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硫化在从固体纤维化消化物中提取的活性碳材料上的吸附

Evangelia Choleva^1,2,3, Anastasios Mitsopoulos^1,4, Georgia Dimitropoulou¹

¹QLAB Private Company, Research & Development, Quality Control and Testing Services, 57008 Thessaloniki, Greece.

Materials (Basel, Switzerland)

|July 29, 2023

概括

研究人员从生物气废弃物中开发了可持续吸附剂,用于高效的生物气净化和脱硫. 优化的活性炭实现了高表面积,使有效的CO2/CH4分离和生物甲生产成为可能.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
环境科学环境科学

背景情况:

生物气生产产生固体纤维化消化物 (SFD),是一种潜在的废物流.
生物气的升级需要有效的CO2/CH4分离和H2S去除 (脱硫).
活性炭 (AC) 是有效的吸附剂,但需要可持续的生产方法.

研究的目的:

建立一个可持续的价值链,从SFD碳酸吸附剂.
为整合生物气体脱硫和升级 (CO2/CH4分离) 优化交流系统.
从生物气中生产高纯度生物甲.

主要方法:

物理和化学激活SFD衍生生物炭 (BC) 以产生微等孔ACs.
对于BET表面积和孔积的ACs的表征.
气体突破实验使用实物沼气在固定床柱在不同的温度.

主要成果:

产生了具有高BET表面积 (590-2300 m2g-1) 和孔隙体积 (0.57-1.0 cm3g-1) 的AC.
物理激活的交流电池适用于生物气的升级 (CO2/CH4分离).
在生物气体脱硫过程中,化学激活的交流气体是有效的,在50°C时具有最佳的H2S吸附.

结论:

从生物气厂废物 (SFD) 产生AC的可持续途径被证明.
优化的AC可促进高效的生物气脱硫和升级为高纯度生物甲.
温度在平衡H2S吸附和气体扩散动力学方面起着至关重要的作用.

关键词:

活性炭活性炭的使用方法生物气体是一种生物气体.二氧化碳是二氧化碳的一种物质.硫化是硫化的一种物质.介质孔 (Mesopores) 是一个介质孔.微孔是一种微孔.物理吸附 - 物理吸附这是一种固体纤维化消化剂.

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