Liquid and compressed natural gas dispensing system

A method of dispensing a cryogenic gas and a cryogenic liquid comprising the steps of:

• a) providing a supply of liquid in a bulk tank;
• b) providing a liquid storage tank, a pressurizing cylinder and a gas storage cylinder;
• c) transferring the liquid to the liquid storage tank;
• d) vaporizing liquid from the bulk tank so as to produce a gas;
• e) transferring a portion of the gas to the gas storage cylinder and another portion of the gas to the pressurizing cylinder;
• f) transferring another portion of the gas to the liquid storage tank to condition the liquid therein;
• g) dispensing conditioned liquid from the liquid storage tank using gas from the pressurizing cylinder to pressurize the liquid storage tank;
• and
• h) simultaneously dispensing gas from the gas storage cylinder.

A system for dispensing cryogenic fluids comprising:

• a) a bulk tank containing a supply of cryogenic liquid;
• b) a pump in communication with the bulk tank;
• c) a vaporizer selectively in communication with the pump, said vaporizer receiving cryogenic liquid from the bulk tank via the pump so that a cryogenic gas is produced;
• d) a CNG module including a bank of cascaded storage cylinders selectively in communication with the vaporizer so as to receive gas therefrom for later dispensing;
• and
• e) an LNG module separate and distinct from the CNG module including:
• i. a storage tank selectively in communication with the bulk tank so as to receive cryogenic liquid therefrom and selectively in direct communication with the vaporizer to receive cryogenic gas therefrom to condition the cryogenic liquid in the storage tank;
• ii. a pressurizing cylinder selectively in communication with the vaporizer so as to receive cryogenic gas therefrom, said pressurizing cylinder pressurizing said storage tank with gas so that the liquid in the storage tank may be dispensed therefrom as gas is simultaneously dispensed from the bank of cascaded storage cylinders.