Oily hazardous wastes generated from the shale gas exploitation has long been a major environmental threat, yet traditional treatment techniques are suffered by high energy consumption and secondary pollution. To address this challenge, we developed an optimized Cyclone Deoiling Technology that directly separated the oily compounds from drilling wastes and recycled into diesel fuel products with high purity. Instead of destructing the hazardous wastes, the oily components were extracted from porous solid substrates by coupling revolution-rotation movement. By doing so, as low as 0.34 kWh/kg energy consumption was achieved, which is 70% lower than that of heating approaches, and the recovery rate was over 98%. Using our prototype facility as testbed, the oil content in solid wastes was dramatically reduced from 7.7% to 0.27% after treatment, qualifying the environmental standard of 0.3%. We believe the technology is a promising technique facilitating the sustainable development of the oil and gas industry.

页岩气开采过程中产生的含油危废长期以来一直是主要的环境威胁，而传统的处理技术存在高能耗和二次污染的问题。为了应对这一挑战，我们开发了一种优化的旋风除油技术，可直接将油性化合物与钻井废料分离，并回收成高纯度柴油产品。油性成分不是破坏危险废物，而是通过公转-自转耦合运动从多孔固体基质中提取出来。如此一来，能耗低至0.34kWh/kg，比加热方式低70%，回收率达98%以上。使用我们的原型设施作为试验台，处理后固体废物中的含油量从 7.7% 大幅降低到 0.27%，符合0.3%的环保标准。我们相信该技术是一项有前途的技术，可促进石油和天然气行业的可持续发展。