well.

#140

Read this one.
http://www.scielo.org.ar/pdf/laar/v37n4/v37n4a11.pdf