The use of activated carbon has been and still is common practice in deodorization installations, as it is one of the technologies that requires the lowest initial investment, as well as little maintenance. The current situation, in which the price of this raw material is rising steadily, has led to the search for new alternatives for chemical adsorbents that allows to eliminate or minimize the use of activated carbon, while maintaining or even improving its performance.

    This study aims to present alternatives to activated carbon and compare the filtration efficiency, both in capacity and reaction rate, for hydrogen sulfide, as well as their physical characteristics. The carbon footprints of each type of adsorbent being used will also be compared. The use of nearby raw materials, together with chemical engineering for the development of these new products, makes it possible to achieve better chemical adsorbents, less pollutants, more competitive prices and what is also important, more stable prices.

J. Balfagón; R. Geli; J. Hernández; N. Murillo

   Alphachem S.L. (Spain); GreenKeeper Iberia (Spain)

   Competing interests: The author has declared that no competing interests exist.

   Academic editor: Carlos N. Díaz.

   Content quality: This paper has been peer reviewed by at least two reviewers. See scientific committee here.

   Citation: J. Balfagón, R. Geli, J. Hernández, N. Murillo,  New and more environmentally efficient chemical adsorbents, 9th IWA Odour& VOC/Air Emission Conference, Bilbao, Spain, www.olores.org.

   Copyright: 2021 Olores.org. Open Content Creative Commons license. It is allowed to be downloaded, reused, reprinted, modified, distributed, and/or copy articles in olores.org website, as long as the original authors and source are cited. No permission is required from the authors or the publishers.

   ISBN: 978-84-09-37032-0

   Keywords: Filter media; activated carbon; activated alumina; activated alumina; zeolites; gas filtration; dry route.

Abstract

   The use of activated carbon has been and still is common practice in deodorization installations, as it is one of the technologies that requires the lowest initial investment, as well as little maintenance. The current situation, in which the price of this raw material is rising steadily, has led to the search for new alternatives for chemical adsorbents that allows to eliminate or minimize the use of activated carbon, while maintaining or even improving its performance. The rise in coal prices is mainly due to the cost of the actions taken by the countries of origin to improve the environment and transport costs. In Europe, the incorporation of these products into REACH legislation also produces significant associated costs. This study aims to present alternatives to activated carbon and compare the filtration efficiency, both in capacity and reaction rate, for hydrogen sulfide, as well as their physical characteristics. The carbon footprints of each type of adsorbent being used will also be compared. The use of nearby raw materials, together with chemical engineering for the development of these new products, makes it possible to achieve better chemical adsorbents, less pollutants, more competitive prices and what is also important, more stable prices.

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