Thermal Behavior of Pyrolysis Oil–Diesel Oil Emulsion in Evaporating Micronic Droplets

Author(s):  
Raffaela Calabria ◽  
Fabio Chiariello ◽  
Patrizio Massoli
Author(s):  
Wang Lei ◽  
Wang Yun ◽  
Jin Jie

The research has been done for removing asphaltene by pickling process of diesel oil from pyrolysis oil self-made by waste rubber in this paper, and the study showed that pickling effect of concentrated sulfuric acid was better than concentrated hydrochloric acid. The best pickling effect was found when the concentration of sulfuric acid was 18.4mol/L, acid to oil ratio, namely, the amount of concentration of sulfuric acid to the amount of diesel oil ratio, was 25%. This experiment proved that removing asphaltene by pickling process using concentrated sulfuric acid was remarkable.


2011 ◽  
Vol 130-134 ◽  
pp. 2371-2378 ◽  
Author(s):  
Wan Fu Wang ◽  
Wei Dong Du ◽  
Lin Tang ◽  
Peng Liu

Technology of pyrolysis rotary furnace for oil sludge was conducted in this paper, which feature with natural gas as fuel, multi-combuster for heating controlling and novel dynamic-static sealing structure at both ends of the rotary furnace. A complete set of technical process was designed and operated with processing scale of 10 tons/day of oil sludge (The sludge moisture content is 80%). The result indicates that the system meets the standard of safe running. Recovery rate of the oil in sludge is more than 80%, while the oil content of pyrolytic residues is less than 0.3%. The main components of non-condensable gas include methane and hydrogen, occupying 35% and 40% respectively. There are high content of lightweight fractions in pyrolysis oil, such as gasoline, kerosene and diesel oil, in which the C10-C15 is near to 50%-60% and aromatics can be up to 60%. Finally, due to the high contents of carbon and aluminum salt in residue, it is much worth for the carbon and aluminum salt recovery.


2021 ◽  
Vol 154 ◽  
pp. 105000
Author(s):  
Javier Ordonez-Loza ◽  
Carlos Valdes ◽  
Farid Chejne ◽  
Manuel Garcia Perez ◽  
Wen Zhang ◽  
...  

Author(s):  
M. Sigit Cahyono ◽  
Ucik Ika Fenti

The objective of the research was to investigate the influence of heating rate and temperature in the reactor on the yield and properties of pyrolysis oil obtained from waste plastic bag, that is considered as low-density polyethylene (LDPE). The experiments were performed in fixed bed reactor equipped with a steam atomizing burner, a temperature controller, and a condenser. Approximately, the amount of ten kilograms of waste plastic bag loaded into the reactor chamber and then pyrolyzed using the temperature between 250 and 450°C and heating rates of 5 to 15°C/min. The results showed that as the oil yield decreased, the heating rate increased. Alternatively, the oil yield increased with temperature and the wax content decreases as the temperature increases. The highest quantity of pyrolysis oil was produced from waste plasctic bag is 45%, in the temperature 450<sup>o</sup>C and the heating rate 15°C/min, with wax content of 25%, solid char of 12 % and non-condensable gas of 41%. The physical properties of oil were evaluated and compared to those of diesel oil. The analysis results showed that the oil product’s properties from pyrolysis of the waste plastic bag in temperature 450<sup>0</sup>C, were relatively closer to those of diesel oil with caloric value 11,043 kcal/kg, specific gravity of 0.812, kinematic viscosity 2.80 mm<sup>2</sup>/s, and flash point of 27<sup>o</sup>C.


2015 ◽  
Vol 48 (3) ◽  
pp. 158-162
Author(s):  
Daisuke Kobayashi ◽  
Sho Fujisaki ◽  
Tomoki Takahashi ◽  
Tomohiko Hashiba ◽  
Katsuto Otake ◽  
...  
Keyword(s):  

2014 ◽  
Vol 953-954 ◽  
pp. 1238-1241 ◽  
Author(s):  
Pipat Subsuksumran ◽  
Prakorn Kittipoomwong ◽  
Monpilai Narasingha ◽  
Wirachai Soontornrangson

Emulsification of pyrolysis oil produced from plastic waste has been experimented. The employed cascade heating steps and heating rates pyrolysis process provides 80% product yield using waste plastic or recycles HDPE pellets as a raw material. Water-in-oil emulsion is produced ultrasonically and mechanically with Span80 as a surfactant. The emulsion stability was assessed by water droplet size and visual observation of any phase separation. An ultrasonic mixer is found to be more effective than mechanical homogenizer in terms of homogenous stability to emulsify plastic oil with water. For emulsion with 10% water by volume, the emulsion is observed to be stable for up to 24 hours after mixing.


2014 ◽  
Vol 19 (2) ◽  
pp. 55-63
Author(s):  
Seokhwan Lee ◽  
Hoseung Kim ◽  
Taeyoung Kim ◽  
Sejong Woo ◽  
Kernyong Kang

In recent years, there has been growing interest in alternative energy sources to fossil fuels. One of them is plastic pyrolysis oil (ppo) that converted from plastic waste by the pyrolysis process. The oil could be used as a fuel for combustion process in some industries. The performance of ppo combustion in steam-atomizing burner was investigated to determine the feasibility of diesel oil displacing in pyrolysis process heating. A prototype steam-atomizing burner was installed to burn plastic pyrolysis oil, with variable 3, 6, and 9 bar steam pressure, to pyrolyze 10 kg/batch low density polyethylene (LDPE) waste in a batch reactor. The pyrolysis process was maintained at 3500C along 2 hours at atmospheric condition. The flame temperature, the length of flame, fuel consumption, heating rate, and pyrolysis yield was observed along the process. The experiment shows that the increase of steam pressure will increase all parameters. The most optimum condition is plastic pyrolysis oil combustion using steam-atomizing burner at 9 bar steam pressure, which consumes 28 litre of fuel and yields 57% of pyrolysis oil.


Energies ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 228 ◽  
Author(s):  
Jungmo Oh ◽  
Myeonghwan Im ◽  
Seungjin Oh ◽  
Changhee Lee

Currently, the exhaust gas of a ship is regulated for nitrogen oxides and sulphur compounds; however, there is no IMO regulation on smoke under discussion. This study investigated the reduction of exhaust gas through ship emulsion fuel, which can simultaneously reduce nitrogen oxides and smoke in ship engines before smoke regulations are established. The combustion and exhaust characteristics were investigated according to the moisture content of emulsion fuel using a 400-kW generator engine. As the water content of the emulsion and the temperature of the combustion chamber increase, micro explosion increases and the combustion period decreases. The nitrogen oxide and smoke from the emulsion fuel used in this study decreased by 7% and 75%, respectively. The nitrogen oxides and soot reductions obtained by the use of emulsion fuel were boosted by micro-explosion of water contained in the fuel during combustion.


Sign in / Sign up

Export Citation Format

Share Document