Pyrolysis Recovery of Waste Shipping Oil Using Microwave Heating

Abstract

Abstract:This study investigated the use of microwave pyrolysis as a recovery method for waste shipping oil. The influence of different process temperatures on the yield and composition of the pyrolysis products was investigated. The use of microwave heating provided a fast heating rate (40 • C/min) to heat the waste oil at 600 • C. The waste oil was pyrolyzed and decomposed to form products dominated by pyrolysis oil (up to 66 wt. %) and smaller amounts of pyrolysis gases (24 wt. %) and char residue (10 wt. %). The pyrolysis oil contained light C 9 -C 30 hydrocarbons and was detected to have a calorific value of 47-48 MJ/kg which is close to those traditional liquid fuels derived from fossil fuel. The results show that microwave pyrolysis of waste shipping oil generated an oil product that could be used as a potential fuel.

Microwave-assisted pyrolysis with chemical activation, an innovative method to convert orange peel into activated carbon with improved properties as dye adsorbent

“…The low process temperature could be attributed to the fast heating rate and selective heating mechanism shown by microwave heating, which can generate heat rapidly within the volume of the material being heated (orange peel, biochar), creating a 'volumetric' heating effect to heat the material in bulk. This in turn created a localized reaction hot zone (Lam et al, 2016d;Wan Mahari et al, 2016) that was likely to have promoted the carbonization reaction to convert orange peel into biochar, and also the cracking reactions during chemical activation that enhanced the removal of the volatile matters from the biochar in order for increased pores development within the resulting AC.…”

“…Microwave-assisted pyrolysis shows potential as an alternative to overcome the limitations shown by pyrolysis using conventional oven or furnace as the heat source. The use of microwave as a heat source is well known for its ability to provide fast and selective heating mechanism (Lam et al, 2015;Wan Mahari et al, 2016). When microwave radiation is applied to a material being heated, the resulting microwave energy can induce dipole rotation in atomic scale over a million times per second (Njoku et al, 2014).…”

Energy and Waste Management

“…Around half of the studies are based on experiments on a laboratory scale [12][13][14] or pilot scale [19]. Some non-experimental studies use models [16][17][18] while two studies [15,19] are based on calculations which cannot be considered complex mathematical models.…”

“…In a study made by Mahari et al [14] microwave pyrolysis was used to recover energy from waste shipping oil (lubricating oil used in operation of the engine). Experiments were conducted, using filtered oil from fishing boats operating outside East Coast of Malaysia, where the yield and composition of byproducts were investigated under different process temperatures.…”

Three-dimensional hierarchical porous carbon structure derived from pinecone as a potential catalyst support in catalytic remediation of antibiotics

“…This may be ascribed to the microwave exceptional fast, efficient and selective heating mechanism. 43 There is no reports in literature regarding the optimization of different preparation parameters on activated carbon produced from pinecone, as a catalyst support in heterogeneous catalysis for antibiotics remediation.…”