Abstract: A system for transporting compressed gas aboard a ship includes: a) tanks aboard the ship adapted for carrying the compressed gas; b) a zeolite material in each of the tanks, the zeolite material adapted for adsorption of the gas into pore spaces of the zeolite material; and c) connection means for connecting the tanks to sources for receiving and dispensing the gas. A method for transportation of natural gas aboard a ship, comprising: a. providing a plurality of tanks on board the ship; b. putting a zeolite material in the tanks; c. connecting gas delivery tubes to the tanks; d. introducing the gas into the tanks under pressure until a desired pressure is reached; and e. after the ship reaches its desired destination, connecting gas delivery tubes to the tanks, and discharging the gas from the tanks.