Preparation of high specific surface area activated carbon using residual oil and waste PET

IF 5.5 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Carbon Letters Pub Date : 2024-04-20 DOI:10.1007/s42823-024-00734-0

Jin Chan Park, Dong Min Kim, Jong Dae Lee

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Abstract

The study investigated a method of synthesizing a pitch suitable for making activated carbon using fluid catalytic cracking-decant oil (FCC-DO), a high-purity carbon precursor from oil refining. We kept the reaction time and catalyst amount constant while varying the temperature to investigate its impact on pitch synthesis and the resulting physical and activation properties. Previous research established that materials added during pitch synthesis can affect the properties of both the pitch and resulting activated carbon. This study examined the addition of polyethylene terephthalate (PET) to FCC-DO-based pitch. The results indicated significant changes in properties with PET addition and temperature variation that ensured stable activated carbon quality. At temperatures of 390 °C or higher, the specific surface area of the activated carbon stabilized between 2680 and 2740 m²/g. Waste PET, a recyclable plastic, was chosen due to its compatibility and thermodynamic suitability for pitch synthesis. Importantly, adding PET didn't generate additional waste or degrade the physical properties of the activated carbon.

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利用残油和废 PET 制备高比表面积活性炭

本研究调查了一种利用流体催化裂化-沥青油（FCC-DO）合成适合制造活性炭的沥青的方法，FCC-DO 是一种来自炼油的高纯度碳前体。我们在改变温度的同时保持反应时间和催化剂用量不变，以研究其对沥青合成及其产生的物理和活化特性的影响。以往的研究表明，沥青合成过程中添加的材料会影响沥青和生成的活性炭的特性。本研究考察了在基于 FCC-DO 的沥青中添加聚对苯二甲酸乙二醇酯 (PET) 的情况。结果表明，随着 PET 的添加和温度的变化，其特性发生了显著变化，从而确保了活性炭质量的稳定性。在 390 °C 或更高温度下，活性炭的比表面积稳定在 2680 至 2740 m2/g 之间。选择废 PET（一种可回收塑料）是因为它与沥青合成的兼容性和热力学适应性。重要的是，添加 PET 不会产生额外的废物，也不会降低活性炭的物理特性。

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来源期刊

Carbon Letters CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

7.30

自引率

20.00%

发文量

118

期刊介绍： Carbon Letters aims to be a comprehensive journal with complete coverage of carbon materials and carbon-rich molecules. These materials range from, but are not limited to, diamond and graphite through chars, semicokes, mesophase substances, carbon fibers, carbon nanotubes, graphenes, carbon blacks, activated carbons, pyrolytic carbons, glass-like carbons, etc. Papers on the secondary production of new carbon and composite materials from the above mentioned various carbons are within the scope of the journal. Papers on organic substances, including coals, will be considered only if the research has close relation to the resulting carbon materials. Carbon Letters also seeks to keep abreast of new developments in their specialist fields and to unite in finding alternative energy solutions to current issues such as the greenhouse effect and the depletion of the ozone layer. The renewable energy basics, energy storage and conversion, solar energy, wind energy, water energy, nuclear energy, biomass energy, hydrogen production technology, and other clean energy technologies are also within the scope of the journal. Carbon Letters invites original reports of fundamental research in all branches of the theory and practice of carbon science and technology.