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Muhammad Ansori Nasution
Pusat Penelitian Kelapa Sawit
Agriculture, Biological Sciences & Forestry

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Studi Preferensi Pemilihan Merek Dekanter 3 Fasa pada Pabrik Kelapa Sawit menggunakan Analytic Hierarcy Process Muhammad Ansori Nasution; Meta Rivani; Arjanggi Nasution; Rizki Amalia; Ayu Wulandari; Rizalmi Fitrah; Yahdi Akbar
Jurnal Penelitian Kelapa Sawit Vol 29 No 3 (2021): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v29i3.128

Abstract

Decanter is used to separate oil phase from underflow sludge of continuous settling tank (CST) in Palm Oil Mills (POM). The most commonly type of decanter is 3-phase decanter. This paper describes the brand preferences in 3-phase decanter selection by using the Analytical Hierarchy Process (AHP) method. Before the AHP was done, expert correspondent prepared a list of criteria and sub-criteria for 3-phase decanter brand selection. AHP was conducted in 3 steps, which were: i) criteria classification, ii) pair-wise comparison of criteria and sub-criteria, that did by user correspondent, and iii) evaluation on the 3-phase decanter selection based on the brand comparison, that did by user correspondent. AHP simulation was carried out using Expertchoice® version 11. The first step of AHP generated: i) a question list arranged in questionnaire form, regarding criteria and sub-criteria concerning the brand of the decanter, and ii) weight value for each question. The second step of AHP revealed that technical criteria are preferable to economic than technical criteria. The spare part availability has the highest preference value amongst the economic sub-criteria, while oil losses has the highest preference in the technical sub-criteria. The third step of AHP showed that the decanter of Brand B is on the top ranking, with an economic and a technical preference value of 0.148 and 0.130, respectively. These results indicated that preference values can change if a complex analysis of criteria, sub-criteria, and decanter brands is involved in the one system analysis. Results of sensitivity analysis shows that both the decanter of Brand B and Brand E get the first rank in preference, which Brand E is on third rank before the sensitivity analysis is deducted.
Perbandingan Roundtable On Sustainable Palm Oil (RSPO), Indonesian Sustainable Palm Oil (ISPO), dan Malaysian Sustainable Palm Oil (MSPO) Ayu Wulandari; Muhammad Ansori Nasution
Jurnal Penelitian Kelapa Sawit Vol 29 No 1 (2021): Jurnal Peneltian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v29i1.129

Abstract

Industri minyak sawit merupakan industri yang berperan dalam sektor perekonomian suatu negara. Industri kelapa sawit membutuhkan standar sertifikasi dalam memperkuat sistem industri dan langkah untuk tetap berkelanjutan. Sistem industri yang diperkuat berdasarkan ekonomis, hukum, sosial, dan ramah lingkungan. Penerapan standar sertifikasi kelapa sawit yang berkelanjutan antara lain Roundtable on Sustainable Palm Oil (RSPO), Indonesian Sustainable Palm Oil (ISPO) dan Malaysian sustainable Palm Oil (MSPO). Penelitian ini bertujuan untuk membandingkan tiga standar sertifikasi dan mengetahui standar sertifikasi yang paling komprehensif. Metode penelitian ini menggunakan metode kualitatif yang bersifat deskriftif dan dianalisa secara komprehensif dari setiap indikator. Hasil penelitian ini menunjukkan bahwa total penilaian RSPO, ISPO dan MSPO masing-masing sebesar 77 poin, 56 poin dan 62 poin, sehingga dapat disimpulkan RSPO memiliki tingkat kedetailan dan persyaratan yang lebih komprehensif dibandingkan ISPO dan MSPO berdasarkan aspek sistem sertifikasi, sistem rantai pasok, perlindungan sosial dan lingkungan, perlakuan petani kecil/plasma, lahan gambut dan pembebasan tanah.
Karakterisasi dan Analisis Sifat Mekanik Selulosa Ester dari Tandan Kosong Kelapa Sawit untuk Bahan Alternatif Filamen 3D Printing Fadlin Qisthi Nasution; Meta Rivani; Muhammad Ansori Nasution; Tjahjono Herawan; Halimahtuddahliana
Jurnal Penelitian Kelapa Sawit Vol 30 No 1 (2022): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v30i1.174

