This work focuses on bitumen slow pyrolysis. Mass and energy yields of oil, solid and gas were obtained from pyrolysis experiments using a semi-batch reactor in a nitrogen atmosphere, under three non-isothermal conditions (maximum temperature: 450 °C, 500 °C and 550 °C). The effect of temperature on the product yields was discussed. The gas compositions were analysed using gas chromatography (GC) and the heating value of oil and solid residue was also measured. Using a thermo-gravimetric analyser, kinetic parameters were evaluated through Ozawa-Flynn-Wall (OFW) method. Results showed that oil yield is maximum at 500 °C (50%). Moreover, gas yield increased with increasing pyrolysis temperature from 18% to 36%. On the other hand, solid yield showed an opposite trend: it decreased from 39% to 32%. As regard energy yields, they showed a similar trend with the mass ones. H_2, CH₄, C₂H₄, C₂H₆ and C₃H₈ are the main components of the produced gas phase. It has been noticed that the recovery of bitumen to liquid oil through pyrolysis process had a great potential since the oil produced had high calorific value comparable with commercial fuels.

这项工作的重点是沥青慢速热解。在三个非等温条件下（最高温度：450°C，500°C和550°C），在氮气气氛中使用半间歇式反应器，通过热解实验获得了油，固体和气体的质量和能量产率。讨论了温度对产物收率的影响。使用气相色谱仪（GC）分析气体成分，并测量油和固体残留物的热值。使用热重分析仪，通过Ozawa-Flynn-Wall（OFW）方法评估动力学参数。结果表明，在500°C（50％）时，油的产量最高。此外，随着热解温度从18％增加到36％，气体产率增加。另一方面，固体产率显示出相反的趋势：从39％下降至32％。关于能源产量，他们表现出与大众相似的趋势。H_{在图2中，} CH ₄，C ₂ H ₄，C ₂ H ₆和C ₃ H ₈是产生的气相的主要成分。已经注意到通过热解过程将沥青回收成液态油具有巨大的潜力，因为所产生的油具有可与商业燃料相比的高热值。