How to turn plastic waste into diesel fuel cheaply

[Asad Farooqui]

Asad, you are right. Oxidation might be a problem, because as the fuel flows out the condenser, it is yellow, but it turns dark brown over time

Hello to Jetijs & the community.
I would like to recommed everyone in the forum to go through the book
Feedstock Recycling and Pyrolysis of Waste Plastics

someone earler recommended this book on this forum I went through it & it's worth reading . Wealth of info .
CHAPTER-15 of the book is the essence of the book .
Overview of Commercial Pyrolysis
Processes for Waste Plastics
JOHN SCHEIRS
ExcelPlas Polymer Technology, PO Box 2080, Edithvale, VIC 3196, Australia

5.6 STORAGE STABILITY OF PLASTIC-DERIVED DIESEL FUEL
As diesel ages a fine sediment and gum forms in the fuel brought about by the reaction
of diesel components with oxygen from the air. The fine sediment and gum will block fuel filters, leading to fuel starvation and engine failure. Frequent filter changes are then required to keep the engine operating. The gums and sediments do not burn very efficiently in the engine and can lead to carbon and soot deposits in injectors and other combustion surfaces.

Diesel fuel made from the thermal cracking of plastics is more susceptible to oxidation and polymerization than refinery-made diesel fuels. This is because plastic-derived diesel fuels generally have terminal unsaturation (i.e. double bonds) at the ends of the diesel chains as a result of the β-scission chain cleavage. Over time free radicals that form in the plastic-derived diesel fuels during storage cause the diesel chains with double bonds (α-olefins) to polymerize resulting in a sludgy sediment also known as ‘gum’.
Factors which decrease storage life of diesel:
• fuel composition, especially the presence of olefins and styrene monomer in the plastic-
derived fuel;
• exposure to high temperatures;
The ageing process can be accelerated by the following conditions:
• contact with zinc, copper or metal alloys containing them. These metals will quickly react with diesel fuel to form unstable compounds;
• exposure to dust and dirt containing trace elements, that can destabilize the fuel (such as copper and zinc).
The expected life of a diesel fuel is indicated by the oxidation stability test (ASTM D-2276). The test measures how much gum and sediment will be deposited after conditioning the fuel at 120◦C in the presence of oxygen for 16 h. It roughly corresponds to a years storage at 25◦C. A result of less than 20 mg/L of sediment and gum after the test is considered acceptable for normal diesel.
In order to improve the stability of synthetic diesels and biodiesels it is necessary to add free-radical trapping additives known as antioxidants (such as DTBHQ, IONOX-220, Vulkanox ZKF, Vulkanox BKF, and Baynox). Butylated hydroxy toluene (BHT) in particular prevents oxidation and radical polymerization reactions that can lead to diesel fuel ageing.
The nominal antioxidant concentration required to give diesel fuel an extended storage stability and suppress polymerization, is 1000 ppm (i.e. 1000 mg/kg).
HSD Stabilizer (Diesel Stabilizer) additive is a multicomponent, oil soluble formulation, specially designed to maintain the total sediments level in diesel fuel within the specified limits, as per ISO 1460:1995. The additive will ensure that the diesel does not deteriorate on storage and the fuel system is protected from deposit formation and corrosion. The additive consists of three major components, namely:Antioxidant. Fuel oils are subject to deterioration due to oxidation and this occurs both during storage and in service. Oxidation gives rise to formation of gums and sludge.
Olefinic compounds produced by cracking are more susceptible to oxidation. Gum is the product of a series of oxidation and polymerization reactions. Antioxidants function by combining with peroxide free radicals and by decomposing hydroperoxides into stable substances. The antioxidants used in the additive are a combination of sterically hindered phenol-type antioxidants.
Detergent. The detergent and dispersant, keeps oil insoluble combustion products in
suspension and also prevents resinous-like oxidation products from agglomerating into COMMERCIAL PYROLYSIS PROCESSES 403
solid particles. Thus they prevent formation of deposits on metal surfaces, oil thickening and sludge deposition. The component used is ethoxylated products of alkyl phenols.
Metal deactivator. Metal deactivator prevents precipitation of metal ion oxidation reactions and precipitation of insoluble metal compounds. Metal deactivator in combination with other antioxidants, shows strong synergistic effects. Oxygen and moisture present,
diffuse through oil film and cause corrosion. Amine derivative, used in the additive has good water-displacing properties. They impede sludge formulation, disperse sediments and reduce corrosion in various fuel systems.

I would like to hear community experiences about the above article.
CARBOGGER says fuel without any additive even after one years storage was still running the engines well ...

[Jetijs]

Hi Asad
I don't consider this a big problem, we will use those additives and everything will be ok. My friend gave me a sample bottle of diesel made from polyethylene, it was standing on the shelf for a year now, mostly closed of course. I have not seen any changes with it. Maybe some very faint sediments. It seems that the oxydation problem only occurs if polypropylene is used, form that material the fuel comes out dark and gets darker after a while.



Those are the sample bottles I mentioned. They are about a year old. The liquid fuel looks now still exactly the same.

[dutchdivco]

Yeah, thats what I was talkin' bout

"The ageing process can be accelerated by the following conditions:
• contact with zinc, copper or metal alloys containing them. These metals will quickly react with diesel fuel to form unstable compounds;"

I knew I had seen something about that, somewhere.
So, if your going to make and store this fuel, for longterm, sounds like a non metal storage container, with no oxygen, and a cool temp would be best.

