Analisa Jejak Karbon Produk Pada Industri Gas Bumi Dengan Metode Life Cycle Assessment (LCA)

Purwaningrum, Yudit Ratania (2026) Analisa Jejak Karbon Produk Pada Industri Gas Bumi Dengan Metode Life Cycle Assessment (LCA). Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Perusahaan XYZ yang berlokasi di Kabupaten Bojonegoro merupakan jenis industri eksplorasi dan produksi minyak dan gas. Proses produksi sales gas di PT XYZ menghasilkan berbagai dampak pada kajian LCA diantaranya global warming, terrestrial acidification serta freshwater eutrophication yang dihasilkan dari proses produksi dan beberapa peralatan seperti Generator Turbin Gas (GTG), Acid Gas Recovery Unit (AGRU), Membrane Permeate Incinerator (MPI). Peningkatan produksi berdampak pada meningkatnya konsumsi bahan bakar, energi, serta bahan baku yang pada akhirnya menambah emisi. Oleh karena itu, identifikasi dan evaluasi dampak produksi sales gas perlu dilakukan dengan pendekatan Life Cycle Assessment (LCA). Penelitian ini dilakukan untuk menilai potensi dampak lingkungan dari unit operasi produksi sales gas dengan pendekatan cradle to gate, dimana sales gas menjadi produk utama. Analisis menggunakan metode Life Cycle Assessment (LCA) melalui aplikasi Simapro. Tahapan LCA mencakup penetapan tujuan dan ruang lingkup, inventarisasi siklus hidup (LCI), penilaian dampak (LCIA), serta interpretasi data. Penilaian dilakukan dengan metode ReCiPe 2016 pada level midpoint. Selain itu, analisis ketidakpastian diterapkan guna meningkatkan kualitas data LCA dengan menilai kualitas inventarisasi dan menentukan distribusi probabilitas melalui simulasi Monte Carlo. Hasil analisa LCA beserta analisa ketidakpastian dijadikan dasar dalam penyusunan skenario penurunan dampak lingkungan. Proses produksi 1 m3 sales gas berkontribusi terhadap dampak global warming sebesar 3,22 kg CO2 eq , terrestrial acidification sebesar 0,008 kg SO2 eq serta freshwater eutrophication sebesar 0,0003 kg P eq. Hasil penelitian menunjukkan bahwa Gas Turbin Generator (GTG) dan Dew Point Control Unit merupakan hotspot utama, sehingga strategi efisiensi energi dan pengendalian emisi pada unit tersebut perlu diprioritaskan untuk menurunkan dampak lingkungan. Skenario efisiensi energi pada Gas Turbin Generator (GTG) berpotensi menurunkan GWP sekitar 1,3% sedangkan Dew Point Control Unit sekitar 0,1-0,2%. =======================================================================================================================================
Company XYZ, located in Bojonegoro Regency, operates in the oil and gas exploration and production industry. The sales gas production process at Company XYZ generates several environmental impacts identified in the LCA study, including global warming, terrestrial acidification, and freshwater eutrophication, which from production activities and equipment such as the Gas Turbine Generator (GTG), Acid Gas Recovery Unit (AGRU), and Membrane Permeate Incinerator (MPI). Increased production leads to higher consumption of fuel, energy and raw materials, ultimately resulting in greater emissions. Therefore, the identification and evaluation of environmental impacts from sales gas production need to be conducted using the Life Cycle Assessment (LCA) approach. This study was conducted to assess the potential environmental impacts of sales gas production unit operations using a cradle to gate approach, with sales gas as the main product. The analysis employed the Life Cycle Assessment (LCA) method through the SimaPro application. The LCA stages included goal and scope definition, life cycle inventory (LCI), life cycle impact assessment (LCIA), and data interpretation. Impact assessment was carried out using the ReCiPe 2016 method at the midpoint level. Furthermore, uncertainty analysis was applied to enhance the quality of LCA data by evaluating inventory quality and determining probability distributions through Monte Carlo simulation. The results of the LCA and uncertainty analysis served as the basis for developing scenarios to reduce environmental impacts. Environmental impact assessment using the LCA method showed that the production process of 1 m3 contibutes to global warming impacts of 3.22kg CO2 eq, terrestrial acidification of 0.008 kg SO2 eq and freshwater eutrophication of 0.00030 kg P eq. The results of the study indicate that the Gas Turbine Generator (GTG) and Dew Point Control Unit are the main hotspots; therefore, energy efficiency and emission control strategies in these units should be prioritized to reduce environmental impacts. Energy efficiency improvements through routine heat exchanger cleaning indicate that Gas Turbine Generators (GTG) could reduce GWP by about 1.3%, while Dew Point Control Units (DPCU) show a smaller reduction of approximately 0.1–0.2%.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Dampak lingkungan, Industri Hulu Gas Bumi, Life Cycle Asessment (LCA), Sales Gas, Environmental impact, Upstream Oil and Gas Industry, LCA Sales Gas
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD194.6 Environmental impact analysis
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25101-(S2) Master Thesis
Depositing User:	Yudit Ratania Purwaningrum
Date Deposited:	29 Jul 2026 07:12
Last Modified:	29 Jul 2026 07:25
URI:	http://repository.its.ac.id/id/eprint/139831

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