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Active Contributor

Join Date: Jul 2010
Posts: 17
Good Answers: 2

Adsorbed Synthesis Gas

08/31/2010 2:26 AM

I am making activated carbon from coconut shell and want to use it to put into low pressure,thin walled gas tanks to roll on and off ships to be used for dual fuel with diesel for main engine propulsion. I also make syngas for electrical generation - I want to put my gas into my carbon to do the shipping job. Does anyone have hands on experience with this in any quantities- commercial or experimental lab work. I am in the middle of a big ocean and need some outside input

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Join Date: Jun 2008
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#1

Re: Adsorbed Synthesis Gas

09/01/2010 3:36 AM

Hi,

I am not quite sure of usefulness of the following information. I will very very pleased in case it is fruitful .

http://tih.sagepub.com/content/24/9/569.abstract appearing on Toxicology and Industrial health under title " Role of activated carbon fabric mask to prevent lead absorption" a study in which I was associated, provides an insight in to the property of Activated Carbon Fabric (ACF) to reduce toxic air pollutants like lead.

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Power-User

Join Date: Aug 2010
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#2

Re: Adsorbed Synthesis Gas

09/08/2010 2:54 AM

It has been a while since I studied P Chem, so this is just rambling, but. . .

it seems like what you want to do is reduce the cost and risk of shipping and using syngas by adsorbing the gas into activated carbon in the form of coconut shell charcoal, using thin-walled tanks as containers to save weight and reduce risk of explosion and fire. The key factor in this plan is the nature of the syngas. For the tanks of charcoal to work this way, there needs to be strong bonding between the carbon and the gas. The nature of a gas in general is that it does not have strong bonding to itself and does have a relatively low molecular weight to produce a significant vapor pressure at your working temperature. I would assume that activated carbon (AC) is bonding primarily through free radical and VanderWaals bonding. The pressure-reducing bonding needs to be essentially 100% reversible to allow use of the gas when it it is removed from the tank. Gasoline has the character of being containable in a low pressure, thin-walled tank, as it is used in its gaseous form by mechanical mixing in air and heating. It might be possible to generate a low energy form of syngas/AC which could free the syngas from the AC by heating or some other triggering agent, though heat is the most common (that is,after all, how the AC is made). If your syngas is a mixture, that makes things more interesting. The biggest problem I envision for your system is whether the weight and cost of what is under consideration, using a generic syngas and AC from coconut shell, will be the best choice. If this is not contemplated as being in competition with other systems, say it is just for you or a limited group, then it may work. If you are going up against companies with greater resources, they may well be able to beat you with a cusiom-structured gas and adsorbent As I said, its all in the nature of the syngas.

good luck!

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Active Contributor

Join Date: Jul 2010
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Good Answers: 2
#3
In reply to #2

Re: Adsorbed Synthesis Gas

09/11/2010 5:48 PM

Hi and thanks for your contribution- I only just picked this up - sorry I usually reply sooner. I don't really have a personal need or strong desire to make an adsortion tank/system - it was a request/inquiry from a mate who is worried about the next fuel hike that will put him and all small shippers (in the south pacific) out of business. he doesn't want to spend any money on R&D so I have dropped out -for his purposes anyway. As I make the worlds's best coconutshell carbon, fresh coconut cream and virgin coconut oil- I have enough on my own plate- right now-

Adsorded synthesis gas/storage will evolve to a certain level of importance until it becomes a commodity - then will fall out due to competition/engulf and deavour tactics by the ones that control energy now. unless- they want to fly it- we'll see

Nothing will change much until we re-establish the old barter system - I provide what I have and you need and vice versa.

I reckon in the coming days we will be more worried about fresh water than fossil fuel

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