Abstract: The present invention provides thermoelectric composite materials that comprise a physical mixture of semiconducting polymers and carbon nanotube structures. The present invention further provides a process to improve the thermoelectric power factor of the composite by doping with inorganic salts.

Abstract: The present invention discloses a process for the dissociation of natural gas hydrates comprises injecting additives or hydrate dissociation promoters into the system at the hydrate dissociation temperatures ranging from 283-293 K in conjunction with or without first depressurizing the system to pressures (50%-75%) below the hydrate equilibrium pressure and such leading to the recovery of methane or natural gases.

Abstract: The present invention relates to a fixed bed hypersorber having moving ports for injecting and withdrawing fluids which can be used for fractionation of gaseous mixtures in a fixed bed filled with absorbents/adsorbents, where separation is brought about by contacting gaseous mixture in a counter-current fashion. The moving ports may take the form of pistons or pairs of tubes arranged concentrically, where one of the tubes has a straight slot and the other tube has a helical slot. Rotation of the tubes with respect to each other produces the moving port.

Abstract: The present invention relates to a fixed bed hypersorber having moving ports for injecting and withdrawing fluids which can be used for fractionation of gaseous mixtures in a fixed bed filled with absorbents/ adsorbents, where separation is brought about by contacting gaseous mixture in a counter-current fashion. The moving ports may take the form of pistons or pairs of tubes arranged concentrically, where one of the tubes has a straight slot and the other tube has a helical slot. Rotation of the tubes with respect to each other produces the moving port.