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Jerry dycus
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Gold
Re: Using waste
Jerry dycus   11/27/2013 10:34:14 AM
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Cruise ship as many others could easily do this. Easily gasified and fed into the engine, generator intakes to reduce fuel needs and pollution.

 

Not mentioned is 50% of plastics can be distilled directly into gasoline and diesel saving 50% of the cost.

Most other plastics can be made back into plastics.

A couple problems as shown gasification with air means low energy fuels as so much N2 over doubles it's volume.  Better to just heat it into a gas and go from there.

Next water content of the feedstock greatly reduces eff.

To get the best from garbage you need to keep it seperate, while more costly you get such higher value products, it's worth it.  10lbs of plastic equals 1gal gasoline/diesel.

Plus it creates jobs that pay for themselves and gives us a cleaner, lower cost environment. 

Habib Tariq
User Rank
Iron
Re: Using waste
Habib Tariq   11/27/2013 2:34:39 AM
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This seems like a very good solution to the problem of plastic but any idea about what is approximate cost of setting up a gasification system and the running cost? It can be a key factor in determining the feasibility of this process? 

notarboca
User Rank
Gold
Re: Using waste
notarboca   11/26/2013 11:28:44 PM
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Elizabeth, I am concerned about the tons of plastic and other wastes being discharged at sea instead of used for energy.  I wonder if a gasification plant could be constructed aboard cruise ships, providing fuel energy as well as reducing the overboard waste.

far911
User Rank
Silver
Re: Using waste
far911   11/26/2013 1:36:03 PM
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As we know all the waste that cant be recycled and is being burnt to dispose of is resulting in damaging OZONE layer, which is very dangerous for the enviorment.

Ann R. Thryft
User Rank
Blogger
Re: Using waste
Ann R. Thryft   11/26/2013 1:14:47 PM
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Thanks Elizabeth, I couldn't agree more.

Elizabeth M
User Rank
Blogger
Re: Using waste
Elizabeth M   11/26/2013 12:40:37 PM
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Those are all interesting and relevant targets, Ann, I agree. I'm quite interested in what's being done in all of those areas as well, especially the first two, especially when it comes to plastic.

Ann R. Thryft
User Rank
Blogger
Re: Using waste
Ann R. Thryft   11/26/2013 12:29:17 PM
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TJ searching the PDF of the report on "ash" produced these statements: "The combustion process and cleaning of the gases produce fly and bottom ash, further processed to remove metals for recycling. The ash can be used as alternative daily cover at landfills or as construction aggregate." There's also some further discussion of how ash is created and handled within different up-/down-cross-draft gasification systems.

Ann R. Thryft
User Rank
Blogger
Re: Using waste
Ann R. Thryft   11/26/2013 12:27:30 PM
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Thanks Elizabeth and Rob. This is an area that interests me a lot, because it hits so many different targets: getting non-recycled plastic out of the environment, using waste creatively, re-using some already produced and very expensively-produced energy sources, and making non-petroleum-derived fuel.

Elizabeth M
User Rank
Blogger
Re: Using waste
Elizabeth M   11/26/2013 10:46:47 AM
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I agree, Rob, and Ann has been on top of this. I really like to see the efforts around re-use of material, especially plastic, that would otherwise just become landfill or ocean pollution. If this material was created and used then it makes sense that it can be deconstructed and reused. Thanks for keeping a close eye on these efforts.

TJ McDermott
User Rank
Blogger
Re: Using waste
TJ McDermott   11/26/2013 10:27:47 AM
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Ann, this was really interesting.  The other product of the process, shown in the last slide, is ash.  Did your sources say anything about it, such as what volume / weight percentage is it compared to the original feedstock, or if the ash has a use, its toxicity?

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