Fuel from e - waste | Oil pyrolysis from PCBs | A better way than incineration
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- เผยแพร่เมื่อ 25 ก.ย. 2024
- A safe way to treat e waste prior to precious metals recovery is doing pyrolysis instead of incineration this way a crude oil is yielded from PCBs which could be used to recover Elemental Bromine then use the oil to fire the furnace to recover gold
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Loved the video! I have some questions I'd love to be answered:
1- What can this oil be used for? Has it direct applications? Maybe it has to be processed before having any applications?
2- Why is the bromine recovery interesting? Environmental issues? Finite resources in nature? Economic matter?
Thank you man, it really was a great video!
This oil could be fractionally distilled to obtain gasoline and diesel (As other plastics).
In the case of PCBs i do it, prior recovery process for gold (Rather than incineration), Since there are highly toxic bromine compounds in PCBs (Environmental issues) .
In large scales like tons, of course Economical matter is included. Bromine would be another source of revenue alongside the metals.
Thanks mate for your kind words!
Put a safety valve for the boiler so that if the pressure becomes too high, it will not explode and burn 80%. This boiler has one outlet. If it is blocked with slag, the pressure will rise and it will explode. Be sure to install a safety valve on the boiler.
Thanks, Mr Naqdipoor for the advice...
I will consider it in the next boiler version...
Mmmm, forbidden coffee.
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Like that👍
You have two channels? This seems to be the rather active one so i'll only be subscribed here :). Lovely vid. Btw, I think you can make the oil burn better if you let gas go thru it, but there it goes your extra risk of explosion too, that oil is a combo of gasoline and wax and maybe diesel? I don't understand the details hehe.
Thanks mate. Yes two channels but this one is active as you mentioned. The oil is a mix of heavy chains oil + gasoline+ petrol and halide molecules like bromine and iodide. I prefer not to burn the oil prior to refining . That was only a demo...
I have done a similar experiment with a rotating drum of PCB pieces, kept the temp to about 500C electrical tube furnace. I was able to keep more oil and less gas. Was not sure what to with that pure stink oil. PCB and chips were a breaze to process with wet chemistry means. Other plans are to process in carbon arc furnace afte the low temp pyrolisis. Loved your setup!!
Thanks mate!! Seems like a pretty neat setup! Tell me how it stood in that corrosive environment? Was the iron drum good for that?
I know people making money from selling bromine and refined oil to the companies. But you can use it to fire your furnace.
It would be interesting to process the PCB to metal recovery after the pyrolysis process
I will record a video on that soon.
The rotating drum is about 500mm long and 300mm in diameter about 2.5mm wall and is made of 316 stainless. I think it came from paint manufacturing. (Beer kegs are great items for this work!) One end was a bolt on front plate for loading chipped-up PCBs. I used red silcon gasget but muffler paste was also used like yours as well. It turns at about 2 rpm. Driven by a much geared-down windscreen motor, Chain driven onto exaust pipe of the drum. This help greatly in even treatment of all the PCBs. Heat is from electric elements like in a pottery furnace but built into 200 liter oil drum with fiber-fax insulation. 500C was the limit to stop too much gasification. Also showered the gas with NaOH solution to capture PVC products and I guess some bromine Cls. I like your burning of the gas, however I was interested in temp, contol so just went electric. May be hybrid would be best.
SS drum rotated on 50mm SS pipe on brass bushes. Gas sealing on the shaft was done with shaft sealing rope (from water pump shaft seal rope). I condensed the oils into a SS beer keg. I used a vacum (Vuacum Cleaner) to draw the gasess through a pipe filled with activated carbon, No smell from this gas at all, but that oil stings bad!! Bromine recovery sounds interesting, never thought of that. The carbon-arc furnace is still in the build. Using 20mm dia. carbon gouging rods which will arc onto the top of the pool of metal/slag. All under nitrogen gas. Electrowinning of thes cast metal recovered initally copper, and the sludge is gold & AgCl etc. Used a chloride solution. All the best with your recoveries. I enjoy you videos.
Wow my friend very helpful information from A to Z that sparked a bunches of ideas in my head which will help a lot.
Thanks for taking time, thanks for watching my videos 🙏🌹
Thats a pretty cool video. Different and very cool
Thank bunches, mate 🙏
Which is the temperature you have to get for.an optimal pyrolysisi process in this case?
You need to keep it below 500° C.
400 ° Celsius is optimum.
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Hello man, this is realy bizare, so much work to get what? As for me, burn it at high temperature... But is not so fun...
Hi mate.
To avoid getting unpleasant smells on my hands for the next two days .... However, there's a considerable amount of work to be done in a tidy manner. I plan to create a larger setup made of cast iron, once I move to a new place. I'm interested in experimenting with bromine recovery.
@@PickyPlans bromine is nasty stuff... be careful...
Thanks mate, SURE👍
@@PickyPlans Dude, anything but bromine.
most smelling and cancerogen stuff 4 pirolysis
Do you have rough numbers on fuel input and output?
The volume??
85 ml from 1.5 kg PCBs
@@PickyPlans cool! Do you know how much fuel from outside the system was burned?
I've used this gas cylinder for the last gold smelting and cupellation, now for the pyrolysis process. The full cylinder contains 11 kg of LPG I'm guessing roughly 0.5 kg of gas was burned during this process.
@@PickyPlans thank you!
Imagine what you could accomplish if you had government funding?