Kajian Dampak Lingkungan berdasarkan Metode Life Cycle Assessment pada Onshore Receiving Facility di PT X

Noorsasi, Aubri Raisa (2021) Kajian Dampak Lingkungan berdasarkan Metode Life Cycle Assessment pada Onshore Receiving Facility di PT X. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kegiatan proses produksi gas alam di Onshore Receiving Facility (ORF) di PT X meliputi lima unit pemrosesan utama yaitu Gas Separation¸ Glycol Contactor, Trietylen Glycol Regeneration System (TGRS), Flare Stack, dan Condensate Treatment. Beberapa unit pemrosesan menghasilkan emisi berupa zat pencemar udara dan Gas Rumah Kaca (GRK). Emisi tersebut memiliki potensi menimbulkan pencemaran lingkungan hidup, oleh karena itu perlu dilakukan kajian dampak lingkungan yang ditimbulkan dari proses produksi di ORF sehingga dapat disusun strategi alternatif untuk menciptakan produk dengan proses produksi yang ramah lingkungan.
Penelitian ini mengidentifikasi dampak lingkungan dari kegiatan proses produksi gas alam menggunakan metode Life Cycle Assessment (LCA) berdasarkan data bahan baku, bahan kimia, bahan bakar, produk serta emisi yang dihasilkan. Analisis dampak lingkungan dilakukan dengan pendekatan midpoint dengan metode ReCiPe 2016 dan CML-IA Baseline yang meliputi kategori dampak berupa Global Warming, Ozone Formation, Acidification, fine particulate matter formation, Stratospheric ozone depletion, Photochemical oxidation, Human Toxicity, Eutrophication, dan Ecotoxicity dengan menggunakan software SimaPro 9.1.1. Unit fungsional yang digunakan pada tahap inventory maupun impact assessment adalah per ton produksi gas di tahun 2020.
Berdasarkan hasil kajian LCA, kategori dampak global warming merupakan dampak terbesar yang dihasilkan dari proses produksi gas alam di ORF dengan nilai normalisasi dampak sebesar 2,35E-03 untuk metode ReCiPe 2016 dan 3,70E-12 untuk metode CML-IA Baseline. Sedangkan unit proses yang memiliki nilai dampak terbesar adalah unit Condensate Treatment dengan total nilai normalisasi dampak sebesar 4,75E-03 untuk metode ReCiPe 2016 dan 3,81E-12 untuk metode CML-IA Baseline. Dampak yang muncul dari unit ini disebabkan oleh emisi yang dihasilkan dari penggunaan bahan bakar gas. Alternatif perbaikan yang dapat diterapkan pada proses produksi gas alam di ORF, PT X antara lain penambahan hidrogen pada bahan bakar gas, menerapkan Flare Gas Recovery System, dan optimasi kinerja Gas Dehydration System, dimana, ketiga alternatif ini dapat membantu menurunkan dampak lingkungan yang ditimbulkan.
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PT X have five core processing units on Onshore Receiving Facily (ORF), namely Gas Separation¸ Glycol Contactor, Trietylen Glycol Regeneration System (TGRS), Flare Stack, and Condensate Treatment. On daily basis, several processing units produce emission in form of air pollutant and Greenhouse Gases (GHG) that are potentially harmful to the environment, and thus the need to an environmentally friendly approach to this problem.
This research was conducted to identify environmental impact on natural gas production process using Life Cycle Assessment (LCA) method based on data of raw material, used chemicals, fuel, final products and emission. Environmental impact analysis is conducted using midpoint approach with ReCiPe 2016 and CML-IA Baseline method that include impact category of Global Warming, Ozone Formation, Acidification, fine particulate matter formation, Stratospheric ozone depletion, Photochemical oxidation, Human Toxicity, Eutrophication, and Ecotoxicity using SimaPro 9.1.1 software. The functional unit that is used is ton of gas production in 2020.
Based on the results of the LCA study, the global warming impact is the biggest impact produced from natural gas production process in ORF with total of normalization value 2,35E-03 for ReCiPe 2016 method and 3,70E-12 for CML-IA Baseline method. Meanwhile, the processing unit with the biggest impact is Condensate Treatment with the total of normalization value 4,75E-03 for ReCiPe 2016 method and 3,81E-12 for CML-IA Baseline method. The impact from this unit is the result of the usage of fuel gas. Several suggestions to reduce the environmental impact are addition of hydrogen in the fuel gas, implementation of Flare Gas Recovery System (FGRS), and optimization of Gas Dehydration System.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Dampak Lingkungan, LCA, Midpoint, Onshore, Simapro, Environmental Impact, LCA, Midpoint, Onshore
Subjects: T Technology > T Technology (General) > T57.5 Data Processing
T Technology > TD Environmental technology. Sanitary engineering > TD194.6 Environmental impact analysis
Divisions: Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis
Depositing User: Aubri Raisa Noorsasi
Date Deposited: 09 Aug 2021 01:12
Last Modified: 09 Aug 2021 01:12
URI: http://repository.its.ac.id/id/eprint/85144

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