Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Jurnal Sains dan Teknologi Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Journal of Engineering and Technological Sciences
Ramadhanty, Rizky Vasya
Unknown Affiliation
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Potensi Pemanfaatan Asap Cair (Liquid Smoke) Menjadi Bio-Disinfectant dari Limbah Kayu Karet dan Kayu Akasia Afrah, Bazlina; Ihsan Riyadi, Muhammad; Cundari, Lia; Rizki, Fadhilah; Ramadhanty, Rizky Vasya; Oktarinasari, Eva
JST (Jurnal Sains dan Teknologi) Vol. 13 No. 1 (2024): April
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jstundiksha.v13i1.66832

Abstract

Bio-disinfectant dari asap cair adalah alternatif untuk menggantikan maraknya penggunaan disinfektan kimia yang menyebabkan efek terhadap kesehatan karena meninggalkan residu berbahaya. Asap cair dengan dua variasi bahan baku biomassa, yaitu limbah kayu karet dan kayu akasia merupakan subjek penelitian ini. Tujuan penelitian ini adalah menganalisis potensi asap cair dari variasi jenis biomassa sebagai bio-disinfectant secara eksperimental melalui pendekatan analisis karakteristik serta komposisi dari bio-disinfectant yang dihasilkan. Penelitian ini merupakan penelitian eksperimental. Pengumpulan data dilakukan pada setiap alur tahapan penelitian, meliputi proses pirolisis, distilasi, dan adsorpsi dengan variasi bahan baku dan grade asap cair sebagai variabel penelitian. Analisis karakteristik yang dilakukan meliputi pH, viskositas, densitas, kadar asam, dan fenol. Hasil analisis karakteristik menunjukkan asap cair kayu karet grade 1 memenuhi standar asap cair Jepang dengan pH terendah 2,41 dan nilai asam tertinggi 0,19. Berdasarkan hasil uji karakteristik dan komposisi secara keseluruhan diketahui bahwa sampel asap cair berbahan baku kayu akasia grade 1 merupakan asap cair dengan kualitas terbaik yang berpotensi menjadi bio-disinfectant. Kayu akasia grade 1 memiliki pH 3,26, nilai asam 0,11, serta nilai viskositas kinematik sebesar 4,3248 cSt. Uji fenol dengan metode spektrofotometri menunjukkan bahwa asap cair kayu akasia merupakan sampel dengan nilai fenol tertinggi yaitu 2527,6 ppm. Komposisi komponen kimia pada asap cair kayu akasia grade 1 berdasarkan hasil uji GC-MS meliputi senyawa fenol, phosponic acid, dan carbamic acid yang berguna dalam proses disinfeksi mikroorganisme patogen.
Analysis of Liquid Smoke Grade Characteristics from Coconut Shells and Palm Kernel Shell Waste Through a Slow Pyrolysis Process Afrah, Bazlina Dawami; Riady, M. Ihsan; Payomthip, Panida; Ramadhanty, Rizky Vasya; Rizki, Fadhilah; Alfayyadh, Muhammad Luthfi
Journal of Engineering and Technological Sciences Vol. 56 No. 4 (2024)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2024.56.4.10

Abstract

This research was motivated by the abundance of biomass plantations in Indonesia. Accumulated biomass waste will cause environmental problems. Biomass processing can resolve this issue, by producing functionally and economically valuable products. The purpose of this research was to increase the value of biomass by processing it as liquid smoke through pyrolysis and then proceeding to the purification stage. The purification method applied in this research was a combination of distillation and adsorption processes using natural zeolite. The variables of this research were: two types of biomass, namely coconut shells and palm kernel shells, and liquid smoke grade variations. The analysis parameters were: pH, viscosity, density, acid content, and phenol analysis as well as GC-MS. The characteristics analysis results showed that all liquid smoke samples met the Japanese liquid smoke standard. Based on pH, acid, and phenol analysis, the liquid smoke from the coconut shells sample had better quality compared to the liquid smoke from palm kernel shells, namely with pH 2.36, acid content 0.26 mg/mL, and phenol 2,368.75 ppm. The GC-MS test results indicated that grade-1 liquid smoke from both samples contained antibacterial compounds, such as phosphonic acid, formic acid, and carbamic acid, which have the potential to inhibit bacterial growth.
Evaluation of Lifetime and Sulfur adsorption on Zinc Oxide (ZnO) at Desulfurizer of Fertilizer Industry Rizki, Fadhilah; Ramadhanty, Rizky Vasya; Cundari, Lia; Anggraini, Dwi; Riduansyah, Muhammad
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 11, No 1 (2026): EDISI MARET 2026
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v11i1.7726

Abstract

Fertilizer Industry has an ammonia unit to produce ammonia as the main raw material for urea production. The sulfur removal process occurs in the desulfurizer in the feed treating section to minimize ammonia production failure due to the toxic nature of sulfur for the catalyst in the reforming section. When the adsorbent is saturated in one of the desulfurizers, the desulfurizer position will be swapped and replaced with a new ZnO adsorbent. Lifetime evaluation of the adsorbent as well as analysis of the adsorption characteristics of the 108-DB desulfurizer were conducted to determine the adsorption performance by the adsorbent. Zinc Oxide (ZnO) adsorbent as of August 23, 2022 desulfurizer is still suitable for use and it is necessary to replace the new ZnO adsorbent when the fertilizer industry is Turn Around schedule, it is carried out in July 2023 in accordance with the design lifetime data of 3-4 years. The sulfur adsorption process of PUSRI-IIB feed treating section by ZnO adsorbent in desulfurizer follows the second-order kinetics model with the adsorption rate constant (k) value obtained as -0.3339 (month-1). The adsorption isotherm that takes place follows the Langmuir isotherm model and belongs to the type of chemical adsorption (chemisorption) with the maximum adsorption capacity (qe) and Langmuir adsorption constant (KL) values of 0.0629 mg/g.hr and 3.283977 L/mg, respectively.
Co-Authors Alfayyadh, Muhammad Luthfi Bazlina Dawami Afrah Cundari, Lia Dwi Anggraini Oktarinasari, Eva Payomthip, Panida Riady, M.I. Riduansyah, Muhammad Rizki, Fadhilah