IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Vol 5 No 1 (2026): April

Pemanfaatan Campuran Bunch Ash dan CaCO₃ dalam Proses Claybath untuk Meningkatkan Efisiensi Pemisahan Inti dan Cangkang Kelapa Sawit

Rahimah, Rahimah (Unknown)
Irham, Wardatul Husna (Unknown)
Satria, Bagus (Unknown)



Article Info

Publish Date
30 Apr 2026

Abstract

The palm oil processing industry requires an efficient kernel-shell separation process to improve product quality and minimize kernel losses. One commonly used method is the claybath system that utilizes the density difference between the kernel and shell using a calcium carbonate (CaCO₃) solution. However, using large amounts of CaCO₃ can increase operational costs and generate waste. This study aims to analyze the effect of combining Bunch Ash (oil palm empty fruit bunch ash) with CaCO₃ on the effectiveness of the claybath process. The research method uses an experimental approach with five mixture compositions: 0:100, 25:75, 50:50, 75:25, and 100:0. The parameters observed include reductions in dirt content and kernel losses. The results showed that a mixture of 25% Bunch Ash and 75% CaCO₃ gave the best results with an average reduction in dirt content of 56.44% and a reduction in losses of around 86.66%. These results indicate that Bunch Ash has the potential to be a partial substitute for CaCO₃ in clay bath systems, thereby increasing process efficiency and supporting the utilization of biomass waste in the palm oil industry.

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Journal Info

Abbrev

IRAJTMA

Publisher

Subject

Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

Description

IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) fokus pada artikel ilmiah hasil penelitian dan review dalam bidang teknik mesin dan aplikasinya yang antara lain meliputi: 1. Konversi energi 2. Mekanika 3. Material 4. Manufaktur 5. Lain-lain yang ...