Evaluation Of Liquefied Petroleum Gas (LPG) Quality Conformity Based On Hydrocarbon Composition And Ethyl Mercaptan Content With Reference To The Directorate General Of Oil And Gas Standard

Anindya Nada Salsabila; Futi Kusuma Hati; Meyliana Wulandari; Setia Budi; Garnis Fithawati

doi:10.21009/JRSKT.092.11

Authors

Anindya Nada Salsabila Chemistry Study Program, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jl. Rawamangun Muka Raya, East Jakarta 13220, Indonesia
Futi Kusuma Hati Chemistry Study Program, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jl. Rawamangun Muka Raya, East Jakarta 13220, Indonesia
Meyliana Wulandari Chemistry Study Program, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jl. Rawamangun Muka Raya, East Jakarta 13220, Indonesia
Setia Budi Chemistry Study Program, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jl. Rawamangun Muka Raya, East Jakarta 13220, Indonesia
Garnis Fithawati Center for Testing of Oil and Gas (BBPMGB) LEMIGAS, Jl. Ciledug Raya Kav. 109, Kebayoran Lama, South Jakarta 12230, Indonesia

DOI:

https://doi.org/10.21009/JRSKT.092.11

Keywords:

ethyl mercaptan, gas chromatography-flame ionization detector, hydrocarbon composition, liquefied petroleum gas (LPG)

Abstract

Liquefied Petroleum Gas (LPG) is a major energy source in Indonesia’s household, commercial, and industrial sectors; therefore, its quality must be controlled to ensure combustion performance and user safety. This study evaluated the hydrocarbon composition and ethyl mercaptan content of LPG samples and their conformity with the Decree of the Director General of Oil and Gas No. 116.K/10/DJM/2020. Five mixed-LPG samples were analysed at the Gas Composition Laboratory of BBPMGB LEMIGAS. Hydrocarbon composition (C₂–C₅) was determined by Gas Chromatography–Flame Ionization Detector (GC-FID) according to ASTM D2163, while ethyl mercaptan content was measured using a length-of-stain gas detector tube following ASTM D5305. The GC-FID system was verified using a Certified Reference Material (CRM), and all thirteen measured components were within the CRM acceptance ranges, confirming instrument suitability. Samples 1 and 2 complied with the C₂ limit (max 0.80 %vol), while Samples 3, 4, and 5 exceeded the limit with values of 0.9300, 0.8510, and 1.0281 %vol, respectively. All samples met the C₃+C₄ and C₅+ requirements. Ethyl mercaptan contents of Samples 1–4 (1.8–3.9 lb/10,000 AG) met the minimum requirement, whereas Sample 5 did not (0.96 lb/10,000 AG). Overall, only Samples 1 and 2 satisfied all tested parameters, indicating that LPG quality evaluation requires multiple quality parameters.

References

- International Energy Agency, I. (2023). World Energy Outlook 2023. www.iea.org/terms

Amin, M. S., Ibrahim, N., & Zakaria, Z. (2023). Minimising Butadiene Level in Liquefied Petroleum Gas (LPG) via Non-Stirred Blending with Numerical Approach. Malaysian Journal of Fundamental and Applied Sciences, 19(2), 129–141. https://doi.org/10.11113/mjfas.v19n2.2618

ASTM International. (2023a). Standard Test D5305 Method for Determination of Ethyl Mercaptan in LP-Gases.

ASTM International. (2023b). Standard Test Method D2163 for Determination of Hydrocarbons in Liquefied Petroleum (LP) Gases and Propane/Propene Mixtures by Gas Chromatography.

Coutinho, D. M., França, D., Vanini, G., Gomes, A. O., & Azevedo, D. A. (2022). Understanding the molecular composition of petroleum and its distillation cuts. Fuel, 311, 122594. https://doi.org/https://doi.org/10.1016/j.fuel.2021.122594

Dabo Jnr, K., Amorin, R., Amoah, C., & Nanasei Owusu-Afriyie, L. (2022). A Comparative Analysis of Physio-Chemical Properties of Local and Imported LPG on the Ghanaian Market. 12, 2022. https://doi.org/10.37591/JoPET

Directorate General of Oil and Gas. (2020). Kepdirjen-Standar-&-Mutu-Spesifikasi-BBG-Jenis-Liquefied-Petroleum-Gas-yg-Dipasarkan-didalam-Negeri (2).

