Development of densified solid biofuels from mixture of two residual biomass, a cassava starch and coal, own of department of Córdoba

Abstract

In this paper densified solid biofuels were produced from the mixture of rice husk, coir, coal and a
cassava binder, own department of Cordoba. Initially, it was developed an expanded lattice simplex
experimental design to determine the number of runs. Manual densification process was performed; the
mixtures were compacted with a pressure of 6000 psi (41,36 MPa) for a hold time of 15 min load. Later
tests of mechanical and compressive strength to the briquettes manufactured durability were performed,
and analytically calculated the heating value and sulfur emissions each run.
It was found that coal is the component that most adversely affects the durability of briquettes, contrary to
coconut fiber, which helps to improve the property. All briquettes showed excellent compressive strength,
besides no sulfur emissions exceeded 1%.