Characteristic and Performance of Ni, Pt, and Pd Monometal and Ni-Pd Bimetal onto KOH Activated Carbon for Hydrotreatment of Castor Oil

IF 1 Q4 CHEMISTRY, MULTIDISCIPLINARY Indonesian Journal of Chemistry Pub Date : 2024-02-01 DOI:10.22146/ijc.84640
W. Trisunaryanti, T. Triyono, I. Falah, Dwi Bagus Wicaksono, S. Sumbogo
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Abstract

The preparation of highly efficient hydrotreating catalysts has presented a significant challenge in the field of catalysis. In this study, chemically activated carbon (AC) was prepared using potassium hydroxide (KOH) as an activator and Merbau wood as a lignocellulosic source for the AC. The AC was then impregnated with mono-metallic species (nickel, platinum, and palladium) as well as a bimetallic NiPd combination. The results revealed that the optimal KOH impregnation weight ratio was determined to be 2:1, resulting in a remarkably high iodine value of 751.94 mg/g. Subsequently, AC was employed as a support material for the hydrotreating of castor oil. Among the catalysts tested, the NiPd/AC catalyst demonstrated superior performance, yielding a liquid fraction comprising 88.80 wt.%. Within this fraction, C5-C12 hydrocarbons accounted for 15.16 wt.%, alcohol compounds constituted 71.69 wt.%, while the remaining 0.87 wt.% consisted of other components. Furthermore, the NiPd/AC catalyst exhibited remarkable stability, as its performance remained largely unchanged even after being used three times consecutively. This finding suggests that coking had minimal impact on the active sites of the mentioned catalyst, indicating its robustness and potential for prolonged application.
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用于蓖麻油加氢处理的 KOH 活性炭上的镍、铂、钯单金属和镍钯双金属的特性和性能
高效加氢处理催化剂的制备是催化领域的一项重大挑战。本研究以氢氧化钾(KOH)为活化剂,以木质纤维素为原料,制备了化学活性炭(AC)。然后用单金属(镍、铂和钯)以及双金属镍钯组合浸渍活性炭。结果表明,最佳的 KOH 浸渍重量比为 2:1,因此碘值高达 751.94 mg/g。随后,AC 被用作蓖麻油加氢处理的支撑材料。在测试的催化剂中,NiPd/AC 催化剂表现出卓越的性能,可产生 88.80 重量百分比的液体馏分。其中,C5-C12 碳氢化合物占 15.16%,醇类化合物占 71.69%,其余 0.87% 为其他成分。此外,NiPd/AC 催化剂表现出显著的稳定性,即使连续使用三次,其性能也基本保持不变。这一发现表明,结焦对上述催化剂活性位点的影响微乎其微,这表明催化剂具有长期应用的稳定性和潜力。
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来源期刊
Indonesian Journal of Chemistry
Indonesian Journal of Chemistry CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
2.30
自引率
11.10%
发文量
106
审稿时长
15 weeks
期刊介绍: Indonesian Journal of Chemistry is a peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication in all areas of chemistry, including educational chemistry, applied chemistry, and chemical engineering.
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