Analysis of the Characteristics of Rice Husk and Pinecone Bio-briquettes with Tapioca Flour Adhesive

Abstract

Making bio briquettes is one way to produce environmentally friendly and renewable energy. Biobriquette raw materials can come from rice husk and pinecone waste, often found in Indonesia. This study aims to determine the characteristics of bio briquettes from a mixture of rice husks and pinecones with tapioca flour adhesive, including moisture content and calorific value, and to determine the characteristics of the best mixture based on SNI 01-6235-2000 standards. This study uses an experimental method where rice husks and pinecones are first converted into charcoal by a carbonization process and mixed with an adhesive from tapioca flour. Variations of husk and pinecone mixture used were SP1 (100% rice husk), SP2 (75%:25%), SP3 (50%:50%), SP4 (25%:75%, and SP5 (100% pinecones). Based on the results of the research on the characteristics of rice husk and pinecones bio briquettes with tapioca flour adhesive for the moisture content of SP1 28.42%, SP2 28.8%, SP3 27.07%, SP4 26.99%, and SP5 27.84%, while the calorific value obtained, is SP1 2745.13 cal/g, SP2 4302.73 cal/g, SP3 4777.10 cal/g, SP4 5485.93 cal/g, SP5 6152.83 cal/g. However, according to SNI, the bio briquettes’ moisture content characteristics for each variation have not met the standard. It has met the SNI standard when viewed from the calorific value of the SP4 and SP5 variations.