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.
This article deals with fast pyrolysis of brown algae, such as Bifurcaria Bifurcata at the range of temperature 300–800 °C in a stainless steel tubular reactor. After a literature review on algae and its importance in renewable sector, a case study was done on pyrolysis of brown algae especially, Bifurcaria Bifurcata. The aim was to experimentally investigate how the temperature, the particle size, the nitrogen flow rate (N2) and the heating rate affect bio-oil, bio-char and gaseous products. These parameters were varied in the ranges of 5–50 °C/min, below 0.2–1 mm and 20–200 mL. min–1, respectively. The maximum bio-oil yield of 41.3wt% was obtained at a pyrolysis temperature of 600 °C, particle size between 0.2–0.5 mm, nitrogen flow rate (N2) of 100 mL. min–1 and heating rate of 5 °C/min. Liquid product obtained under the most suitable and optimal condition was characterized by elemental analysis, 1H-NMR, FT-IR and GC-MS. The analysis of bio-oil showed that bio-oil from Bifurcaria Bifurcata could be a potential source of renewable fuel production and value added chemicals.
is to convert biomass to energy. Thermochemicaltreatment (pyrolysis, combustion, liquefaction, and gasification) presents several environmental advantages such as the reduction in mass and volume of disposed solids, the reduction in pollutants and
folyamatok a szőlőn . In: Récsey Antónia (szerk.) , Borászat. Mezőgazda Kiadó , Budapest , pp. 459 – 465 . Guida , M.Y. and Hannioui , A. ( 2016 ). A review on thermochemicaltreatment of biomass: Pyrolysis of olive mill wastes in comparison with
decomposition processes are finished [ 15 ]. To carry out an ideal design of the systems for thermochemicaltreatment and proper control of WDGs, it is necessary to study the pyrolysis processes of WDG and, steam gasification of the corresponding pyrolysis char
. , Barakat , A. , Aboulkas , A. , and El harfi , K. ( 2015 ). Thermochemicaltreatment of olive mill solid waste and olive mill wastewater: kinetic study . Journal of Thermal Analysis and Calorimetry , 123 : 1657 – 1666 . Guida , M.Y. , Bouaik