Abstract

3D printing adalah teknologi yang berkembang pesat belakangan ini. Selusosa Ester, salah satu turunan dari selulosa dapat digunakan sebagai kandidat bahan altenatif filamen untuk 3D printing. Salah satu sumber selulosa yang dapat dimanfaatkan untuk sintesis selulosa ester adalah tandan kosong dari kelapa sawit. Agar selulosa ester dari tandan kosong dapat digunakan sebagai bahan filamen alternatif, dibutuhkan pengamatan pada sifat mekanik pada selulosa ester dan produk turunannya. Penelitian ini bertujuan untuk mengetahui sifat mekanik dan karakterisasi selulosa ester dan produk turunannya sebagai bahan alternatif 3D printing. Hasil dari penelitian ini menunjukkan bahwa dari hasil karakterisasi menggunakan metode Thermogravimetry Analyisis diketahui bahwa titik leleh selulosa ester yang dihasilkan berada diantara filamen konvensional yang sering digunakan, yaitu polylactic acid dan acrylonitrile butadiene styrene sehingga selulosa ester yang dihasilkan dari tandan kosong kelapa sawit berpotensi untuk menggantikan filamen yang sudah ada. Dari hasil pengujian mekanik, pada percobaan ini, dapat disimpulkan untuk mendapatkan kekuatan mekanik yang optimal dari hasil 3D printing menggunakan tinta dari selulosa ester, infill density dari produk berkisar pada 100% - 80%. Sedangkan untuk mendapatkan filamen 3D yang baik, komposisi campuran selulosa ester:polylactic acid dari produk adalah 20%:80%. Pengujian mekanik juga menunjukkan bahwa terdapat perbedaan nilai Tensile Strength dan Modulus of Elasticity. Nilai Tensile Strength lebih tinggi pada proses estrifikasi pada temperatur yang lebih tinggi, namun nilai Modulus of Elasticity lebih tinggi pada temperatur yang lebih rendah. Sedangkan untuk temperatur proses yang sama, tidak terdapat perbedaan nilai Modulus of Elasticity yang signifikan.
Studi Preferensi Pemilihan Merek Dekanter 3 Fasa pada Pabrik Kelapa Sawit menggunakan Analytic Hierarcy Process Muhammad Ansori Nasution; Meta Rivani; Arjanggi Nasution; Rizki Amalia; Ayu Wulandari; Rizalmi Fitrah; Yahdi Akbar
Jurnal Penelitian Kelapa Sawit Vol 29 No 3 (2021): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v29i3.128

Abstract

Decanter is used to separate oil phase from underflow sludge of continuous settling tank (CST) in Palm Oil Mills (POM). The most commonly type of decanter is 3-phase decanter. This paper describes the brand preferences in 3-phase decanter selection by using the Analytical Hierarchy Process (AHP) method. Before the AHP was done, expert correspondent prepared a list of criteria and sub-criteria for 3-phase decanter brand selection. AHP was conducted in 3 steps, which were: i) criteria classification, ii) pair-wise comparison of criteria and sub-criteria, that did by user correspondent, and iii) evaluation on the 3-phase decanter selection based on the brand comparison, that did by user correspondent. AHP simulation was carried out using Expertchoice® version 11. The first step of AHP generated: i) a question list arranged in questionnaire form, regarding criteria and sub-criteria concerning the brand of the decanter, and ii) weight value for each question. The second step of AHP revealed that technical criteria are preferable to economic than technical criteria. The spare part availability has the highest preference value amongst the economic sub-criteria, while oil losses has the highest preference in the technical sub-criteria. The third step of AHP showed that the decanter of Brand B is on the top ranking, with an economic and a technical preference value of 0.148 and 0.130, respectively. These results indicated that preference values can change if a complex analysis of criteria, sub-criteria, and decanter brands is involved in the one system analysis. Results of sensitivity analysis shows that both the decanter of Brand B and Brand E get the first rank in preference, which Brand E is on third rank before the sensitivity analysis is deducted.
Perbandingan Roundtable On Sustainable Palm Oil (RSPO), Indonesian Sustainable Palm Oil (ISPO), dan Malaysian Sustainable Palm Oil (MSPO) Ayu Wulandari; Muhammad Ansori Nasution
Jurnal Penelitian Kelapa Sawit Vol 29 No 1 (2021): Jurnal Peneltian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v29i1.129

Abstract

The palm oil industry is an industry that has a role in a country's economic sector. The palm oil industry needs certification standards in strengthening industrial systems and steps to remain sustainable. Industrial systems that are strengthened based on economic, legal, social, and environmentally friendly. Implementing sustainable palm oil certification standards include the Roundtable on Sustainable Palm Oil (RSPO), Indonesian Sustainable Palm Oil (ISPO), and Malaysian Sustainable Palm Oil (MSPO). This study aims to compare the three certification standards and find out the most comprehensive certification standards. This research method uses qualitative methods that are descriptive and comprehensively analyzed from each indicator. The results of this study indicate that the total RSPO, ISPO and MSPO assessments amounted to 77 points, 56 points, and 62 points respectively, so it can be concluded that the RSPO has a more comprehensive level of detail and requirements compared to ISPO and MSPO based on aspects of the certification system, supply chain system, social and environmental protection, treatment of smallholders/plasma, peatlands and land acquisition.
Kajian Komparasi Kinerja Sludge Separator dan Dekanter 3 Fasa Pabrik Kelapa Sawit (PKS) Arjanggi Nasution; Muhammad Ansori Nasution; Meta Rivani; Henny Lydiasari; Ayu Wulandari
Jurnal Penelitian Kelapa Sawit Vol 30 No 1 (2022): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v30i1.157

