🚀 go-pugleaf

["Followup-To:" header set to sci.energy.]
On 2008-09-11, Ron Jones <ron@ronjones.org.uk> wrote:
> HLS wrote:
>> I did a websearch recently and found a decent site where they have the
>> technology to
>> covert fuel injection vehicles  (particularly important since
>> carbureted small cars are
>> all but dinosaurs).
>>
>> The Phill (sp$) system is available to compress your own natural gas,
>> but it seems
>> to be a bit expensive. Probably safe, but also requires periodic
>> maintenance...good for
>> a number of rebuilds.  I feel one could engineer his own compressor
>> system, but could
>> also end up winning a Darwin award.
>>
>> If you cant find the first site, I will see if I can retrace my steps.
>
> The main problem is that methane will not liquify when compressed at 
> ambient, so you will have to design in a high pressure storage system
>

Adsorption technology offer significant reduction in pressures
required to store CNG. This was a link in the message I got
from the NGV global list,

http://www.ngvglobal.com/en/market-developments/energtek-inaugurates-first-cng-lite-compression-station-in-the-philippines-02098.html

To get around annoying excessive line wrap,

http://tinyurl.com/6jg7yg

Below is the only supplier I've found for adsorption tanks in 
North America,

http://www.gas-tec.com/products_5.html

The largest tank there stores 130 cf at 275 psi, not much, the
approximate equivalent of a gallon of gasoline. The tanks are
approved by the US Dept of Transportation and Transport Canada.

Various sources claim that 500 psi using the adsorption technology
will give the same storage as 3500 psi with standard CNG tanks.