Environmental Engineering Department, Engineering and Natural Sciences Faculty, Konya Technical University, Konya, Turkey.
Mining Engineering Department, Engineering and Natural Sciences Faculty, Konya Technical University, Konya, Turkey.
Biodegradation. 2024 Oct;35(6):907-938. doi: 10.1007/s10532-024-10088-z. Epub 2024 Jul 1.
Evaluating industrial wastes in the system with minimum preprocessing and generation economically valuable products from them have critical importance. In this regard, especially cheap, wieldy, and readily available catalysts have been researched to increase variety of useful products in pyrolysis systems, to reduce process time, and to increase quality and diversity of products. Therefore, in this study, marble sludge (named K1) was evaluated as catalyst at different dosages (10%, 20%, 30%, 50%) and pyrolysis temperatures (300, 500, 700 °C) in olive pomace (OP) pyrolysis and; the potential green applications of produced new biochars at new usage areas with different purposes based on characteristics were investigated. ANOVA test results showed that temperature and catalysts ratio had significant effect on pyrolysis product yields since significance value for K1 and temperature was lower than 0.05 for pyrolysis products. OP-K1 biochars had alkaline properties and high earth metal quantities. Moreover, increment in K1 ratio and temperature resulted in decrement of the biochar surface acidity. Therefore, it can be indicated that these biochars can have a potential usage for anaerobic digestion processes, lithium-ion batteries, and direct carbon solid oxide fuel cell (DC-SOFC) but further electrochemical property test should be performed. Moreover, produced biochars can be alternative fuels in some processes instead of coal since they have low S content and high heat values. Consequently, it is foreseen that produced biochars will have an important place in the development of potential usage areas with a new and environmentally friendly approach in different areas apart from the conventional uses of catalytic pyrolysis chars.
在系统中评估工业废物并从其中生成具有经济价值的产品具有重要意义。在这方面，特别是廉价、易处理和易得的催化剂已被研究用于增加热解系统中有用产品的种类、缩短反应时间、提高产品的质量和多样性。因此，在这项研究中，研究了大理石污泥（命名为 K1）在不同剂量（10%、20%、30%、50%）和热解温度（300、500、700°C）下作为橄榄渣（OP）热解催化剂的性能，并基于特性研究了新生物炭在不同用途新领域的潜在绿色应用。方差分析结果表明，温度和催化剂比例对热解产物收率有显著影响，因为 K1 和温度的显著性值低于热解产物的 0.05。OP-K1 生物炭呈碱性，含有大量的地球金属。此外，K1 比例和温度的增加导致生物炭表面酸度降低。因此，可以表明这些生物炭可用于厌氧消化过程、锂离子电池和直接碳固体氧化物燃料电池（DC-SOFC），但需要进行进一步的电化学性能测试。此外，由于其低硫含量和高热值，所制备的生物炭可以替代煤炭作为某些工艺中的替代燃料。因此，可以预见，所制备的生物炭将在不同领域的潜在用途开发中占据重要地位，为环境友好的新方法开辟道路，除了催化热解炭的传统用途之外。
