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All Journal Jurnal Teknik Kimia USU Jurnal Teknik Kimia USU IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Muhammad Syukri
Institut Teknologi Sawit Indonesia
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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SINTESIS STEARAMIDA DARI ASAM STEARAT DAN UREA MENGGUNAKAN PELARUT CAMPURAN : PENGARUH TEMPERATUR DAN WAKTU REAKSI Muhammad Syukri; Zuhrina Masyithah
Jurnal Teknik Kimia USU Vol. 7 No. 1 (2018): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (327.502 KB) | DOI: 10.32734/jtk.v7i1.1625

Abstract

Surfactant is a molecule which has hydrophilic group and a lipophilic group which can unify a mixture consisting of water and oil. Stearamide is one kind of surfactant non-ionic which has used on any aplication. This study aims to know about optimum of temperature and time on synthesis of stearamide from stearic acid and urea with zirconium (IV) chloride in mixed solvent. This study will be observed the effect of temperature and reaction time on the synthesis of stearamide surfactant from stearic acid and urea with zirconium (IV) chloride as catalyst in mixed solvent. This research was conducted at temperature of 45°C, 55°C, 65°C, 75°C, 85°C and 95°C, reaction time of 1 hr, 2 hr, 3 hr, 4 hr, 5 hr, 6 hr, 7 hr and 8 hr, substrate molar ratio at 1:6 (w/w), solvent ratio at 2:1 (v/v), weight of catalyst 3% (%w), and stirring speed at 250 rpm. Based on this research, the optimum condition to synthesis stearamide surfactant was obtained at 85 oC and reaction time at 3 hours.
Penerapan SMK3 untuk Mencegah Penyakit Akibat Kebisingan di Stasiun Sterilizer pada Pabrik Kelapa Sawit Mahyunis Mahyunis; Muhammad Syukri; Boby Surya Bimantoro
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 2 No 2 (2023): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v2i2.58

Abstract

Palm Oil Mill (POM) is a plantation company that specializes in palm oil commodities with outputs in the form of CPO (Crude Palm Oil) and PK (Palm Kernel). 12 processing stations at XYZ POM have high levels of noise, one of which is the sterilizer station which can cause hearing impairment to operators. This study aims to determine the level of noise at the sterilizer station, diagnose hearing impairment due to noise based on audiometry results, and assess the effectiveness of the implementation of the occupational health and safety management system at XYZ POM. The research method used in this study is a quantitative descriptive method using primary and secondary data. From the results of this study, it was found that the calculation of the noise level for 24 hours reached 94.9 dB. This value exceeds the threshold value for noise based on the Regulation of the Minister of Labor and Transmigration No. PER.13/MEN/X/2011 regarding the Threshold Value of Physical and Chemical Factors in the Workplace. To improve the safety and health of employees, XYZ POM implements an Occupational Health and Safety Management System (OHSMS) using the HIRARC (Hazard Identification Risk Assessment and Risk Control) method to identify potential hazards, assess risks and control them, one of which is noise by conducting regular audiometry examinations. The results of the audiometry examination on the sterilizer operator showed normal results. The implementation of the OHSMS at XYZ POM is effective, especially in controlling noise by Government Regulation No. 5 of 2012 regarding the Implementation of the Occupational Health and Safety Management System.
Pengaruh Variasi Ukuran Partikel pada Pembuatan Bio-Briket dari Pelepah dan Tandan Buah Kosong Kelapa Sawit Syukri, Muhammad; Maisarah; Rangkuti, Ika Ucha Pradifta; Rahimah; Tama Harahap, Khaidir Ali; Nurhidayat, Taufik
Jurnal Teknik Kimia USU Vol. 13 No. 2 (2024): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v13i2.17081

Abstract

Palm oil empty fruit bunches (EFB) and fronds are solid waste originating from palm oil processing which can be used as the main raw material for making briquettes. This is supported by its contents, namely lignin, hemicellulose and cellulose. The smaller the particle size, the greater the compressive strength of the briquette, but the burning rate will be slower because the cavity/pores of the briquette are smaller. This research aims to determine the effect of particle (mesh) size on the characteristics of briquettes which include water content, ash content, density, compressive strength and burning rate as well as to determine the best composition of a mixture of empty oil palm fruit bunches and fronds. The results of this research show that the best particle size is 70 mesh briquettes with a raw material composition of 46% EFB and 46% fronds (1:1) with 8% tapioca flour adhesive. Biobriquettes with small particle sizes have lower calorific value. The results of this research indicate that the manufacture of briquettes is in accordance with the Standard Characteristics of SNI No. 1/6235/2000.
Co-Authors Boby Surya Bimantoro Ika Ucha Pradifta Rangkuti Mahyunis Maisarah Nurhidayat, Taufik Pada Mulia Raja Rahimah Rina Maharani Tama Harahap, Khaidir Ali Wahyu Rinaldi Zuhrina Masyithah