How to turn plastic waste into diesel fuel cheaply

[kaguar]

Jetijs,
It was wmo and a bit of PE/PP. As it is a continuous process I fill the reboiler with plastic at the beginning and continue with adding the wmo.
Regarding the catalyst you are pursuing. Clay is good, but has to be delaminated firstly, otherwise some clays tend to crack pyrolysis gases to heavy oils and others to light gases. Plus it needs to be regenerated all the time as it gets very quickly covered by carbon which prevent it from doing it`s job. You should check the net as there are some references on how to use clays as catalysts.

[Asad Farooqui]

[QUOTE Here is BHT[/QUOTE]

Hello everybody ;

Following is another diesel additive supplier from China .
Is there anyone checked there stuff .


Jinzhou Xinxing Petroleum Additive Co., Ltd. - Petroleum additive, lubricant additive, detergent

[islander]

Thank you so much for answer, but I think the fuel can not be mixed with water, the diesel is very hidrofob and I think in this case water will be like filter for carbon black

Hi
Take care, diesel and oils are not so hydrophobe as you think :
These molecules have one polar end to attach water molecules ! I have read about water content in diesel as high as 7 per cent...

I beleive the attached water is still very active to rust injector needles and the like.

I don't think the water could remove contaminants ? but you can try and tell us later....

[Francisco Mora]

hello all, I present the condenser gas inside are 25 copper tubes through which flows the gas, they are cooled by water, with pump 1 / 2 hp. the other photos are the furnace reactor that has two holes where the burners and a entgran more exhaust gases. the refractory brick is built and plastered with cement. soon be testing, what worries me is the color change of diesel, good as he says if I need PE jetis tendere not those problems, I am researching my professors chemical composition on this system I will share all information.

[kaguar]

Francisco,
great work but you should avoid copper and zinc in any part of the process as those metals act as catalysts in repolymerization of this sort of fuel which means increased amount of sludge.

[Francisco Mora]

Francisco,
great work but you should avoid copper and zinc in any part of the process as those metals act as catalysts in repolymerization of this sort of fuel which means increased amount of sludge.

Kaguya hello, thanks for your comment, I have researched and gas condenser which is the most efficient and manufactures conclucion which is best for distillates at a fixed temperature, another option is the cooling tower with splash plates, had not taken into account the copper pipes, could you help me with some gas condenser design, I've spent a lot of my savings and need a good condenser gas.: Notworthy:

[kaguar]

Francisco,
I`ve got an air-cooled condenser. I had quite a few of them - always bigger and bigger. Air cooled are easier to make and maintain but they are generally bigger than water cooled ones. The overall size of the condenser would basically depend on the reactor output. The more gases per second the bigger condenser should be. If you are after air cooled one we can compare the capacities of our reactors and then you could know what size would be adequate for yours.

[otpadnoulje]

air coolers - 15 liters/ m2 h
water coolers- 30 l/m2 h
oil-oil coolers 8 l /m2 h

Oil-oil coolers, means cooler where input oil cools output vapors.



It should be shell and tube heat exchanger.







my two pennies worth

[otpadnoulje]

--------------------------------------------------------------------------------
Typical Overall Heat Transfer Coefficients


--------------------------------------------------------------------------------
Shell and Tube Heat Exchangers
Hot Fluid Cold Fluid U [W/m2C]
Heat Exchangers
Water Water 800 - 1500
Organic solvents Organic Solvents 100 - 300
Light oils Light oils 100 - 400
Heavy oils Heavy oils 50 - 300
Reduced crude Flashed crude 35 - 150
Regenerated DEA Foul DEA 450 - 650
Gases (p = atm) Gases (p = atm) 5 - 35
Gases (p = 200 bar) Gases (p = 200 bar) 100 - 300

Coolers
Organic solvents Water 250 - 750
Light oils Water 350 - 700
Heavy oils Water 60 - 300
Reduced crude Water 75 - 200
Gases (p = atm) Water 5 - 35
Gases (p = 200 bar) Water 150 - 400
Gases Water 20 - 300
Organic solvents Brine 150 - 500
Water Brine 600 - 1200
Gases Brine 15 - 250

Heaters
Steam Water 1500 - 4000
Steam Organic solvents 500 - 1000
Steam Light oils 300 - 900
Steam Heavy oils 60 - 450
Steam Gases 30 - 300
Heat Transfer (hot) Oil Heavy oils 50 - 300
Heat Transfer (hot) Oil Gases 20 - 200
Flue gases Steam 30 - 100
Flue gases Hydrocarbon vapours 30 -100

Condensers
Aqueouos vapours Water 1000 - 1500
Organic vapours Water 700 - 1000
Refinery hydrocarbons Water 400 - 550
Vapours with some non condensibles Water 500 - 700
Vacuum condensers Water 200 - 500

Vaporisers
Steam Aqueouos solutions 1000 - 1500
Steam Light organics 900 - 1200
Steam Heavy organics 600 - 900
Heat Transfer (hot) oil Refinery hydrocarbons 250 - 550

