Re: Fwd: RE: PLASTIC WASTE

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Lloyd Helferty

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Aug 20, 2019, 6:35:16 AM8/20/19
to Dan Johnstone, Biochar-Ontario, CBI (Canadian Biochar Initiative) [google]

See also:

https://youtu.be/KKTAdZFc-ss

Apr 11, 2013
Klean Industries builds and deploys the worlds the largest and most commercially successful plastics pyrolysis and gasification plants. Our plastic waste solutions produce high grade diesel fuel from scrap plastics. Our primary feedstock is PP, PE, PS, HDPE, LDPE. This process diverts plastic waste from landfills and produces a highly usable commodity that is cleaner burning and is more environmentally friendly than conventional refinery based diesel fuels. This video features proven commercial plastic pyrolysis technologies that have been in large scale operations for over 10 years. This plant installation processes 50 tonnes of waste plastics per day and is the largest plant of its kind in commercial operation worldwide. It has received many significant engineering awards. A unique feature of the system is its ability to process all kinds of waste plastics including the hard to treat PET's & PVC's.

Based in Vancouver... an employee-owned corporation.

Regards,

Lloyd Helferty, Engineering Technologist
Principal, Biochar Consulting (Canada)
System Leader and Sector Expert for the "Climate Smart" Platform
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"The best way to predict the future is to create it."​ - Willy Brandt
On 2019-08-17 11:57 AM, Dan Johnstone wrote:

Pyrolysis, specifically multi-stage pyolysis in an oxygen vacuum has the ability to deal with far more than just plastic waste. In stage 1 the temperature is maintained at a low level.  Stage 2 at a higher temperature is used if there are contaminants left from stage 1.

This technology should be paired with an effective recycling policy (recycle all material that can be cost effectively recycled) and diversion (divert what cannot be processed by the pyrolysis (batteries, pyrolysis is not effective on solid metal it is effective at removing coatings from metals).

It makes significantly more sense than introducing producer responsibility charges which don't impact waste but simply collect revenue for the government!

Dan


On 2019-08-17 11:49 a.m., Lloyd Helferty (BCC) wrote:

Dealing with WASTE PLASTICS in Ontario using pyrolysis?

 Is it the solution to Landfills, Waste and Energy that we have been looking for?

Regards,

 Lloyd Helferty


-------- Forwarded Message --------
Subject: RE: PLASTIC WASTE
Date: Wed, 14 Aug 2019 13:51:49 +0000
From: martin bush
To: Dan Johnstone, Glenn Marshall
CC: Liz, lgreig, Frann Harris, Peter DeVita, Fran Bazos, Marta Ecsedi, voteforweibo, Carrie Tai GW, ahampton, Esther Collier, gboxen, aaron.leung, J. David Spencer, djking, tganna, lhelferty, cbalant, Rachel Parent, james


Thanks for this Dan,

 

The pyrolysis system look like a good solution to the immediate problem of plastics pollution since 5 t of plastics is used to produce 4000 litres of fuel which displaces 4000 litres of diesel from the O&G industry which is produced from a much larger quantity of crude (not to mention all the CH4 emissions along the way).  If the CO2 is captured and used in greenhouses to grow food then that’s an another co-benefit.  

 

Curious about one thing: 5 t of plastics produces less than 4 t of fuel so there’s a ton or more of solid waste which should be mainly pure carbon—since all the volatiles have been driven off. Is this is in a form that could be used in some way? Re the dioxin question, the pyrolysis process should break down most of the complex chemicals, which is good. In a landfill they may eventually leach into groundwater.

 

Longer term of course we need to reduce the use of plastics, but we will always have plastics.  We can’t build wind turbines or EVs without them!

 

Martin

 

 

From: Dan Johnstone
Sent: 14 August 2019 09:03
To: Glenn Marshall
Cc: Liz; lgreig; Frann Harris; Peter DeVita; Fran Bazos; Marta Ecsedi; voteforweibo; martin.bush; Carrie Tai GW; ahampton; Esther Collier; gboxen; aaron.leung; J. David Spencer; djking; tganna; lhelferty; cbalant; Rachel Parent; james
Subject: Re: PLASTIC WASTE

 

Glenn,

Typically emissions from burning natural gas for example to heat a pyrolysis kiln are released into the environment.  We are proposing to capture these emissions and sequester them in plants grown to feed people.

There are two technologies at play.  Thermal decomposition is not incineration.  Thermal decomposition typically separates carbons (reducing potential emissions!) and other solids from hydrocarbons in plastics or other waste streams.  I am talking about incineration for the pyrolysis derived hydrocarbons or fuel.  Instead of assuming that all incineration is bad, I am proposing that you look at the science of the incineration.  For the time being we are stuck with diesel and the various diesel alternatives as a source of fuel for transportation.  Mixing pyrolysis derived fuels with the various diesel fuels (bunker fuels and so forth) reduces the overall diesel emissions significantly. 10% pyrolytic fuel and 90% diesel reduces the overall diesel emissions by 20%!  Compare this to biodiesel which when you add the emissions from making the biodiesel back to the emissions from burning the biodiesel, you end up producing more greenhouse gas emissions than result from burning regular diesel.

To the best of my knowledge there is no way to mix plastics from different technologies or to clean plastics of contaminants (the person who takes food grade plastic, stores rat poison in it and puts it out for recycling).  We need solutions that work for all materials and all situations.

Essentially I am proposing that the smartest path to the greatest greenhouse gas emission reduction involves using real science that exists today to solve problems now and not hope that people will change how they will do things in future through taxation or other attempts to force behavioral change.  This won't work in the short term.  I welcome long term strategies that make sense but lets also make a difference today.

Dan

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