PickensPlan

Fueling with Natural Gas

The cheapest way to refuel with natural gas is usually at a public station run by a gas utility.  Public CNG stations are often few and far between so the alternative for fleets is to install their own on-site fuelling station.  For more information, see the following pages:

If I've missed any tank or station manufacturers, let me know.


Tags: CNG, LNG, fleets, fueling

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Permalink Reply by Jeff Benefield on March 22, 2011 at 9:17pm

It takes a plan. Pickens plan depends on government. Big mistake.

Simple.

LNG distributors install a dozen LNG filling stations FREE OF CHARGE at current GAS stations on each end of a major commute. Say... Malibu/LA, right off the interstate on each end. Offer to convert local taxi cabs, and city and county vehicles AT COST.

This does two things.. It makes LNG convenient by putting it on both ends of a regular MAJOR commute and the savings in fuel costs will pay for their conversion back in their pockets. Californians will sometimes do things just to show the world how "eco-friendly" they are.. and  ALL municipalities are looking at ways to save money. think about how many police, fire, and city service vehicles LA uses alone!! That would sell a lot of LNG!!!!!!!!!!

Once this payed for itself, take the profits from that one to set up another one in NYC/'New Jersey....

I would think a LNG association would pool their money to set up LNG hubs across the country. Big cities first, smaller cities later..

Permalink Reply by Kim Nesvig on April 29, 2011 at 10:16am

CNG is a fine transportation fuel.   It can be even more widely available and accepted if vehicle range can be extended and the fueling costs reduced.   Dr Richard Wool of U Del. and his colleagues have developed an absorptive medium (carbonized chicken feathers!!!) that has been demonstrated to dramatically increase the capacity for CNG and H storage at lower pressures (25 bar or about 400 psi) and much lower cost than other absorptive media.   We need to encourage commercialization of this technology NOW!

 

learn more at:  www.sciencedaily.com/releases/2009/06/090623120833.htm

 

 

Permalink Reply by SJC on April 29, 2011 at 9:40pm

Activated carbon and other adsorbers work fine as well. The one caveat is that you need to have clean methane.

Not the dirty stuff that comes out of the pipe, but clean of propane and other things left in the gas. That means

that it must be purified before putting it in the adsorbed tank, or the adsorption will not work properly. 

Permalink Reply by Robert Machuta on May 16, 2011 at 7:11pm

What did Osama Bin Laden have that most Americans need but D'ONT have?

 

A CNG service station within walking distance of his home.

Permalink Reply by Frank on July 14, 2011 at 7:09pm

[This is reply to Neil Cox's post of July 14 at around 5:15 pm.]

I think you are bit confused.  Natural gas (mainly methane or CH4) can be a solid, liquid, or vapor depending upon its pressure and temperature.  When methane is cooled to -258.9 °F (-161.6 °C), it is a liquid with a saturation pressure of 0 psig.  That is equivalent to water at 212 °F and is the same principle that allows water to boil at lower temperatures at higher elevations.  A little bit of heat (16 BTU/lb) will increase liquid methane from -260 °F to -245 °F.  Remember, 1 BTU is defined to be the amount of energy required to raise 1 lb of water 1 °F.  The maximum allowable working pressure (MAWP) of an LNG tank is 230 psig, which has a saturation temperature of around -169 °F.

When methane is cooled to -260 °F, it will be a clear liquid much like propane at -44 °F (-42.2 °C).  See Propane @ -43°C video.  The Westport HD GX fuel system only designed to supply high pressure natural gas to the natural gas injectors much like the diesel fuel system only supplies high pressure diesel fuel to the diesel injectors.  There is no way that a trucker would hook up a CNG dispenser to his engine even it were theoretically possible. However, the refueling station can very easily create CNG from LNG because it is very easy to pressurize a liquid because liquids are essentially  incompressible.  Once pressurized, heat can be added to vaporize 3600 psi liquid natural gas to convert it to 3600 psi compressed natural gas.  CNG from pipeline natural gas is much more expensive to produce than from LNG because of the huge amount of power required to compress a gas, which is one reason why CNG stations are so expensive to build and operate.

Permalink Reply by Robert S Culpepper on June 30, 2012 at 12:01am

Universal Air Products of Virginia makes a vehicle refueling system  UR40E-10.  It runs on house current.

 

www.uapc.com

info@uapc.com

 

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