Catalytic pyrolysis of waste melamine coated chipboard

Abstract

Catalytic pyrolysis of waste melamine coated chipboard was performed in a fixed‐bed reactor at 400°C, 500°C, 600°C, and 700°C and a residence time of 1 h. The effects of temperature and catalysts on both product distribution and bio‐oil composition were discussed. Lewis acids (AlCl3, TiCl4, and FeCl3), bases (NaOH and KOH), and basic salts (Na2CO3 and K2CO3) were used as catalysts in the pyrolysis process. The product distributions were changed depending on both the type of catalyst and temperature. Bio‐oil obtained from the pyrolysis of melamine coated chipboard contained a large variety of oxygenated hydrocarbons. Phenols were found to be the major compounds identified in bio‐oils for all tested runs. The bio‐oils produced by Lewis acids contained aldehydes. However, the bio‐oils obtained from the thermal run, the run with bases, and the run with basic salts did not contain these compounds. © 2011 American Institute of Chemical Engineers Environ Prog, 32: 156–161, 2013.

Catalytic Pyrolysis of Pine Wood Sawdust to Produce Bio-oil: Effect of Temperature and Catalyst Additives

“…[38] Consequently, the chemical additives led to drop off the bio-oil yield. [9,12,[39][40][41] Effects of Amount of Catalyst on Product Yields. The relationship between product distribution and catalyst ratio is given in Figure 4.…”

“…[6,7] As previously reported, the use of catalysts in pyrolysis processes changes the composition of the bio-oils. [8][9][10][11][12][13] It is pertinent that a suitable catalyst is selected for catalytic pyrolysis. In the literature, many different types of catalysts, such as zeolites (ZSM-5, Na-ZSM-5, H-ZSM-5), mesoporous (MCM-41, SBA-15, Al-MCM-48), acids, bases and inorganic salt compounds (NaCl, KCl, K 2 CO 3 Na 2 CO 3 , MgCl 2 , NaOH, KOH, FeCl 3 , ZnCl 2 ), metal oxides (Al 2 O 3 , CaO, Fe 2 O 3 , TiO 2 , ZnO), and others, were examined in order to improve the features of bio-oils.…”

The pyrolysis characteristics of wood waste containing different types of varnishes

“…During the thermal degradation of lignin it produces phenolics that are valuable chemicals and can be used as intermediates in the synthesis of pharmaceuticals, for the production of adhesives, and in the synthesis of specialty polymers (Roy et al, 2000;Bu et al, 2012). Therefore, most of the prior studies were based on phenol production from biomass (Ku and Mun, 2006;Windeisen and Wegener, 2008;Ertaş and Alma, 2010b;Žilnik and Jazbinšek, 2012;Özbay et al, 2013;Trinh et al, 2013).…”

Thermal Characterization and Pyrolysis of Waste Leather Treated with CoCl₂ And MnC₂

“…They concluded that the catalysts used increased the bio-oil yield, varying also the other fractional yields in different ways, and GC-MS results showed that the use of the catalysts significantly reduces the number of compounds in the bio-oil. Meanwhile, Ozbay et al 21 studied the catalytic pyrolysis of waste melamine coated chipboard in a fixedbed reactor at different temperatures in the absence and presence of catalysts. Lewis acids (metal chlorides), bases and basic salts were used as catalysts.…”