Abstract

The technology used to reduce oil loss at output sludge from underflow Continuous Settling Tank (CST) is a sludge separator and 3-phase decanter. In POM A, oil extraction is done manually with an oil loss rate of 0.36 tons/hour or 7.83 m3/day. The resulting oil loss figures indicate that extracting the oil using a sludge separator or 3-phase decanter is necessary. The research method used in this study is the comparison of primary data and secondary data on the working principle, the number of supporting equipment, electrical power requirements, operations, maintenance, investment costs, and waste quality. Primary data used oil content, flow rate, and temperature of CST underflow liquid; oil content and effluent flow rate from the final drab output; the amount of oil quoted and returned to the POM. Secondary data in the form of POM performance reports, waste production reports, and data on the specifications of the sludge separator and 3-phase decanter from producers. The working principle of the sludge separator and 3-phase decanter are particle size, bowl layout, bowl rotation direction, output type, sludge capacity, equipment capacity, and oil loss. The 3-phase decanter has 28 units of processing support equipment, more than the 22 units of sludge separator. The power requirement of the sludge separator is 45-60 kWh with a total of 3 units, and a 3-phase decanter requires an electrical power of 22-55 kWh with a capacity of 1 unit. Operationally there are supporting factors for sludge separator, including temperature, nozzle size, and bowl rotation, while supporting aspects for 3-phase decanter include flow rate and feed composition, centrifugal and differential speeds, depth of clarification zone, and weir liquid discharge opening. Maintenance of sludge separator and 3-phase decanter influenced by diluent water, operation, and damage factors. The range of investment costs in the procurement of sludge separators is IDR 0.863-1.837 billion, while the 3-phase decanter is IDR 3.804-5.825 billion. The quality of the 3-phase decanter waste is better than the sludge separator. These results indicate that the most effective tool for processing CST sludge output is a 3-phase decanter. Comparison of the working principle of 3-phase sludge separator and decanter.
Karakterisasi dan Analisis Sifat Mekanik Selulosa Ester dari Tandan Kosong Kelapa Sawit untuk Bahan Alternatif Filamen 3D Printing Fadlin Qisthi Nasution; Meta Rivani; Muhammad Ansori Nasution; Tjahjono Herawan; Halimahtuddahliana
Jurnal Penelitian Kelapa Sawit Vol 30 No 1 (2022): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v30i1.174

Abstract

3D printing is a technology that is developing rapidly in recent times. Cellulose Esters, one of the derivatives of cellulose, can be used as alternative filament candidates for 3D printing. One source of cellulose that can be used for the synthesis of cellulose esters is oil palm empty fruit bunches (OPEFB). In order for cellulose ester from OPEFB to be used as an alternative filament material, it is necessary to observe the mechanical properties of cellulose ester and its derivative products. This study aims to determine the mechanical properties and characterization of cellulose ester and its derivative products as an alternative material for 3D printing. The results of this study indicate that from the results of the characterization using the Thermogravimetry Analysis method, it is known that the melting point of the cellulose ester produced is between the conventional filaments that are often used, namely polylactic acid and acrylonitrile butadiene styrene so that the cellulose ester produced from OPEFB has the potential to replace already available filaments. From the results of mechanical testing, in this experiment, it can be concluded that to obtain optimal mechanical strength from 3D printing using cellulose ester ink, the infill density of the product ranges from 100% - 80%. Meanwhile, to get a good 3D filament, the composition of the cellulose ester:polylactic acid mixture of the product is 20%:80%. Mechanical testing also shows that there are differences in the values ​​of Tensile Strength and Modulus of Elasticity. The value of Tensile Strength is higher in the estrification process at a higher temperature, but the value of the Modulus of Elasticity is higher at a lower temperature. Meanwhile, for the same processing temperature, there is no significant difference in the value of the Modulus of Elasticity.
Co-Authors Arjanggi Nasution Ayu Wulandari Fadlin Qisthi Nasution Halimahtuddahliana Henny Lydiasari Meta Rivani Rizalmi Fitrah Rizki Amalia Tjahjono Herawan Yahdi Akbar