EVALUATING THE BIOCHAR CREATION EFFICIENCY FROM SPENT COFFEE GROUNDS

Thanh Duy Phan; Luan Kien Hong; Tai Nhat Nguyen; Nam Phan Nguyen; An Duy Truong; Nghia Trong Hoang; Nam Hoai Nguyen; Dieu Thanh Nguyen; Long Nhut-Phi Nguyen

Authors

Thanh Duy Phan HCMC University of Technology and Education, Vietnam
Luan Kien Hong HCMC University of Technology and Education, Vietnam
Tai Nhat Nguyen HCMC University of Technology and Education, Vietnam
Nam Phan Nguyen HCMC University of Technology and Education, Vietnam
An Duy Truong HCMC University of Technology and Education, Vietnam
Nghia Trong Hoang HCMC University of Technology and Education, Vietnam
Nam Hoai Nguyen HCMC University of Technology and Education, Vietnam
Dieu Thanh Nguyen Industrial University of Ho Chi Minh City, Vietnam
Long Nhut-Phi Nguyen HCMC University of Technology and Education, Vietnam

Keywords:

biochar, biochar creation efficiency (BCE)/biochar yield, biomass, slow pyrolysis, spent coffee grounds (SCGs)

Abstract

The spent coffee grounds are one of the biomass types that bring many benefits to production and life. The creation of biochar from
spent coffee grounds has garnered significant interest in many studies. This article uses the slow pyrolysis method at 450oC, 500oC, and 550oC to create biochar from the spent coffee grounds and determine the biochar generation efficiency to select appropriate experimental parameters of this pyrolysis process. The results showed that, after the slow pyrolysis at 450oC for 30 minutes, the
average value of the biochar creation efficiency from the spent coffee grounds is higher than that of the remaining pyrolysis process.