Chemical Reaction Engineering Laboratory, Department of Biotechnology and Chemical Engineering, Manipal University Jaipur, Jaipur, 303007, Rajasthan, India.
Bharat Petroleum Corporation Limited (BPCL), Corporate Research & Development Centre, Greater Noida, Uttar Pradesh, 201306, India.
Environ Sci Pollut Res Int. 2024 Aug;31(39):52086-52104. doi: 10.1007/s11356-024-34630-x. Epub 2024 Aug 13.
Catalytic co-pyrolysis of two different refinery oily sludge (ROS) samples was conducted to facilitate resource recovery. Non-catalytic pyrolysis in temperatures ranging from 500 to 600°C was performed to determine high oil yields. Higher temperatures enhanced the oil yields up to ~ 24 wt%, while char formation remained unchanged (~ 45%) for S1. Conversely, S2 exhibited a notably lower oil yield (~ 4 wt%) than S1. Pyrolysis oil of S1 consisted of phenolics (~ 50% at 600 °C) whereas hydrocarbons were predominant in S2 oil (~ 80% at 600 °C). Catalytic pyrolysis of S1 did not exhibit a substantial impact on oil yields but the oil composition varied significantly. High hydrocarbons, phenolics, and aromatics were obtained with molecular sieve (MS), metal slag, and ZSM-5, respectively. Catalytic co-pyrolysis of S2 with sawdust (SD) in the presence of MS enhanced the oil yield, and the resulting oil consisted of high hydrocarbons (~ 54%) and aromatics (~ 44%).
对两种不同炼油厂油泥（ROS）样品进行了催化共热解，以促进资源回收。在 500 至 600°C 的温度范围内进行非催化热解，以确定高油收率。较高的温度将油收率提高到了24wt%，而 S1 的炭产率保持不变（45%）。相比之下，S2 的油收率明显较低（4wt%）。S1 的热解油中含有酚类物质（在 600°C 时约为 50%），而 S2 油中则以烃类物质为主（在 600°C 时约为 80%）。S1 的催化热解对油收率没有显著影响，但油的组成有明显变化。分子筛（MS）、金属渣和 ZSM-5 分别得到了高含量的烃类、酚类和芳烃。在 MS 存在下，S2 与木屑（SD）的催化共热解提高了油收率，得到的油中含有高含量的烃类（54%）和芳烃（~44%）。
