How to turn plastic waste into diesel fuel cheaply

[connect9707]

oil set up pictures !

maybe needed to register at the forum to view that.

Oil To Diesel Photo Gallery - Version 1.0

I can see more detailed drawings are not ?

[islander]

Pressure to pass over the water problem

It seems to me the lower pressure you have in the reactor, the more violent the event will be. If you find a way to pressurize the vessel, when the plastic will melt and let water go down meet the hot vessel, the pressure release will be proportionally much smaller with a little spilling. So keep the vessel temperature at a plastic melting, but under cracking/boiling temp, so when everything is melted you get all the water at a vapour state and you only have to open an upper drain valve to get rid of it, then can start normal plastic cracking at atmospheric pressure.

For pressure making/air evacuating process maybe only need to put a little amount of free water at the bottom of vessel, a valve closing reflux/condenser output, and an upper pressure release system not to let the pressure going too high/release excess water/vapour.

For jetijs : I actually have on hand a small amount of

1) catalytic cracking zeolite especially made for waste oil cracking
2) catalytic zeolite-like granules especially made for "reforming may be" it's said to be used to treat diesel to avoid sludge to happen, a kind of non chemical stabilizer.

I could send you a little amount for you to use with your experimental system if you want !

For jetijs : have you already try cat granules as catalyser ? It's said to be zeolite.

[islander]

websites on the topic

Converting Used Motor Oil to Diesel - Bob Is The Oil Guy

unfortunately this website especially dedicated on the topic is now dead :

Oil to Diesel – Yes it is Reality!

[fibuslitero]

Hi:
Maybe in this web pages we can find some help.

Refining Online, Crude Oil Refining, Refining, Refining Oil, Oil Refining, Crude, Oil, Crude Oil, Petroleum, Petroleum Refining, Catalyst, Petrochemical, Gasoline, Cracking, World
Welcome To Zeolyst International Website

ZSM−5 Catalyst seems to be very important in "our" industry

[Jetijs]

Islander, thank you for the offer. I would like to try out your catalysts. Any idea of how much shipping to Latvia would cost? I am still in process of trying all kinds of catalysts and temperature settings. We have already done more than 30 runs of our small test device and gathered very much important data to make conclusions. We will complete our tests and analyze the data and then share it here.

Today I had another mishap. My friend got me a big 16kg roll of packing film, not used, densly rolled. So I cut out a segment and rolled it like newspaper so that all layers are parallel and vertical. Then I inserted this rolled cylinder of plastic film layers into the reactor leaving about 3cm of space till the lid. Again I had a bad feeling about this. But since this feed was completely dry, I went on. I rised thye temperature very very slowly till it got to around 270 degree celsius. There was hardly any gas coming off so this made me suspicious. So I purned off the power and just then the reactor lid seal was breached and a fountain of steam/gas came out of it making a big white cloud. After that it pushed some gas with high pressure into the bubbler and after that it sucked the bubbler dry. When the temperature went down, I opened the system and again I saw the familiar sight. Here are the pictures:







So the bottom line is that this is not caused by water and steam, at least in this setup, because the feedstock was dry. It is just because I put too much in the reactor. Usually in granule form I can put in around 700 grams of plastic. This time I squeezed around 1300 grams in. And in the previous disaster it was about the same. With 700 grams of feedstock, I never had any problems. But if you put too much inside, the plastic will block all the system and turn it into an extruder. This is because plastic film when it melts, it becomes like thick paste at first, but already then, small bubbles of cracking gas starts to form inside the plastic, this foams up the plastic making it more like a sponge and since the plastic is still not liquid enough, those gas bubbles have a hard time escaping and the volume becomes greater and greater. It has to go somewhere So to avoid this, fill your reactors only up to 60-70% of volume if you use very densly packed plastic films. If you use granules, you can pack it full, because granules will still have lots of space between them for the expansion. So be careful!

[islander]

to jetijs

shipping cost probably around 20 to 30 euros depending to the shipping options and the quantity shipped.

As my samples are not very large, I could give you only a small batch of both, but I think enough to get reasults. Maybe you will need to adapt a little your testing device for the little amount of catalyst, possibly.

send a MP to me here, would be out of spammer sight

I also try to get liquid stabilizer, but the shipment is the problem. I'll probably go in China and take some back myself, Or I would buy a large qty, boat shipping.

[Asad Farooqui]

Mix WMO with films

Today I had another mishap. My friend got me a big 16kg roll of packing film, not used, densly rolled.

Hello Jetijs ;
I hope U would be fine & keep on the good work .
I would like to suggest that if you realy want to load sheets/films in your reactor than try the following .

First put 25% of WMO and cook it to about 180-200celcius, than start pouring the plastic sheets-shredded .
The WMO will melt the plastic instantly resulting the air/water vapors to evaporate & plastic sheets will also be squeezed, taking less space in the reactor .
Than raise your temperature upto the cracking stage .


WMO will also REDUCE the wax of PE & you will be getting a mixture of liquid & wax . Both are fuels , liquid having more gasoline & wax containing more of the heavier fractions.
My guess is that if U increase the WMO proportion + PE to about 1:1.
Most of the wax will disappear .
Secondly the RON number Or the Octane value of the gasoline fraction will improve , giving engine good pickup & power .