Esfandiari, K., Banihashemi, M., Mokhtari, A., & Soleimani, P. (2021). Experimental investigation of influencing parameters on natural gas odor fading in gas distribution networks. Journal of Natural Gas Science and Engineering, 95, 104191. https://doi.org/https://doi.org/10.1016/j.jngse.2021.104191

Harold M. McNair, J. M. M. N. H. S. (2019). INTRODUCTION. In Basic Gas Chromatography (pp. 1–14). https://doi.org/https://doi.org/10.1002/9781119450795.ch1

Kaplitz, A. S., & Schug, K. A. (2023). Gas chromatography—vacuum ultraviolet spectroscopy in petroleum and fuel analysis. In Analytical Science Advances (Vol. 4, Numbers 5–6, pp. 220–231). John Wiley and Sons Inc. https://doi.org/10.1002/ansa.202300025

Lelevic, A., Geantet, C., Moreaud, M., Lorentz, C., & Souchon, V. (2021). Quantitative Analysis of Hydrocarbons in Gas Oils by Two-Dimensional Comprehensive Gas Chromatography with Vacuum Ultraviolet Detection. Energy & Fuels, 35(17), 13766–13775. https://doi.org/10.1021/acs.energyfuels.1c01910

Michanowicz, D. R., Leventhal, O. M., Domen, J. K., Williams, S. R., Lebel, E. D., Hill, L. A. L., Buonocore, J. J., Nordgaard, C. L., Bernstein, A. S., & Shonkoff, S. B. C. (2023). Natural gas odorants: A scoping review of health effects. In Current Environmental Health Reports (Vol. 10, Number 3, pp. 337–352). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/s40572-023-00403-w

Nofrizal, N., Rosmayati, L., & Andriani, Y. (2022). A Rapid Gas Chromatography Method For Simultaneous Determination Of Lpg Compounds. Scientific Contributions Oil and Gas, 36(3), 145–151. https://doi.org/10.29017/SCOG.36.3.772

Oke, D. O., Fakinle, B. S., Sonibare, J. A., & Akeredolu, F. A. (2020). Evaluation of emission indices and air quality implications of liquefied petroleum gas burners. Heliyon, 6(8). https://doi.org/10.1016/j.heliyon.2020.e04755

Paczuski, M., Marchwiany, M., Pulawski, R., Pankowski, A., Kurpiel, K., & Przedlacki, M. (2016). Liquefied Petroleum Gas (LPG) as a Fuel for Internal Combustion Engines. In Alternative Fuels, Technical and Environmental Conditions. InTech. https://doi.org/10.5772/61736

Puzzolo, E., Zerriffi, H., Carter, E., Clemens, H., Stokes, H., Jagger, P., Rosenthal, J., & Petach, H. (2019). Supply Considerations for Scaling Up Clean Cooking Fuels for Household Energy in Low- and Middle-Income Countries. In GeoHealth (Vol. 3, Number 12, pp. 370–390). John Wiley and Sons Inc. https://doi.org/10.1029/2019GH000208

Qian, X., Zhang, R., Zhang, Q., Yuan, M., & Zhao, Y. (2021). Cause Analysis of the Large-Scale LPG Explosion Accident Based on Key Investigation Technology: A Case Study. ACS Omega, 6(31), 20644–20656. https://doi.org/10.1021/acsomega.1c02837

Seguel, R. J., Mancilla, C. A., & Sakamoto, P. A. (2018). Continuous measurement of odorant composition for liquefied petroleum gas. Chemical Engineering Transactions, 68, 331–336. https://doi.org/10.3303/CET1868056

Shahin, A. M., Ghallab, A. O., & Soliman, A. (2020). Increasing LPG production by adding volatile hydrocarbons to reduce import gap in Egypt. Journal of Petroleum Exploration and Production Technology, 10(8), 3733–3750. https://doi.org/10.1007/s13202-020-01004-1

Shen, G., Hays, M. D., Smith, K. R., Williams, C., Faircloth, J. W., & Jetter, J. J. (2017). Evaluating the Performance of Household Liquefied Petroleum Gas Cookstoves. Environmental Science & Technology, 52(2), 904–915. https://doi.org/10.1021/acs.est.7b05155

Shuard, A. M., Mahmud, H. B., & King, A. J. (2017). An optimization approach to reduce the risk of hydrate plugging during gas-dominated restart operations. Journal of Petroleum Science and Engineering, 156, 220–234. https://doi.org/10.1016/j.petrol.2017.05.024

Speight, J. G. (2019). The Chemistry and Technology of Petroleum.

Suryo, T. A., Setiawan, I. D., Afnita, D., & Redjeki, A. S. (2023). PERBANDINGAN KOMPOSISI HIDROKARBON LIQUEFIED PETROLEUM GAS ANTARA SAMPEL LPG DI KILANG, SPBE DAN AGEN MENGGUNAKAN GC - LPG. 12(1).

Thiele, V., Monsé, C., Hoffmeyer, F., Brüning, T., Bünger, J., & Sucker, K. (2023). Indoor air quality – An overview of methods for measuring odor detection thresholds of single substances. Respiratory Physiology & Neurobiology, 315, 104108. https://doi.org/10.1016/j.resp.2023.104108

Zuas, O., Budiman, H., & Mulyana, M. R. (2016). Analytical method validation of GC-FID for the simultaneous measurement of hydrocarbons (C2-C4) in their gas mixture. Revista Colombiana de Química, 45(3), 22. https://doi.org/10.15446/rev.colomb.quim.v45n3.58085