2. Adsorption natural gas storage tank and filling process, ZL 99 1 0829 1.5 (authorized)
3. Technology and equipment for peak shaving by adsorption in gas supply network, ZL 99 1 06858.0 (authorized)
4. Efficient flexible pressure swing adsorption process, ZL 99 1 06859.9 (authorized)
5. Method for storing low-carbon hydrocarbons (such as natural gas and coalbed methane) by water-enhanced activated carbon, ZL 0141967.9 (authorized)
6. Compact adsorption tower small pressure swing adsorption oxygen plant, ZL 01141964.4 (authorized)
7. Pressure swing adsorption desulfurization with liquid-carrying membrane adsorbent, ZL 02117914. X (authorization)
8. Method for separating methane/nitrogen mixture with high surface activated carbon by pressure swing adsorption, ZL 02117916.6 (authorized)
9. Storage method of methane or methane-containing fuel, 200510016104.2 (for Trial Implementation)
10. Method and system for preparing pure hydrogen, 20061001515.3 (to be determined).