Diseño de un proceso industrial para la obtención de azúcares fermentables a partir de aserrín de madera de ciprés (Cupressus lusitánica miller) mediante hidrólisis enzimática

Abstract

The present work was carried out with the objective of designing an industrial process for obtaining fermentable sugars from cypress wood sawdust (Cupressus lusitanica miller). The process consists of milling, screening, pretreatment and hydrolysis. The project was carried out at the ESPOCH in the city of Riobamba, province of Chimborazo; the sawdust collection process was performed in sawmills in the northern part of the city of Riobamba. The characterization of the raw material composition was conducted through laboratory research techniques, having characteristics such as 19.80% humidity; 0.795% ash; 20.5228% Klason lignin and 43.25% cellulose. The product obtained had 10.2° Brics, measured in the laboratory with the refractometer. Moreover, in the sizing of the equipment, the quantities to be processed were estimated with an overall yield of 68.26%. It was concluded, by means of the cost-benefit analysis, that the project is feasible with a recovery time of seven years and two months, with a production cost of US$0.61 per liter of fermentable sugars. It is recommended that the study be extended to make the process more efficient and part of a circular economy, so that waste is used to generate an economic benefit and an environmental commitment.