Preparation of adsorbents from sewage sludge pyrolytic char by carbon dioxide activation
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- 作者：Jon Alvarez ; Gartzen Lopez ; Maider Amutio ; Javier Bilbao ; Martin Olazar ; martin.olazar@ehu.es.es" class="auth_mail" title="E-mail the corresponding author
- 关键词：Adsorbent ; Char ; Sewage sludge ; Carbon dioxide activation ; Acid washing ; Ash removal
- 刊名：Process Safety and Environmental Protection
- 出版年：2016
- 出版时间：September 2016
- 年：2016
- 卷：103
- 期：part_PA
- 页码：76-86
- 全文大小：2122 K
文摘
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Sewage sludge char is valorized for the production of adsorbents.
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HCl and Na2CO3 sequential washing steps to extract most of the ashes.
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Lower inorganic content favors the accessibility of CO2 into the pores network.
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Maximum BET surface area (440 m2 g−1) is attained after 15 min of activation.
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Promising results for the viability of sewage sludge flash pyrolysis.