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Effect of Additional Polyethylene Glycol and Citric Acid on Characteristics of NiMo/g-Al2O3 Catalyst in Light Cycle Gas Oil Hydrodesulfurisation

1Department of Chemistry, Faculty of Science and Technology, UIN Syarif Hidayatullah Jakarta, Jl. Ir. H. Juanda No. 95 Ciputat Tangerang Selatan 15412, Indonesia

2Catalyst and Materials, Research and Technology Innovation (RTI), Direktorat SPPU, PT Pertamina (Persero), Jalan Raya Bekasi Km 20, Pulogadung, Jakarta, Indonesia

3Integrated Laboratory Centre, Faculty of Science and Technology, UIN Syarif Hidayatullah Jakarta, Jl. Ir. H. Juanda No. 95, Ciputat, Tangerang Selatan 15412, Indonesia

Received: 4 Jan 2023; Revised: 16 Apr 2023; Accepted: 17 Apr 2023; Available online: 18 Apr 2023; Published: 30 Apr 2023.
Editor(s): Istadi Istadi
Open Access Copyright (c) 2023 by Authors, Published by BCREC Group
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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Sulfur is an impurity in diesel that causes low product quality and environmental pollution. Therefore, a catalyst is needed in the profound hydrodesulfurization (HDS) reaction to produce diesel fuel with low sulfur content. The catalyst synthesized in this work was NiMo/g-Al2O3 with the addition of PEG (2%, 4%, 6%) (w/w) and CA (1%, 2%, and 4%) (w/w). The catalyst was synthesized using the dry impregnation method with a metal concentration of 3% NiO and 15% MoO3. The obtained catalysts were characterized using X-Ray Fluorescence (XRF), X-Ray Diffraction (XRD), and Surface Area Analyzer (SAA). This work acquired the best catalyst characteristics for the HDS process by adding 2% PEG and 1% CA with a concentration of 3.19% NiO and 13.98% MoO3. The surface area, pore volume, and diameter are 181.655 m2/g, 0.50 cm3/g, and 110.51 Å, respectively. The catalyst activity satisfies Euro V standards at 345 ℃ with a sulfur content of 9.55 ppm, and the sulfur conversion (HDS) is 98.75%. The density and cetane index of the obtained diesel fuel was 0.798 g/mL and 53.6, respectively. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (


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Keywords: PEG; Polyethylene Glycol; Citric Acid; Hydrodesulfurization; NiMo/g-Al2O3; Light Cycle Gas Oil
Funding: PT. Pertamina (Persero)

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