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How to turn plastic waste into diesel fuel cheaply

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  • Originally posted by imakebiodiesel View Post
    The reason this test is important is that unsaturated hydrocarbons are unstable and will tend to oxidize and polymerize more quickly than saturated hydrocarbons (alkanes)
    Here helps BHT. 1000 ppm.

    Comment


    • Sorry, what is BHT?

      Comment


      • Butylated hydroxytoluene

        IUPAC name[hide]2,6-bis(1,1-dimethylethyl)-4-methylphenol
        Other names[hide]2,6-di-tert-butyl-4-methylphenol; 2,6-di-tert-butyl-p-cresol (DBPC); 3, 5-di-tert-butyl-4-hydroxytoluene; butylated hydroxytoluene; BHT
        Identifiers
        CAS number 128-37-0 Y
        ChemSpider 13835296 Y
        UNII 1P9D0Z171K Y
        EC number 204-881-4
        KEGG D02413 Y
        ChEBI CHEBI:34247 Y
        ChEMBL CHEMBL146 Y
        RTECS number GO7875000
        Jmol-3D images Image 1
        SMILES
        [show]CC(C)(C)c1cc(C)cc(c1O)C(C)(C)C
        InChI
        [show]InChI=1S/C15H24O/c1-10-8-11(14(2,3)4)13(16)12(9-10)15(5,6)7/h8-9,16H,1-7H3 Y
        Key: NLZUEZXRPGMBCV-UHFFFAOYSA-N Y
        --------------------------------------------------------------------------------
        InChI=1/C15H24O/c1-10-8-11(14(2,3)4)13(16)12(9-10)15(5,6)7/h8-9,16H,1-7H3
        Key: NLZUEZXRPGMBCV-UHFFFAOYAU
        Properties
        Molecular formula C15H24O
        Molar mass 220.35 g/mol
        Appearance White powder
        Density 1.048 g/cm3, solid
        Melting point 7073 C

        Boiling point 265 C (538 K)

        Solubility in water 1.1 mg/L (20 C)[1]
        Hazards
        MSDS External MSDS
        R-phrases 22-36 37 38
        S-phrases 26-36
        Main hazards Flammable
        Flash point 127 C
        Related compounds
        Related compounds Butylated hydroxyanisole
        Y(what is this?) (verify)
        Except where noted otherwise, data are given for materials in their standard state (at 25 C, 100 kPa)
        Infobox references

        Butylated hydroxytoluene (BHT), also known as butylhydroxytoluene, is a lipophilic (fat-soluble) organic compound that is primarily used as an antioxidant food additive (E number E321) as well as an antioxidant additive in cosmetics, pharmaceuticals, jet fuels, rubber, petroleum products, electrical transformer oil,[2] and embalming fluid.


        It solve probleme with unsaturated olefines.

        Comment


        • Sounds like it will solve my problem. Ive located a supplier in the UK. Ill email them to see can I but a small amount.

          Comment


          • I have been distilling WMO for 3 years. I got nice golden pale yellow color. But, immediately started to become dark. Brown to black color, with haevy sludge on bottom. It was gum and tar, the product of repolymersiation unsaturated cracked olefines. BHT solves probleme with sludge. No more sludge after treatment with 0,1 % of bht. The color is better. Not quite good. In 5-6 days the color is dark again. No sludge. No injectors clogged .Still color is brown.

            The mixing temperature should be under 100 c. Over 100 c will destroy BHT.


            Comment


            • Hi friends
              I m a regular reader of ur posts n u all are really working hard on it
              My question is can we use local clay n lime as a catalys

              Where this catalys need to use in reflux or in heating condenser

              Catalys can be used 10% from the total weight of waste plastic

              Can u plz upload full process video with explaning each and every part it will help me to understand to slow learners like me

              Name of the catalys available easily n its using process

              I want this info becoz i have decided to make it my science project which is showned in a science exibition on behalft of my school

              So friends plz help me with required info as my school teacher need a demo before supporting me financialy

              The science exibition going to held on 15/10/2011

              Comment


              • Bht

                [QUOTE Here helps BHT. 1000 ppm. QUOTE]

                Hello Otpatnulge & Imakebiodiesel ;
                I have tried BHT , it prevents polymerisation for a week or & after one week the fuel get darker & after two weeks it is the same as without BHT .

                Is there anyother additive to try ???

                All the plastic derived fuels has a bad smell of paraffins , is there a way to remove it ???

                Comment


                • waste plastic oil catalyst

                  Hello,

                  Found this (Dont know if it is useful but I will post it anyway):

                  waste plastic oil catalyst, palladium catalyst Sell123.org

                  I did my first run yesterday and managed to convert plastic into a liquid that turned into wax over night...lol I knew it was going to happen since I am not controlling the temps on the different condensers but I just had to do it...

