Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Distilat: Jurnal Teknologi Separasi Jurnal Teknik Kimia dan Lingkungan
Wahyudi, Moch. Ikhsan
Unknown Affiliation
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Engineering Materials Science & Nanotechnology

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Characterization of Bio-Oil and Bio-Asphalt Produced Through Catalytic Pyrolysis of Different Biomass Feedstocks Dewajani, Heny; Irfin, Zakijah; Iswara, M. Agung Indra; Ramadhana, Rucita; Wahyudi, Moch. Ikhsan; Riris, Farikhatul Iza
Jurnal Teknik Kimia dan Lingkungan Vol. 9 No. 2 (2025): October 2025
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jtkl.v9i2.7610

Abstract

Asphalt is an aggregate binder in road pavement construction derived from the residue of the petroleum fractionation process, a non-renewable natural resource. Reliance on petroleum asphalt leads to resource scarcity and increased production costs. One alternative to reduce this dependence is the use of bio-asphalt substitutes, which utilize renewable natural resources derived from biomass. The abundance of biomass such as coconut shells, sawdust, and coffee husk in East Java, Indonesia, makes it a promising resource for bio-asphalt synthesis. This study analyzes the effect of biomass types and catalyst mass ratios on the characteristics of bio-asphalt from bio-oil pyrolysis and its mixture with petroleum asphalt, specifically the penetration (pen) 60/70. The research stages include biomass preparation, zeolite catalyst activation, biomass pyrolysis into bio-oil, evaporation into bio-asphalt, and mixture analysis. Optimal characteristics were achieved using a 6% w/w coconut shell biomass catalyst, resulting in a bio-oil yield of 47.27% and a density of 1.060 g/mL. The bio-asphalt yield was 3.41% when mixed with petroleum asphalt pen 60/70. The bio-asphalt exhibited a penetration value of 66.35, a softening point of 52°C, and a density of 1.042 g/cm³, in accordance with the Indonesian National Standard (SNI) 8135:2015.
APLIKASI TUNING DENGAN METODE COHEN-COON PADA PENGENDALI SUHU AIR (SE 404) SECARA SIMULASI DAN PRAKTIKUM Wahyudi, Moch. Ikhsan; Irfin, Zakijah; Suharti, Profiyanti Hermien; Dewajani, Heny
DISTILAT: Jurnal Teknologi Separasi Vol. 11 No. 4 (2025): December 2025
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/distilat.v11i4.6776

Abstract

Tuning merupakan proses penentuan parameter pengontrol untuk mendapatkan nilai respon kontrol yang optimal. Respon suatu plant dapat diatur melalui pemilihan parameter-parameter kendali yang tepat. Penelitian ini bertujuan untuk menganalisis dan membandingkan respon dari pengendali suhu air ditinjau dari Integral Absolute Error (IAE), overshoot, dan response time menggunakan metode Cohen-Coon yang dilakukan secara simulasi menggunakan Scilab 6.1.1 dan praktikum. Pada sistem pengendalian terdapat beberapa variabel diantaranya process variable, manipulated variable, set point, dan disturbance. Penelitian diawali dengan melakukan tuning pada mode open loop untuk menentukan persamaan fungsi hantar proses. Kemudian, nilai Kp, ti, dan tD dihitung menggunakan persamaan tuning metode Cohen-Coon dengan memasukkan nilai Kp 0,21; t 6,5 detik; td 2,28 detik; dan tc 4,39 detik. Tahap akhir dari penelitian ini yaitu analisis hasil respon tuning dari metode Cohen-Coon secara simulasi dan praktikum. Berdasarkan penelitian yang telah dilakukan, sistem kontrol Proportional Integral Derivative (PID) cenderung menghasilkan respon tuning yang lebih baik dibandingkan dengan sistem kontrol lainnya. Hal ini menunjukkan bahwa sistem kontrol terbaik pada pengendali suhu air yaitu Proportional Integral Derivative Controller yang menghasilkan respon berupa offset, overshoot, dan response time berturut-turut sebesar 7,159%; 0,163; dan 24,030 detik pada hasil praktikum.
Co-Authors Dewajani, Heny Irfin, Zakijah Iswara, M. Agung Indra Profiyanti Hermien Suharti Riris, Farikhatul Iza Rucita Ramadhana