| Title | Investigation of product distribution from co-pyrolysis of side wall waste tire and off-shore oil sludge |
|---|---|
| ID_Doc | 13087 |
| Authors | Gao, NB; Kamran, K; Ma, ZZ; Quan, C |
| Title | Investigation of product distribution from co-pyrolysis of side wall waste tire and off-shore oil sludge |
| Year | 2021 |
| Published | |
| Abstract | Waste tire (WT) being an environmental pollutant is attracting feedstock for producing oil and chemicals. Another important feedstock is off-shore oil sludge (OOS) having considerable amount of hydrocarbons to produce oil. First time, side wall waste tire (SWWT) has been co-pyrolyzed in this study with OOS. Primarily, altered experimentations were conducted to find optimal mixing ratio of waste tire and oil sludge with respect to temperature, nitrogen flow rates and product yields. Kinetic parameters have been found by using Coats Redfern method. The results showed that activation energies and pre-exponential factors were in the range of 25-88.22 kJ mol(-1) and 3.13 x 10(-4)-23.13 s(-1). The highest oil yield of 64.9 wt% was observed at 500 degrees C with 100 ml min(-1) and 15 degrees C min(-1) for OOS. While optimum blend ratio is 75 SWWT/25 OOS due to better char and oil properties. Co-pyrolytic oil comprised of high oxygen, nitrogen and heavy molecular hydrocarbons specially from 100% OOS. On the other side, char properties were encouraging due to higher surface area and pore volume; SWWT in the blend ratios resulted 52 m(2) g(-1) as higher specific surface area. The gas analysis revealed that C-2-C-3 gas components are higher with methane, carbon dioxide and carbon monoxide and hydrogen during co-pyrolysis. Hence, co-pyrolysis of waste tire and offshore oil sludge is promising way for not only reducing environmental hazards but also for producing oil and chemicals to contribute for circular economy. |
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