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How to turn plastic waste into diesel fuel cheaply

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  • wrtner
    replied
    I wonder what the spec is for avgas, the aviation industry's stuff. Gas turbines are very tolerant.

    Leave a comment:


  • sunilkm153
    replied
    Originally posted by Hoddamdg11 View Post
    In the hope that someone is still interested.
    Way back Jetijs was attempting to make a screw extruder to feed in molten plastic. (was Page 9 #259) without a lot of success.
    I have just come across a Netherlands website with plans for one. They started with a long auger like Jetijs but have developed it.
    see htpps://preciousplastic.com/en/machines.html
    they also have plans for a shredder.
    Both are quite sohisticated mechanically so not for the faint hearted.
    The site is mainly concerned with recycling plastic as a means oflifting underdeveloped communities out of poverty although their setup would seem to be expensive without financial help.
    regards and happy new year
    No need of screw extruder and make it 2 stage process I successfully get it completed it in single stage and also commercialize the idea successfully my plant is working with 6000 kg / day capacity with giving brown red color fuel oil with density 0.82 - 0.84 almost equivalent to diesel

    Leave a comment:


  • Hoddamdg11
    replied
    extruder and shredder

    In the hope that someone is still interested.
    Way back Jetijs was attempting to make a screw extruder to feed in molten plastic. (was Page 9 #259) without a lot of success.
    I have just come across a Netherlands website with plans for one. They started with a long auger like Jetijs but have developed it.
    see htpps://preciousplastic.com/en/machines.html
    they also have plans for a shredder.
    Both are quite sohisticated mechanically so not for the faint hearted.
    The site is mainly concerned with recycling plastic as a means oflifting underdeveloped communities out of poverty although their setup would seem to be expensive without financial help.
    regards and happy new year

    Leave a comment:


  • wrtner
    replied
    .
    .
    =====================================

    This thread is extremely long. Is there someone
    who would summarise the first 146 pages?

    =====================================
    .
    .
    Last edited by wrtner; 12-19-2017, 04:57 PM.

    Leave a comment:


  • wheels
    replied
    Originally posted by wrtner View Post
    As far as heat is concerned, what sort of temperature range are you talking about?
    If you are referring to the heat required to melt the plastic, it is all listed here in the Thread. Yes I know it is long, but the actual answer is more complex than just a simple single temperature. Ply you need to read it all to get a good understanding of what you are doing, or you could injure yourself and others.

    Leave a comment:


  • wrtner
    replied
    Originally posted by wheels View Post
    Don't get fooled on that one. There are three key points to having a fame. Fuel, Heat and Oxygen
    As far as heat is concerned, what sort of temperature range are you talking about?

    Leave a comment:


  • wheels
    replied
    Originally posted by kedigen View Post
    I've been away from the forum for a long time. But I made a 4,4m3 reactor for plastic. And we got positive results. The resulting product was very flammable.I did it by talking to you. In the use of pe, there was a paraffin problem. You said you use reflux. That's four years ago.

    https://www.youtube.com/watch?v=wgM_uCKhfz0

    this is 4.4 m3 reactor for plastic (without reflux)


    PLASTİK PİROLİZİ REKTÖR YAPIMI VE İŞLETİMİ


    I also have blackened problem. I am trying to solve this problem.
    I am now building a 6m3 new reactor. We will tire pyrolysis in this reactor. We will use this oil in the generator. For electricity generation. Tire oil is also quite blackened. I need to clean it.

    If this problem is not solved, the exhaust outlet is clogged. For this reason I was desperate.

    thanks
    Firstly to the black Tyre oil. I suspect the black is caused by ultra fine particles of carbon. This will need filtering out. The question is how. You need to get a chemical analysis on the Fuel and find out how small those particles are. Then from that, you can determine if there is a Filter fine enough that is in existence that would filter the carbon out. The only problem is that a filter made from some form of material is going to clog easily and will need to be able to be cleaned regularly. I would expect that replacing them would be come to costly.
    Another idea it to use a centrifuge type cleaner. There are many available designed for Fuel, but they are expensive. The advantage is that there is no filter required. You can get small units that you manually clean and larger units that automatically clean.

    The PE plastic, actually it was not me that said about the reflux. I think that was excalibur. PE naturally produces parraffin wax. This can be controlled slightly by time and temperature. The longer the time and the higher the temperature, the shorter the Molecular chain that is usually produced. The reflux idea works by allowing the longer chains to pass through multiple times till they break down short enough to then pass right through.
    The issue with Parraffin wax is that it is not a long chain molecule. So a reflux is not that effective as for longer chains like Tar. So there are other ways that the Parraffin wax is targeted in the commercial plants. It can be done chemically and it can be done by isolating the wax and then processing it, or removing it and selling it as parrafin wax. For the amateur like us here, the best is to keep the fuel warmed slightly to keep it as a liquid, all the way to the engine.
    I have not tried, but you could also try adding Winter antifreeze additives used to stop Diesel from waxing up in cold temperatures.

    Leave a comment:


  • kedigen
    replied
    Originally posted by wheels View Post
    Not totally sure what you mean. Do you mean which plastics are best for fuel? There are two main plastics. Polyethylene(PE) and Polypropylene (PP). If you are unsure of what plastics, then you need to read this entire Thread. Pretty much everything has been asked and answered that can be.