I was already thinking about waterbed mattresses, as 'fuel bladders', would just have to 'burp' them, to remove the air.Jim

[otpadnoulje]

Dear Jetijs!


Please answer:
What is diameter of condenser tubes?
What is lenght of all condenser
tubes?
What is cooling temperature of diesel and of gasoline?
What is ratio of thermostat, "switch of time" : "switch on time" at 400 c temperature?
Thanks

[CRMoore]

ERM unmasked...

I posted this on the ERM Alert thread but thought that might be missed by some so:

Following up on the ERM sister website Sasher by goggling Bonita Sasher (name listed with other bank info!) I found a multi-page court document listing many questionable businesses that are involved in bankruptcy hearing. Apparently Bill who has emailed me from ERM is William Sasher and in so deep
that another scam won't hurt (him).

[dutchdivco]

Good job on the detective work

We need to do what we can, to see that this particular scam gets shut down, quick.Otherwise the scam cvould taint the technology, by association.Wonder how the web hoster would respond, if told the site they were hostiong was a con?Jim

[Aaron]

fraud

I give links here to complain to:
http://www.energeticforum.com/renewa...chine-com.html

Since they're using Jetijs' pictures, they can be sent a DMCA complaint -
send it to the ISP - they MUST respond - those are Jetijs' pics and he
owns the copyrights - but that is IF Jetijs wants to pursue it and if so,
that is how.

Right click on the other pics, see the names and search those in google
to see where else they are - can find the other owners if any.

[ashtweth]

Aaron should we make a document EXCLUSIVELY for Jet as the official open source guide to help get remuneration for JET , you have a talent at collecting info man, just throwing ideas around ignore it if its off. down load for free help Jet as optional maybe?

if you think its a good idea ill make a guide and Jet can get ALL proceeds or am open to ideas and input, dont wanna see our brother get smoked

[Jetijs]

Dear Jetijs!


Please answer:
What is diameter of condenser tubes?
What is lenght of all condenser
tubes?
What is cooling temperature of diesel and of gasoline?
What is ratio of thermostat, "switch of time" : "switch on time" at 400 c temperature?
Thanks

Hi.
Please read through all this thread before you ask questions. Most of them are already answered. As for the thermostat, it has a temperature sensor that tells it when to sqitch the coils ON and OFF. There is no magic dutycycle because the temperature depends on many things.

[Jetijs]

Also, today my friend visited me and we filtered some fuel using the centrifugal filter. It works really great and fast. He has already driven around 1000km using this homemade diesel without any problems at all. Today we also tried the filtered gasoline on a genset - works like charm, absolutely no difference from standard gasoline, except for the fuel color
I will post some pictures of what is left in the filter after the filtering later.

[Jetijs]

[Asad Farooqui]

Centrifuge Filter

Jetijs ;
You are right cenrifuge filter .
Even after ONE Year's storage of this type of fuel . Just centrifuging AGAIN will remove all the unnecessary Gums & moisture buildup.

Is it possible to build our own centrifuge filter by casting the required BOWL & than attaching it with a 12000 RPM motor system ???
OR is it possible to purchase just the Bowls & built our own Filter system ???:

[Jetijs]

Hi Asad
We got our centrifuge from here:
Extreme Raw Power Centrifuge - WVO Centrifuges

have a look at their other products, they also have the bowls separetelly. Those prices are considered cheap, because we searched long and every other offer was way more expensive. This one rotates at up to 6000RPM, it has a frequency regulator that lets you adjust the motor speed as desired. Works really well. I had a look at that bowl and it should be possible to turn that part on a lathe rather cheap. It is made of aluminum. But it should be centered and ballanced rather good. This unit is very very quiet even at max speed, I was amazed by that

[keith20mm]

Hi Asad
We got our centrifuge from here:
Extreme Raw Power Centrifuge - WVO Centrifuges

have a look at their other products, they also have the bowls separetelly. Those prices are considered cheap, because we searched long and every other offer was way more expensive. This one rotates at up to 6000RPM, it has a frequency regulator that lets you adjust the motor speed as desired. Works really well. I had a look at that bowl and it should be possible to turn that part on a lathe rather cheap. It is made of aluminum. But it should be centered and ballanced rather good. This unit is very very quiet even at max speed, I was amazed by that

There is another centrifuge design that I'm considering, and, am not associated in any way with this provider: Simple Centrifuge ...putting a centrifuge in every garage!

I'm particularly interested in a c/f that is self-cleaning, or, at least, partially, or easily cleaned, with exchangeable centers, so that I can switch to a fresh drum, while cleaning the previously loaded drum.

[Jetijs]

Newest concept that my friend introduced me to.



Such a concept is used in some japanese units. It extrudes the plastic into a tube that is placed on an angle to go a bit upwards. The molten plastic is pushed through that tube and the tube is heated at the same time to some 500 degree. This makes the plastic boil and evaporate leaving only spolids and carbon, maybe some ashes. These are then pushed further till they drop in a collector bin. The gasses travel through the condenser and turn into liquid. The gasses that don't turn into liquid can be used to heat the angled tube.