A review on thermochemical treatment of biomass: Pyrolysis of olive mill wastes in comparison with other types of biomass

Abstract

Abstract. Each year, a great quantity of olive oil is produced by the unit mill of trituration. This activity generates two by-products named olive mill wastewater and olive mill solid waste representing major potential waste and environmental problem. However, there is growing interest in pyrolysis as a technology to treat wastes to produce valuable oil, char and gas products. The major important aim of waste pyrolysis is to produce liquid fuel or bio-oil, which is easy to store, transport and can be an alternative to energy source. The key influence on the product yield is the type of biomass feedstock and operating parameters (especially temperature and heating rate). It is important to investigate the effect of variables on response yield and impulse about their optimization. This study reviews operating variable from existing literature on olive mill wastes (OMSW and OMWW) in comparison with various types of biomass. The major operating variables include type of feedstock, final temperature of pyrolysis, heating rate and particle size. The scale of this paper is to analyse the influence of operating parameters on production of pyrolysis bio-oil, char and gaseous products.

Biofuels and biochars production from agricultural biomass wastes by thermochemical conversion technologies: Thermogravimetric analysis and pyrolysis studies

“…Figures 12 and 13a show the FT-IR and H'NMR analysis of bio-oils obtained from pyrolysis of agricultural biomass samples. As can be seen, the results obtained from pyrolysis of all agricultural biomass samples have a representative FT-IR compared with other and previous works and papers (Duan et al, 2020;Guida and Hannioui, 2016;Guida et al, 2020;Ioannidou et al, 2009). The FT-IR absorbance spectrum of sunflower shell, eucalyptus, wheat straw and peanut shell's bio-oils show the presence of several and large amounts of products and functional groups in bio-oil samples.…”

“…Previous studies have been carried out (Biswas et al, 2016;Ceranic et al, 2016;Guida and Hannioui, 2016;Yu et al, 2016), and they have shown that bio-oil obtained from pyrolysis of several types of biomass contains a wide range of complex organic chemicals.…”

Sustainable Valorization of Olive Pomace Waste to Renewable Biofuels, Biomaterials and Biochemicals Via Pyrolysis Process: Experimental and Numerical Investigation

“…The activation energy calculated here has advantages over the pyrolysis activation energy of lignocellulose using the DAEM method and different models in the literature, as shown in Table 5. Diverse models have been applied to Olive oil residues such as KAS, FO, FWO and other modified model (Buratti et al 2016;Guida and Hannioui 2016;Martín-Lara et al 2017Sfakiotakis and Vamvuka 2018) . The originality for applying DAEM model to these types of Olive waste is that it is done for the first time (no published data of DAEM with olive pomace).…”

Essential Quality Attributes of Tangible Bio‐Oils from Catalytic Pyrolysis of Lignocellulosic Biomass

“…[3,4] High heating rate and short resident time in the pyrolysis process afford high yields of liquid products. [5][6][7] These processes are known as fast or flash pyrolysis for the production of oxygenated oils from biomass. [8,9] While producing liquid fuel from biomass has motivated considerable research activities in pyrolytic processes, challenges remain in pyrolysis oil upgrading due to the typically poor quality of the bio-oils.…”