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Extracting oil from Plastics

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  • Extracting oil from Plastics

    Article

    Giant microwave turns plastic back to oil

    A US company is taking plastics recycling to another level – turning them back into the oil they were made from, and gas.

    All that is needed, claims Global Resource Corporation (GRC), is a finely tuned microwave and – hey presto! – a mix of materials that were made from oil can be reduced back to oil and combustible gas (and a few leftovers).

    Key to GRC’s process is a machine that uses 1200 different frequencies within the microwave range, which act on specific hydrocarbon materials. As the material is zapped at the appropriate wavelength, part of the hydrocarbons that make up the plastic and rubber in the material are broken down into diesel oil and combustible gas.

    GRC's machine is called the Hawk-10. Its smaller incarnations look just like an industrial microwave with bits of machinery attached to it. Larger versions resemble a concrete mixer.

    "Anything that has a hydrocarbon base will be affected by our process," says Jerry Meddick, director of business development at GRC, based in New Jersey. "We release those hydrocarbon molecules from the material and it then becomes gas and oil."

    Whatever does not have a hydrocarbon base is left behind, minus any water it contained as this gets evaporated in the microwave.
    Simplified recycling

    "Take a piece of copper wiring," says Meddick. "It is encased in plastic – a kind of hydrocarbon material. We release all the hydrocarbons, which strips the casing off the wire." Not only does the process produce fuel in the form of oil and gas, it also makes it easier to extract the copper wire for recycling.

    Similarly, running 9.1 kilograms of ground-up tyres through the Hawk-10 produces 4.54 litres of diesel oil, 1.42 cubic metres of combustible gas, 1 kg of steel and 3.40 kg of carbon black, Meddick says.

    Less landfill

    Gershow Recycling, a scrap metal company based in New York, US, has just said it will be the first to buy a Hawk-10. Gershow collects metal products, shreds them and turns them into usable pure metals. Most of its scrap comes from old cars, but for every ton of steel that the company recovers, between 226 kg and 318 kg of "autofluff" is produced.

    Autofluff is the stuff that is left over after a car has been shredded and the steel extracted. It contains plastics, rubber, wood, paper, fabrics, glass, sand, dirt, and various bits of metal. GRC says its Hawk-10 can extract enough oil and gas from the left-over fluff to run the Hawk-10 itself and a number of other machines used by Gershow.

    Because it makes extracting reusable metal more efficient and evaporates water from autofluff, the Hawk-10 should also reduce the amount of end material that needs to be deposited in landfill sites.

    I do believe this calls for a SMAC quote!

    Fossil fuels in the last century reached their extreme prices because of their inherent utility: they pack a great deal of potential energy into an extremely efficient package. If we can but sidestep the 100 million year production process, we can corner this market once again.

    -Chairman Morgan, The Centauri Monopoly.
    Today, you are the waves of the Pacific, pushing ever eastward. You are the sequoias rising from the Sierra Nevada, defiant and enduring.

  • #2
    Thermal depolymerization is old news and we've had threads on it in the past.
    Try http://wordforge.net/index.php for discussion and debate.

    Comment


    • #3
      recycling

      Comment


      • #4
        Originally posted by Oerdin
        Thermal depolymerization is old news and we've had threads on it in the past.
        good old news

        Comment


        • #5
          Originally posted by Oerdin
          Thermal depolymerization is old news and we've had threads on it in the past.
          None that I am aware of that utilized microwaves as the heat source.
          "Just puttin on the foil" - Jeff Hanson

          “In a democracy, I realize you don’t need to talk to the top leader to know how the country feels. When I go to a dictatorship, I only have to talk to one person and that’s the dictator, because he speaks for all the people.” - Jimmy Carter

          Comment


          • #6
            question

            we make plastics from petrochemicals. At some cost in energy, labor, capital. This would imply to me, that the market value of plastics has to always be higher than the cost of the oil used to make the petrochemical feedstocks. Well actually "value of application plastics" > value of basic petrochemicals > value of oil and gas.

            So it would seem to always make more sense to recycle plastic back into plastic, or at least into basic petrochemicals, than into oil, UNLESS the cost of this process is significantly less than the cost of conventional plastics to plastics recycling.

            edit: it sounds like this IS the case, at least in select applications, like the insulation on copper wire example.
            "A person cannot approach the divine by reaching beyond the human. To become human, is what this individual person, has been created for.” Martin Buber

            Comment


            • #7
              Originally posted by lord of the mark
              question

              we make plastics from petrochemicals. At some cost in energy, labor, capital. This would imply to me, that the market value of plastics has to always be higher than the cost of the oil used to make the petrochemical feedstocks. Well actually "value of application plastics" > value of basic petrochemicals > value of oil and gas.

              So it would seem to always make more sense to recycle plastic back into plastic, or at least into basic petrochemicals, than into oil, UNLESS the cost of this process is significantly less than the cost of conventional plastics to plastics recycling.

              edit: it sounds like this IS the case, at least in select applications, like the insulation on copper wire example.
              There are only select waste streams of use for plastic recycling. For example, polyethylene can often be recycled back into polyethylene in the form of black poly for trash bags. But many forms of plastics do not lend themselves to recycling and further more often than not the purity of the plastic is compromised so that only low end uses of plastic are alternatives for recycling.
              "Just puttin on the foil" - Jeff Hanson

              “In a democracy, I realize you don’t need to talk to the top leader to know how the country feels. When I go to a dictatorship, I only have to talk to one person and that’s the dictator, because he speaks for all the people.” - Jimmy Carter

              Comment


              • #8
                there's only

                so much filler for insulated jackets needed each year
                “It is no use trying to 'see through' first principles. If you see through everything, then everything is transparent. But a wholly transparent world is an invisible world. To 'see through' all things is the same as not to see.”

                ― C.S. Lewis, The Abolition of Man

                Comment


                • #9
                  Does it work against humans as well?

                  Another SMAC quote:

                  ##Recycling Tanks
                  #FAC3
                  It is every citizen's final duty to go into the tanks and
                  become one with all the people.
                  ^
                  ^ -- Chairman Sheng-ji Yang,
                  ^ "Ethics for Tomorrow"
                  Contraria sunt Complementa. -- Niels Bohr
                  Mods: SMAniaC (SMAC) & Planetfall (Civ4)

                  Comment


                  • #10
                    Patagonia turns recycled pop bottles into polyester which they use in a number of their products (e.g., baselayers, fleece).
                    Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety. - Ben Franklin
                    Iain Banks missed deadline due to Civ | The eyes are the groin of the head. - Dwight Schrute.
                    One more turn .... One more turn .... | WWTSD

                    Comment


                    • #11
                      I wonder how long it will take before we'll be able to microwave entire nations back to the stone-age
                      I will never understand why some people on Apolyton find you so clever. You're predictable, mundane, and a google-whore and the most observant of us all know this. Your battles of "wits" rely on obscurity and whenever you fail to find something sufficiently obscure, like this, you just act like a 5 year old. Congratulations, molly.

                      Asher on molly bloom

                      Comment


                      • #12
                        Originally posted by Oerdin
                        Thermal depolymerization is old news and we've had threads on it in the past.
                        I lost my thermal depolymerization virginity on this thread. For me, it will always be special.
                        Long time member @ Apolyton
                        Civilization player since the dawn of time

                        Comment


                        • #13
                          Originally posted by Datajack Franit
                          I wonder how long it will take before we'll be able to microwave entire nations back to the stone-age
                          Again, is it more energy efficient than bombing?
                          Why doing it the easy way if it is possible to do it complicated?

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