Application of Amine-Functionalized Cellulose Foam for CO2 Capture and Storage in the Brewing Industry

• 作者: Bernd Rosemann Christoph Bauer Franziska Strube Julia Gensel Lars Helmlinger Stefan Thater Thomas Neumeyer Volker Altstadt Yejun Zhu
• 来源期刊: 可再生材料杂志(英文)
• 学科: 经济
• 关键词: CO2 CAPTURE carbon CAPTURE poly(ethylenimine) CELLULOSE adsorption
• 年，卷（期）: kzsclzzyw_2018,（3）
• 页码范围: 219-225
• 页数: 7页
• 分类号: F42

摘要

Due to a lack of technology,smaller breweries simply dump excess CO2 into the atmosphere,fueling the greenhouse effect and global warming.State-of-the-art CO2 capture technologies using nanofibrillated cellulose are expensive and require laborious freeze-drying.Consequently,there is a high demand for affordable alternatives in order to reduce the environmental impact in this industry sector.This work describes a novel route for a quick and cost-efficient synthesis of amine-functionalized cellulose pellets by a surfactantassisted steam explosion process.Typical values with this method were porosity of 92%and density of 67 g/cm^3.Investigations on polyethylenimine(PEI)content and distribution revealed a maximum PEI concentration of 20 wt%with decreasing concentration to the core of a pellet.Sufficient stability against brewery exhaust gas was determined and CO2 release at~120℃ could be confirmed.Capacity tests under simulated working conditions with a novel laboratory reactor yielded a CO2 capacity of 1.0 mmol/g or 67 mol/m^3,which is comparable to values known from the literature for other cellulose-based adsorbents.