A large proportion of waste cooking oil (WCO) is currently being generated worldwide, which
has led to crucial problems in its waste management due to absence of a proper disposal …

Energy is crucial in the 21 st century as it immensely contributes to growth and development.
Fossil fuel serves as the backbone of the world's energy demand. This source of energy is …

The transesterification of waste oils to biodiesel was carried out in the presence and
absence of ultrasound. A new nanocatalyst of the calcium‐strontium oxide was applied with …

Production of biofuels from biomass through various methods has been intensively
researched over the past few decades. Biodiesel is prepared by reacting edible oil, non …

Green economy and blue economy are essential to applicate. One of the mandatory
programs from the Indonesian government is B30, a specification of diesel fuel that has 30 …