Pengurangan Emisi Karbon Perusahaan Pemanis Dengan Material Circularity Indicator (MCI) Dan Energy Value Stream Mapping (EVSM)

Adiwijaya, Chandra (2023) Pengurangan Emisi Karbon Perusahaan Pemanis Dengan Material Circularity Indicator (MCI) Dan Energy Value Stream Mapping (EVSM). Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Peningkatan produktivitas operasional suatu perusahaan berkaitan erat dengan aktivitas pemanfaatan energi yang berkorelasi dengan emisi karbon. Hal tersebut dapat mengubah iklim secara drastis dan membahayakan masyarakat dunia. Preferensi konsumen yang sadar akan dampak lingkungan pun menjadi pendorong utama bagi perusahaan untuk mengurangi emisi karbon dalam operasional bisnisnya. Penelitian ini bertujuan untuk merumuskan strategi perbaikan untuk mengurangi emisi karbon PT LMN dengan material circularity indicator (MCI)—metode circular economy—dan energy value stream mapping—metode Lean. Gabungan metode tersebut telah menunjukkan efektivitasnya untuk menganalisis dan menjadi bahan pendukung diskusi root cause analysis dengan stakeholder. Hasil dari penelitian ini menunjukkan bahwa nilai MCI proses produksi sorbitol secara keseluruhan adalah 0,30 sedangkan nilai MCI proses produksi CWSS adalah 0,11—artinya sorbitol relatif lebih sirkular dibandingkan CWSS. Strategi pengurangan emisi karbon telah dirumuskan. Pada konteks sirkularitas material: starch recovery, reuse-recycle air, memaksimalkan nickel catalyst recovery, dan mengevaluasi kemungkinan menjual filter cake dan CWSS yang tidak sesuai spesifikasi sebagai pakan ternak. Pada konteksi utilisasi energi, penggantian PRV dan implementasi SMED diprioritaskan. Rekomendasi tersebut memiliki potensi pengurangan 2102 ton CO2e per tahun dan meningkatkan efisiensi energi keseluruhan hingga 10%.
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Increasing the productivity of a company is closely related to energy utilization activities which correlated to carbon emissions. It can drastically change the climate and harm world community. The preferences of consumers who are aware of environmental impacts are also the main impetus for many companies to reduce carbon emissions in its business operations. This study aims to plan an improvement strategy for reducing sweeteners’ company carbon emissions with the material circularity indicator (MCI)—a circular economy method—and the energy value stream mapping (EVSM)—a lean method. Those methods combined have shown their practicality in analyzing and triggering root cause analysis discussions with stakeholders. Results showed overall sorbitol processing MCI value is 0.30, while CWSS processing MCI value is 0.11—showing that sorbitol is relatively more circular than CWSS. Carbon emissions reduction strategy were developed. In terms of material circularity, it is suggested to recover starch, reuse-recycle water, maximize nickel catalyst recovery, and check the feasibility to sell filter cake and out-of-specification CWSS as animal feed. In terms of energy utilization, PRV replacement and SMED implementation were prioritized. Those combined has an opportunity of reducing 2102 tons-CO2e annualized and increase overall energy efficiency up to 10.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	circular economy, efisiensi energi, emisi karbon, energy value stream mapping, lean, material circularity indicator
Subjects:	Q Science T Technology > TA Engineering (General). Civil engineering (General) T Technology > TS Manufactures T Technology > TS Manufactures > TS176 Manufacturing engineering. Process engineering (Including manufacturing planning, production planning)
Divisions:	Interdisciplinary School of Management and Technology (SIMT) > 61101-Master of Technology Management (MMT)
Depositing User:	Chandra Adiwijaya
Date Deposited:	14 Feb 2023 07:13
Last Modified:	14 Feb 2023 07:13
URI:	http://repository.its.ac.id/id/eprint/97231

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