Open AccessNovel Approach of Biodiesel Production Waste Utilization to Support Circular Economy in Biodiesel Industry
Author(s) -
Aghietyas Choirun Az Zahra,
Ilya Arina Rusyda,
Andini Hizbiyati,
Felix Giovani,
Nabila Zahara,
Bramantha Jiwandaru,
David Gunawan,
Giovani Andre Halim,
Meiti Pratiwi,
Astri Nur Istyami,
Atmy Verani Rouly Sihombing,
Ardiyan Harimawan,
Dwiwahju Sasongko,
Jenny Rizkiana
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1143/1/012030
Subject(s) - biodiesel , sodium methoxide , biodiesel production , transesterification , waste management , pulp and paper industry , sodium hydroxide , hazardous waste , environmental science , biofuel , catalysis , chemistry , engineering , organic chemistry
Current development of industry nowadays is more towards sustainability and greener production that minimize the production of waste, for example the production of biodiesel energy from Refined, Bleached, and Deodorized Palm Oil (RBDPO). However, biodiesel production is still could not eliminate the hazardous waste that is glycerin pitch. Glycerin pitch is a waste found in the glycerin purification unit which is a unit used to produce the high-grade glycerin, a side product of biodiesel production. Up until now, the existing glycerin pitch is still not well managed and remains as a hazardous waste. Glycerin pitch contains a sodium salt that can be recovered to produce biodiesel transesterification catalyst, sodium methoxide. Applying a concept of circular economy, a catalyst recovery building block is attached to integrated biodiesel process with glycerol purification. The process consists of three units, solid-liquid extraction to separate inorganic salt contains in the pitch, Chlor-Alkali process to convert inorganic sodium salt to sodium hydroxide, and catalyst making reactor to produce a sodium methoxide. Using a simulation process, the amount of catalyst recovered in the process is 43.78%.