Eka Chemicals takes further legal action to enforce its patent rights

19-Nov-2001
Arnhem, The natural gas consumption in winter is 5 times higher than in summer. In order to meet this peak demand, Gaz de France stores part of the imported gas underground during the summer period. I winter time, the gas will be reclaimed and must be dried before use. The formed process water contains organic compounds such as benzene and TetraHydro Thiophene; THT gives the gas the typical odour. This water cannot be released to the environment and up till now thousands of tons have been incinerated. As part of their environmental and sustainable development policy, Gaz de France evaluated the available technologies to treat the process water. They have choosen the Akzo Nobel MPPE (Macro Porous Polymer Extraction) technology for the Germigny-sous-Coulombs site. Gaz de France has made an agreement with Akzo Nobel MPP Systems® to deliver a turnkey MPPE unit with a performance and service guarantee for the total operational lifetime of the unit. The start up of the MPPE-unit was in October 2001. Akzo Nobel MPP Systems units are in operation in Germany, the Netherlands and the USA, both on and offshore. MPP Systems® is a new business activity of Akzo Nobel´s business unit Eka Chemicals that develops, markets and services separation technologies of organic compounds in all types of water streams. The MPPE system is a patented technology using a Macro Porous Polymer filled with an extraction liquid to efficiently remove aliphatic, aromatic, polyaromatic and chlorinated hydrocarbons from waste water, process water and ground water.

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