[congnghiah4]

Here you go, nothing complex. Any other means of keeping the first condenser at 100 degrees can be used. The second condenser may be cooled if needed.

the flowsheet you, we loaded material don't continuous .can not increase the capacity production .
quality is not stable even during production. P2O them use reator turn or can you see flowsheet ‪video‬‏ - YouTube

[extraloud]

inert gas purge

everyone is purging their reactor with nitrogen or CO2 before heating ? - i am assuming. and if you are not - if you have oxygen in there, at the high temperatures the O2 in the system with react and form h20 and co2.

this may not be a huge concern - as the little o2 left in from the beginning will react and then it is gone - but it is worth thinking about for larger scales and continuous operation

some systems have a constant flow a inert going into the reactor and then a vacuum pulling off the back. if you use a vacuum the be sure everything is sealed good or you will be pulling O2 into the system.

[islander]

To congnghiah4

Hi !
I don't understand at all your message, but your video is extremely interesting .
It seems it gives us many suspended questions about how to process the stuff well.

I take note they use the catalytic converter to work on gaz only, not liquid.

I wonder if our cracking do occur inside the liquid, or only when it became gazeous ?

Many thanks

[imakebiodiesel]

Islander, I think you have hit upon an important point, does cracking happen within the liquid or gaseous phase. If the answer is gaseous, then mixing catalyst with the feed stock at the time of loading is a waste of catalyst. In that case it must be placed immediately above the feedstock where it is still very hot and the gas can flow over or through it.

[jonbonz]

Dominican Republic

Foudn the forum today.
Ok I read the entire thread.
Did anyone ever try the vegetable oil as a feed stock?
I read where there were intentions to try. If it is a reliable feed stock then this would be a superior method for producing biodiesel as no methanol/lye to purchase. No glycerin to dispose of and so forth.
I am from the US but lived in the Dominican Republic with the constant power black outs and I have seen the island run out of gasoline. I saw the island be with on 12 hours of running out of diesel and 24 hours of running out of fuel for the power grid. I have seen shortages of propane. If there was a means of household control of a diesel supply to run generators and fuel for a diesel auto then I could ensure the quality of life for my in-laws.
I live in the US now and I would be interested in this process for my own amusement at this point and would build my own system to perfect before I sent it down the way. I think I could use an old 50 gallon gas water heater as my chamber. I could use a rocket stove as a heat source with the discharge gas as a fuel source once it is going. Refractory cement mixed with perlite would make a good insulator. I have a 50 liter per hour hand cranked cream separator I have never used down at my in-laws I could possible use as a centrifuge.
It is set up pull off skim milk and cream in two separate outputs so it may be possible to do continuous flow.
Poly ethylene bags are in great supply there, Waste Motor Oil and WVO oil in great supply. Nine dollars a day is considered good wages. Six dollars a gallon diesel prices are the current norm. It would not take much for a 30 gallon per batch or more to be cost effective for either a direct business or a means of running a genset for a small Calmodo (C Store/ Bar combination)

[makhanprimero]

Hello, Jetijs!

I am new here, I joined just a few minutes ago. Like all the others in this thread, I wish to thank you for your detailed information on this valuable technology. Earlier I looked up the BLEST systems and I believe that even the smallest/lowest priced unit is not affordable in countries like mine, the Philippines.

In my country, we are reaching crisis levels in our energy/electricity supply but we have a huge biomass resource which I believe could be our best resource as heat source for the pyrolysis of plastics and other wastes and their conversion to diesel, gasoline, etc. One of our most abundant biomass resource is rice husk and a Filipino inventor, Alexis T. Belonio, has developed various gasification models applicable to a wide range of uses, from household cooking to industrial uses.

Here are the sources posted in Improved Biomass Cooking Stoves | This site exists to help people develop better stoves for cooking with biomass fuels in developing regions.
A CONTINUOUS-FLOW RICE HUSK GASIFIER FOR THERMAL APPLICATIONS | Improved Biomass Cooking Stoves
http://www.bioenergylists.org/files/...nio-2010_0.pdf

His paper reports that the flame temperature of his models ranges from 400 to 800 degrees Celsius. The higher-scale models should be sufficient to pyrolize plastic wastes, don't you think? So instead of electric heater coils, isn't it possible to introduce the rice husk gasifier flames into the plastic pyrolysis reactor? The beauty of this system is that we help solve the disposal problem of rice mills, generate new livelihood opportunities for the farmers, and produce much cheaper biofuels from plastics compared to your costs using electricity.

Please comment if my thinking is right. I intend to advocate a rice husk gasifier/plastic pyrolysis in the rice granaries of my country.

Thank you.

[islander]

For jonbonz

Cream separator would't work for oil, you can read about on Simple Centrifuge ...putting a centrifuge in every garage! they say every centrifuge application has a specific use with a different construction, and I have learn they are truly fair guys.

[Asad Farooqui]

gasification

Hello, Jetijs!
In my country, we are reaching crisis levels in our energy/electricity supply One of our most abundant biomass resource is rice husk and a Filipino inventor, Alexis T. Belonio, has developed various gasification models applicable to a wide range of uses, from household cooking to industrial uses.
Thank you.

Hello ;
I have gone through biomass pyrolysis/Gasification units .
Yes you can use Bio-gas by heating the waste plastic pyrolysis unit. You have to modify your plant accordingly . The Bio-gas temerature at the time of dischacharge is about 600 celcius . If you put that direct to your WTL unit you will be getting more gas than liquid fuel . The best thing will be to feed Bio-gas in the Gas-burners & heat the reactor .

Hello Imakebiodiesel ;
The Thermofuel video is a similar process what WE,the forum community is doing . They are feeding the Vapors to a catalyst-chamber around 400 celcius so the vapors crack into C5-25 range liquid fraction only .

Well feeding clays as catalyst with feedstock is another method.
Here one can crack the PE at temperatures as low as 300 celcius & in almost half the time ,rather than 450-500 celcius for thermal cracking. Liquid fuel yield also goes upto 70% from 50% .