    I've been away from the forum for a long time. But I made a 4,4m3 reactor for plastic. And we got positive results. The resulting product was very flammable.I did it by talking to you. In the use of pe, there was a paraffin problem. You said you use reflux. That's four years ago.

    https://www.youtube.com/watch?v=wgM_uCKhfz0

    this is 4.4 m3 reactor for plastic (without reflux)


    PLASTİK PİROLİZİ REKTÖR YAPIMI VE İŞLETİMİ


    I also have blackened problem. I am trying to solve this problem.
    I am now building a 6m3 new reactor. We will tire pyrolysis in this reactor. We will use this oil in the generator. For electricity generation. Tire oil is also quite blackened. I need to clean it.

    If this problem is not solved, the exhaust outlet is clogged. For this reason I was desperate.

    thanks

    Leave a comment:


  • wheels
    replied
    Originally posted by kedigen View Post
    Do you have a suggestion for plastic oil?
    Not totally sure what you mean. Do you mean which plastics are best for fuel? There are two main plastics. Polyethylene(PE) and Polypropylene (PP). If you are unsure of what plastics, then you need to read this entire Thread. Pretty much everything has been asked and answered that can be.

    Leave a comment:


  • kedigen
    replied
    Originally posted by wheels View Post
    You are starting to get beyond the scope of this Forum. Hence why we say stick to the two easy to process plastics.
    Once you get into Chemistry, you really REALLY need to know what you are doing. For instance, Hydrogen Peroxide and Citric Acid mixed in just the right proportion, can become highly unstable and explosive. Hydrogen Peroxide is a powerful oxidizer and highly reactive to many things. So you need to be extremely careful using it and extra extremely careful what you mix it with.
    Tyres are a terrible stock to use for fuel. The resulting oil smells terrible and it is black as you likely already know. The Chinese use it for boiler heating fuel and that's about it. It is not good for Vehicle Engines. You also end up with a huge amount of waste after the process. About 50% of the Tyre ends up as Carbon Black. Some heat the entire tyre and some remove the steel belting first before heating. Trying to clean out the Retort after a heating process is very messy.
    Do you have a suggestion for plastic oil?

    Leave a comment:


  • wheels
    replied
    Originally posted by kedigen View Post
    How can I use rubber oil as diesel? Does a mixture of hydrogen peroxide and citric acid work? Or do you have a suggestion?
    You are starting to get beyond the scope of this Forum. Hence why we say stick to the two easy to process plastics.
    Once you get into Chemistry, you really REALLY need to know what you are doing. For instance, Hydrogen Peroxide and Citric Acid mixed in just the right proportion, can become highly unstable and explosive. Hydrogen Peroxide is a powerful oxidizer and highly reactive to many things. So you need to be extremely careful using it and extra extremely careful what you mix it with.
    Tyres are a terrible stock to use for fuel. The resulting oil smells terrible and it is black as you likely already know. The Chinese use it for boiler heating fuel and that's about it. It is not good for Vehicle Engines. You also end up with a huge amount of waste after the process. About 50% of the Tyre ends up as Carbon Black. Some heat the entire tyre and some remove the steel belting first before heating. Trying to clean out the Retort after a heating process is very messy.

    Leave a comment:


  • kedigen
    replied
    Originally posted by wheels View Post
    It will be a solvent of some kind. Maybe Acetone perhaps. All that is happening is that the hydrocarbons are being diluted as such so as the different weights are settling out. However, there are couple of problems with this. firstly, note the quantity of the Solvent being used. It looks like maybe 30 to even 50%. So the cost would kind of defeat the purpose of trying to make Fuel for very little cost. Secondly, this process is not actually cleaning the Fuel, it is separating it into various weights. You have to work out if the result is the weight you want. i.e. a Petrol type fuel or a Diesel type fuel.

    How can I use rubber oil as diesel? Does a mixture of hydrogen peroxide and citric acid work? Or do you have a suggestion?

    Leave a comment:


  • wheels
    replied
    Originally posted by kedigen View Post
    What is the chemical in the video?

    https://www.youtube.com/watch?v=-ZcmNTL8sq4
    It will be a solvent of some kind. Maybe Acetone perhaps. All that is happening is that the hydrocarbons are being diluted as such so as the different weights are settling out. However, there are couple of problems with this. firstly, note the quantity of the Solvent being used. It looks like maybe 30 to even 50%. So the cost would kind of defeat the purpose of trying to make Fuel for very little cost. Secondly, this process is not actually cleaning the Fuel, it is separating it into various weights. You have to work out if the result is the weight you want. i.e. a Petrol type fuel or a Diesel type fuel.

    Leave a comment:


  • wheels
    replied
    Originally posted by rozier56 View Post
    Can some one remind me why we can't use PET in our process.I know we discussed before, but it seems the Chinese are doing it?
    I doubt the Chinese are doing it. PET is Terephthalic Acid, or more commonly known as Polyester. PET is about the only plastic that has a good resale price. It is spun directly into Polyester yarns and then made onto Carpet, Polarfleece and other material. It does not melt. It goes from Solid to Gas and then when cooled down, it turns directly into a White Crystaline powder which is pure Terephtalic Acid. This will block up all the Pipe work.

    Leave a comment:


  • wheels
    replied
    Originally posted by kedigen View Post
    Hello to everyone
    What can I do to chemically purify tyre pyrolysis oil
    I need to use it as a diesel in the generator. I filtered it with simple bleaching earth. There is too much smoke. There is too much soot. What can I do to reduce soot?




    Far from easy. There are all kinds of Carbon chains in this kind of Fuel and it requires a lot of complex work to clean up. Hence why Fuel from Tyre's is not commonly done.

    Leave a comment:

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