SEPURAN® Noble membranes range
SEPURAN® Noble membranes range
Press release
May 18, 2022

Helium purificatoin

SEPURAN® Noble membrane was adopted as a purification device that efficiently recovers and concentrates helium exhausted during the semiconductor manufacturing process.

Separation membrane for collecting rare gas, SEPURAN® Noble, was adopted for Air Water Group Co., Ltd. [hereinafter referred to as AWP] (Head Office: Osaka, President: Shigeki Otsuka). This helium purification unit has already started operation at a major semiconductor manufacturer in Japan, and as a device for efficiently recovering and refining helium gas exhausted from the manufacturing process, it has a high reputation for performance from end users.

While helium gas is a rare gas with a tight supply worldwide, it is widely used in the semiconductor, electronic, medical fields, etc. in Japan, and it is an important rare resource that always raises depletion problems. SEPURAN ® Noble have already been adopted overseas in purification units that collect, refine, and reuse helium gas released during the optical fiber delineation process, and this is the first time in Japan that they have been adopted in the semiconductor field.

 Compared to other separation technologies, membrane separation requires less energy for operation, so running costs are cheaper, and the cost can be reduced with compact equipment with a small installation area with simple operation. On the other hand, there are still few highly selective membrane materials for gas separation on the market, and there has been no opportunity for membrane separation technology to be adopted.As an expert in specialty chemicals, Evonik has succeeded in commercializing SEPURAN® Noble using polymer materials with excellent gas separation performance with a consistent development system from materials to film materials.

Polyplastics-Evonik will continue to provide detailed technical support to our customers with the aim of realizing a sustainable society.

About Polyplastics-Evonik

Polyplastics-Evonik was established in 1970 as a joint venture between Evonik Japan Co., Ltd. and Daicel Corporation, and has created excellent functional resins such as nylon 12 resins and transparent nylons. In recent years, we have also been able to handle a wide variety of products such as C8&C12 oil cyclic compounds, PMMA resins, ultra-heat-resistant resins, peek, etc. In order to deliver products with higher added value to customers, we are constantly striving to improve quality and strengthen our service system with new perspectives and ideas. In December 2021, Daicel Co., Ltd. transferred its shareholding to Polyplastics Corporation a wholly owned subsidiary. Accordingly, from April 1, 2022, we changed our name to Polyplastics-Evonik Corporation.

About Evonik Industries AG

Evonik is one of the world leaders in specialty chemicals. The company is active in more than 100 countries around the world and generated sales of €15 billion and an operating profit (adjusted EBITDA) of €2.38 billion in 2021. Evonik goes far beyond chemistry to create innovative, profitable and sustainable solutions for customers. About 33,000 employees work together for a common purpose: We want to improve life today and tomorrow.

About Smart Materials

The Smart Materials division includes businesses with innovative materials that enable resource-saving solutions and replace conventional materials. They are the smart answer to the major challenges of our time: environment, energy efficiency, urbanization, mobility and health. The Smart Materials division generated sales of around €3.24 billion in 2020 with about 7,900 employees. 


In so far as forecasts or expectations are expressed in this press release or where our statements concern the future, these forecasts, expectations or statements may involve known or unknown risks and uncertainties. Actual results or developments may vary, depending on changes in the operating environment. Neither Evonik Industries AG nor its group companies assume an obligation to update the forecasts, expectations or statements contained in this release.