                  I will do a few modifications based on what is posted on this forum. Thanks to all for the very valuable information and I hope that at some point I can return the favor with some info of my own.

                  Regards,

                  "aigu"

                  Comment


                  • Originally posted by aigu View Post
                    Hello,

                    I did my first run yesterday and managed to convert plastic into a liquid that turned into wax over night...lol I knew it was going to happen since I am not controlling the temps on the different condensers but I just had to do it...
                    Hello ;
                    You r on the right track , U most probably used PE plastic , as it will always form wax overnight . The pour point of PE derived fuel is very low that's why it waxes at room temerature .
                    Now U can put this wax again in your reactor & repeat the same process , this time U will get liquid fuel .
                    You can also switch to PP-plastic waste , which never gets waxy & has better RON value & its pour point is higher meaning ity will not crystalize at room temperature .

                    Paladium catalyst or zeolites are expensive difficult to get in your country . The main benefit of these catalyst is to attain more gasoline out .
                    In my opinion clays are the best bet as they are very cheap, easily available locally everywhere .
                    Last edited by Asad Farooqui; 09-20-2011, 07:48 PM.

                    Comment


                    • Does anybody try to put clay in reactor, in liquid phase?
                      Is there any diferent between clay and ceramic?

                      I think that so low reflux temperature means, indeed, all double cracking of PE. Same result as second time of cracking, as describe of Jetijs.

                      Comment


                      • Originally posted by Asad Farooqui View Post
                        Hello ;
                        You r on the right track , U most probably used PE plastic , as it will always form wax overnight . The pour point of PE derived fuel is very low that's why it waxes at room temerature .
                        Now U can put this wax again in your reactor & repeat the same process , this time U will get liquid fuel .
                        You can also switch to PP-plastic waste , which never gets waxy & has better RON value & its pour point is higher meaning ity will not crystalize at room temperature .

                        Paladium catalyst or zeolites are expensive difficult to get in your country . The main benefit of these catalyst is to attain more gasoline out .
                        In my opinion clays are the best bet as they are very cheap, easily available locally everywhere .
                        Thanks Asad. I will try to reprocess the wax. Yes, I was using HDPE because I can get tons of it a lot cheaper than PP.

                        I am in the process of making a heated catalyst on top of the reactor and from there it will go into a heated condenser and into a final condenser. I have seen different temperature recomendations on this thread... Do you have any suggestions?

                        Here is a diagram of my setup:


                        Uploaded with ImageShack.us

                        Comment


                        • Asad you are right about clay catalysts, they are cheap and available almost everywhere. Metal catalysts and prepared zeolites are too expensive for our type of process. In any case these catalysts may overcrack and produce too much gas and volatiles. However there are ways of preparing or activating clays so that they work better.. I am experimenting with clay which has been soaked in dilute sulphuric acid ( battery acid)for 2 weeks and then washed with water.
                          It may be some time before I can test this activated clay because my present clay catalyst is still working perfectly after 6 batches and want to find out how long it will last.
                          Clay and ceramic mean the same thing but for our purposes clay would mean unbaked clay and ceramic would mean fired or baked clay.

                          Comment


                          • Aigu, looking at the diagram of your setup, it is almost identical to mine. However I notice you are using a pump to force the gas into the propane stream going to the burner. This may draw the vapours through the catalyst too quickly and prevent proper cracking. It might be better to replace the pump with a check valve so that the gas flows more slowly but at the same time prevents propane from flowing into the condenser There are check valves on the fuel lines of many diesel cars so you could get one cheaply in a breakers yard.
                            A water bubbler is also a good safety feature.

                            Comment


                            • hey imakediesel bro u have answer my question the days are passing n i want your help for making a demo model of 2-3 kg need some guidency

                              Comment


                              • catalyst and production oil

                                Hi all
                                I have suggested
                                I made myself get some results I post in the forum
                                A raw material melt and evaporate in vacuum through the catalytic mass.
                                Here are two forms of catalytic
                                Fluid catalytic cracking
                                B fixed bed catalytic cracking
                                Fluid catalytic cracking parameters needed to make money forum many of us at
                                So I suggest using frequencies near
                                kaolin filter. One more thing clay catalyst after heat denaturation 605o C in 3 hours or at 800oC in 3 hours, both to cool to room temperature is fill in the parts as I have mentioned catalyst.
                                ImageShack® - Online Photo and Video Hosting
                                evaporatehydrocacbon passing the catalyst must be thermally stable. This is very important and it will condesation some paraffin and wax. color stable product long

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