Properties and Combustion Characteristics of Molded Solid Fuel Particles Prepared by Pyrolytic Gasification or Sawdust Carbonized Carbon

Abstract

a Pyrolytic gasified charcoal (PGC) and tar are the solid and liquid products, respectively, yielded from biomass gasification technology. In this paper, PGC was molded with adhesives to prepare molded solid fuel (MSF). Tar and PGC were obtained from the pyrolytic gasification of wood chips and sawdust from pine and cedarwood. PGC was molded with phenol resin prepared by wood tar to prepare MSF (MSF-MP). Meanwhile, there were two other methods used to prepare MSF. PGC molded with common phenol resin was one method (MSF-P). PGC was molded with starch adhesive to prepare MSF-S. Wood powder carbonized carbon (WPCC) obtained from the marketplace was employed as a trial sample. The properties and combustion characteristics of MSFs and WPCC were studied. It was found that the shatter strength of these MSFs were more than 95%. MSFs had higher activation energy and comprehensive combustion index compared to WPCC. MSF-MP yielded the following data: shatter strength: 95.86%, lower heating value (LHV): 25.89 MJ•kg . The LHV and activation energy of MSF-MP were superior to those of other MSFs. Therefore, MSF-MP has a market potential for use as barbecue charcoal in restaurant or family gatherings. The preparation of MSF-MP is a prospective method for the utilization of PGC and wood tar.

Effect of pyrolysis temperature on pine sawdust chars and their gasification reactivity mechanism with CO2

“…Besides, the quantitative description of comprehensive gasification characteristic index S is beneficial to compare the gasification reactivity. The equation is as follows: : where d x /d t max represents the maximum value of gasification rate and d x /d t mean represents the mean value of gasification rate.…”

Combustion Kinetics of Biochar Prepared by Pyrolysis of Macadamia Shells

“…The comprehensive combustibility index (SN) determines the combustion reactivity of the samples (Islam et al 2015;Zhou et al 2015), and is calculated according to Eq. 1, (1) where (dw/dt)max and (dw/dt)mean represent the maximum and mean rates of weight loss (wt.%/min), respectively, and Ti and Th are the ignition and burnout temperatures (K).…”

Hydropyrolysis of Residual Camellia sinensis and Its Cellulose and Lignin Fractions over Nickel Nanoparticles Confined Inside Carbon Nanotube Microreactors at Atmospheric Pressure

“…The thermochemical conversion of biomass in the absence of oxygen generates char, noncondensable gases, and tar, which designates the oil phase containing volatile products. − The tar yields range from 10 to 35 wt % depending on the type of biomass and experimental factors and typically comprise large quantities of oxygen-containing compounds and water, − causing a series of problems, such as equipment corrosion and deleterious health and environmental impacts . As a result, the application of tar has been limited to insect repellents and plant growth promoters or inhibitors in agriculture and forestry .…”