Preparation of densified solid biofuels based on sawdust from two forest species and bovine manure for domestic and industrial use in Pucallpa-Ucayali

Abstract

Introduction: In the Ucayali region, specifically in Pucallpa, through the wood industry, industrial waste such as sawdust is generated and through livestock activity with the raising of cattle, abundant manure, dung or dung is generated, therefore , it becomes possible to generate types of biofuels with the mixture of sawdust – bovine manure, with different proportions, for domestic use through improved stoves or for industrial use. Materials and methods: The research work was carried out in the Wood Technology and Chemical Transformation of Wood Laboratories, of the National University of Ucayali (UNU), located on the Federico Basadre highway Km. 6,200, Callería district. , province of Coronel Portillo and Ucayali region. In the tests, the experimental method was applied, which consisted of observing and evaluating the properties, characteristics and important traits of biofuels. Results: In biofuels composed of bovine manure and Ceiba pentandra (white lupuna) sawdust, with the increase in manure content, the density increases; resistance to abrasion and compression remain constant; ignition time is increased; the burning time is increased; the ash content increases; the combustion rate decreases; The thermal efficiency remains constant and the caloric value decreases. Discussion: The comparison of the characteristics of biofuels composed of bovine manure and sawdust from two forest species, Ceiba pentandra (white lupuna) (Lb) and Manilkara bidentata (red quinilla) (Qc), reveals a series of significant results, for For example, with the increase in manure content, an increase in the density of biofuels is observed, as well as in abrasion and compression resistance. Conclusions: In biofuels composed of bovine manure and Manilkara bidentata (red quinilla) sawdust, with the increase in manure content, the density and abrasion resistance remain constant; compression resistance and ignition time decrease; The combustion time, ash content, combustion rate and thermal efficiency remain constant and the heating value decreases.