How to turn plastic waste into diesel fuel cheaply

[jonathan]

retort sealant

l find gasket like paper its about 1.2mm thick but l am worry about leakage

[Beyond Biodiesel]

hello good morning everyone did some one try sealant like this for retort? it says 1000 degrees FLUESEAL HIGH TEMPERATURE ADHESIVE SEALANT NOT SILICONE | eBay

Interesting link, thanks. It is probably Sodium Silicate. Sodium Silicate (water glass) will seal any two metals, or even glass to metal, and it is cheap.

[yowenn]

Waouh

Very interesting subject.
If anyone sells this kind of equipment lemme know.

[jonathan]

retort sealant

hello good morning everyone did some one try sealant like this for retort? it says 1000 degrees FLUESEAL HIGH TEMPERATURE ADHESIVE SEALANT NOT SILICONE | eBay

[Beyond Biodiesel]

I expect there is a tendency for single-ingredient catalysts to preferentially react with particular molecular lengths. But could it be said that most catalysts will cut whichever hydrocarbon molecule bumps into it?
I am after the diesel fraction. So if I want to minimise the off-gas and naptha fractions wouldn't I add the catalyst to the retort / reflux column only after all the fractions down to diesel have been distilled off? I will use WMO as feedstock so I only need to boil / distil off the fractions down to diesel, then add the catalyst to the system to cut the remaining longer oily molecules into shorter ones. This way I prevent my target fuel profile from bumping into the catalyst and being cut into naptha and off-gas.
Does that sound reasonable?

Col, it is a non-issue, because most of the diesel fuel will have evaporated off from your WMO feed stock before you reach cracking temperatures. So, just put the catalyst in the retort with your WMO, and bring up the temperature, and never bring up the temperature too fast, or you will just have boil-over. I take 2 hours to get ot cracking temperature, and it seems to work fine for my 5-gallon (20L) batch WMO retort.

I am also not at all interested in cracking WMO, because I just mix the light fractions with the heavy fractions to make a middle fraction blend that is equivalent to diesel fuel. For example 10-40 motor oil, plus 20% gasoline equals diesel fuel.

[Excalibur]

some commercial processors suggest mix of waste motor oil and plastics have you tested the same

Works for me. Use what you have. Both are hydrocarbon.

[sunilkm153]

motor oil depolymerisation

Thank you guys
A good thing is that you should get already shredded plastic from recycling companies very cheap. For example, I got 1000kg of sgredded plastic for around 50$, if all of this is turned into fuel, I get around one ton of diesel. Also the leftover small amount of charcoal can be used by pressing it into briquettes and burning it later in a stove. So you get all kinds of useful products from garbage and nothing is wasted Also waste motor oil can be depolimerized by the same process into diesel

some commercial processors suggest mix of waste motor oil and plastics have you tested the same

[Excalibur]

3D animation of plastics granulator
Don't underestimate the HP required to drive a granulator. 6HP would be a very small one.... but possibly depending on the size of your intended feedstock for the granulator? Perhaps petrol engine powered would be a good solution. All the ones I've worked on have metal detectors as a small piece of included steel does big damage. A redundant industrial granulator repowered by petrol engine could be the ticket.
Good luck. I hope you can come up with a good cheap solution.

[lowriderzzz]

That drawing is far too simple! the trick is the cutter blade design and motor speed. Been there and tried it.Busy trying to perfect it.If you make a proposal please be a little bit more specific.

Initially I'm about to try with 220V cable drill as a motor and 5cm length of blade on the one side, so in total = 10cm.

Still thinking what exact blade to choose.

What about you? What have you tried with ?

[rozier56]

Derek

That drawing is far too simple! the trick is the cutter blade design and motor speed. Been there and tried it.Busy trying to perfect it.If you make a proposal please be a little bit more specific.

[lowriderzzz]

shredding machine to cut big plastic in peaces

Here is a drawing of a simple shredding machine you can even DIY that will cut big plastic waste into smaller chunks.

It is similar to those that cut tree branches and waste garden plants.

[Mostafagaga]

so i know friend that told me you have to put bentonit calcium nothing else with wast plastic in reactor ?? is this true or its not good ?

another thing he told me also to get high temperature , i put the reactor in car oil and put them on fire and it will high temperature in the reactor ?!! is that also true or what ?!

[Mostafagaga]

can it being project ?!

Do you put the gases tube in water directly like blest company of japan , or use an condenser for cooling?!

Is this could be a business, or is it for the purpose of science

In my country we suffer from a lack of those resources, is it equivalent to the original petroleum product can we use and even be a draft?!

[mjohnson1]

Ron Hammar

I don't wish to specify what catalyst i'm using since it took me months of trial and error and many hours of research to find a catalyst that works and is cheap.


Col

I would go for a simple approach especially on a small scale unit. Unless you are a great metal fabricator I would avoid your idea of the double valves. In addition, I've never seen the double valve idea attempted before so that leads me to believe it won't work great. Start small and simple.

mortimer.dan

Real simple. If it floats on water, use it. If it doesn't, don't use it.

Make sure you're using a small flat piece because a boat made out of pvc will still float.

[imakebiodiesel]

First let me say that almost all my experience is with waste plastic so it may not apply with wmo.
Operating valves in the hot zone of a processor will be problematic. If you have 2 reflux columns you can place the valves near the condenser so that they are always cool. You can preheat the reflux using an electric band heater.
Low activity catalyst take time to activate but last a long time before they are spent. A small amount of a high activity catalyst starts to work immediately and by the time it cokes up the other catalysts will have started. Clays have a wide range of pore sizes and so will crack a range of molecule lengths. Zeolites including synthetic ones (FCC) have a single fixed pore size which will crack a very narrow range of molecules. In fact they are designed to do exactly that.

A warning about using naphtha as gasoline. As a test last year I ran my petrol powered 2 stroke brush cutter on naphtha+two stroke oil. The mitsubushi engine ran reasonably well aside from a small loss of power and slightly uneven idling. There was a slight knocking on deceleration but not severe, or so I thought. The motor seemed to run a bit hotter.
After about 100 hours use the motor refused to start and I stripped it down to have a look.
The engine had begun to seize and there was severe damage done to the piston, 2 stroke engines do not have valves but the hot running had damaged the edges of the ports. In a 4 stroke engine the damage to the valves would have been more severe and caused trouble sooner. Naphtha is not a replacement for gasoline, it is very low octane and will cause knocking and overheating which will damage your engine. At most, a 25% blend of naphtha in gasoline might be acceptable but dont try it in an expensive new vehicle.