摘要
随着世界工业的不断发展,旧能源已经不能长久满足人们的使用,页岩油出现在大众视野中.原位开采是油页岩的主流开采技术,但大部分原位开采技术采用加热棒加热技术,通过加热棒将电能转化为热能,能量转化率较低.采用电源直接加热油页岩的方法,实现油页岩干酪根的裂解.采用有限元分析软件建立电源加热油页岩的热电耦合模型.通过数值计算获得温度分布,并与传统加热的温度分布进行对比.结果表明:电源加热与传统加热相比,在加热阶段的加热速率提高了 27.3％,最终稳定时的平均温度也提高了将近100 ℃,且加热体积也更大.由数值模拟结果可知,电源直接加热油页岩技术,升温速度更快,能量利用率更高.
Abstract
With the continuous development of world industry,the old energy sources can no longer meet people's long-term needs,and shale oil is gradually appearing in the public eye.In-situ mining is the mainstream mining technology for oil shale,but most in-situ mining technologies use heating rod heating technology to convert electrical energy into thermal energy through heating rods,and the energy conversion rate is low.The method of direct power heating of oil shale is adopted to achieve the pyrolysis of oil shale kerogen.The finite element analysis software is applied to establish a thermoelectric coupling model for power heating of oil shale.The temperature distribution is obtained by numerical calculation and compared with the temperature distribution of traditional heating.The results show that compared with traditional heating,the heating rate of power heating in the heating stage is increased by 27.3％,the average temperature at the final stabilization is also increased by nearly 100 ℃,and the heating volume is also larger.The numerical simulation results show that the power direct heating technology of oil shale has a faster heating speed and higher energy utilization efficiency.
基金项目
教育部重点实验室开放基金项目(NEPUME-kfjj-026)
NETL
NSTL
万方数据