Air Cooled Exchangers
Process Fluid U [W/m2C]
Water 300 - 450
Light organics 300 - 700
Heavy organics 50 - 150
Gases 50 - 300
Condensing hydrocarbons 300 - 600

Immersed coils
Coil Pool U [W/m2C]
Natural circulation
Steam Dilute aqueouos solutions 500 - 1000
Steam Light oils 200 - 300
Steam Heavy oils 70 - 150
Aqueouos solutions Water 200 - 500
Light oils Water 100 - 150

Agitated
Steam Dilute aqueouos solutions 800 - 1500
Steam Light oils 300 - 500
Steam Heavy oils 200 - 400
Aqueouos solutions Water 400 - 700
Light oils Water 200 - 300

Jacketed vessels
Jacket Vessel U [W/m2C]
Steam Dilute aqueouos solutions 500 - 700
Steam Light organics 250 - 500
Water Dilute aqueouos solutions 200 - 500
Water Light organics 200 - 300

copy from:
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The Engineering Page

[Francisco Mora]

Francisco,
I`ve got an air-cooled condenser. I had quite a few of them - always bigger and bigger. Air cooled are easier to make and maintain but they are generally bigger than water cooled ones. The overall size of the condenser would basically depend on the reactor output. The more gases per second the bigger condenser should be. If you are after air cooled one we can compare the capacities of our reactors and then you could know what size would be adequate for yours.

Kaguar hello, my reactor has a capacity of 150 liters with an outlet pipe of 2 inches, a friend told me that the gas condenser I can do to empty oil drums, but not as its internal structure could help me with a graphic, I would greatly appreciate.

[keith20mm]

Condensing temperature

I managed to obtain a reference handbook, entitled Handbook of Petroleum Refining Processes, 3rd edition, on inter-library loan.

Chapter 12, Visbreaking, points out an interesting fact, that condenser temperature STOPS the further breakdown of fractions, in other words, the condenser temperature sets the obtained fraction... (mostly, we kind of already knew this, or, that lighter fractions continue to be vapor and pass by the section condenser temperature.)

It would be a very good thing that any reported fractions from condensers also include the condenser temperature, if possible, along with the obtained liquids.

Search engine key "visbreaking", will provide much information as to direction for your intended purpose.

[keith20mm]

Visbreaking, some more

US Patents:

4108730 Method for treatment of rubber and plastic wastes 1978
5057204 Catalytic visbreaking process
4615791 Visbreaking process

European Patent EP0063654A1

US patents search "ttl/visbreaking" at the search engine US Patent Full-Text Database Manual Search

Residence time at boil temperature is of primary importance. The next section would be, depending on desired product, a further heating of the vapor to specific temperatures, then condensation at specific cooling points.

Visbreaker - Wikipedia, the free encyclopedia

[abhi1607]

insulator

why going for aluminium oxide block as insultor....if we go for somethg else it will again bring down the cost///..????

[Jetijs]

Hi all.
I finally got my setup to run. Experimented with HDPE for two days. It works quite nicely. Here is a video:
YouTube - ‪diesel from HDPE‬‏

With PE you get great looking fuel, like a whiskey as soon as it is out of the condenser, but when it cools down, it solidifies as paraffin wax:


Here you can see partial waxing from left to right. The bottles more to the left are cooler.



And after a few minutes you get this:


I also tried aluminum oxide bits as catalyst, but they make the fuel to solidify into waxes that are brighter, more white and denser and melt at higher temperatures. So the aluminum oxide makes things worse. As the aluminum oxide is removed after the process, it is yellow, soaked with paraffin and burns quite nicely:







If you run the waxes through the process again, you get more liquid fuel, but it still has lots of waxes in it that make the fuel misty:



About 3 liters of plastic leaves this much carbon behind:


More experiments to come
Thanks,
Jetijs

[HOPE_FOR_HUMANITY]

Hi all.
I finally got my setup to run. Experimented with HDPE for two days. It works quite nicely. Here is a video:
YouTube - ‪diesel from HDPE‬‏

With PE you get great looking fuel, like a whiskey as soon as it is out of the condenser, but when it cools down, it solidifies as paraffin wax:


Here you can see partial waxing from left to right. The bottles more to the left are cooler.



And after a few minutes you get this:


I also tried aluminum oxide bits as catalyst, but they make the fuel to solidify into waxes that are brighter, more white and denser and melt at higher temperatures. So the aluminum oxide makes things worse. As the aluminum oxide is removed after the process, it is yellow, soaked with paraffin and burns quite nicely:







If you run the waxes through the process again, you get more liquid fuel, but it still has lots of waxes in it that make the fuel misty:



About 3 liters of plastic leaves this much carbon behind:


More experiments to come
Thanks,
Jetijs

Great work Jeti
May be some additive can make the wax in liquidity, may be some thinner