【摘要】 用四川宜宾贫煤、大安寨油基钻屑及废泥浆配制三元型煤,以洁净型煤标准中的低位发热量和干燥无灰基挥发分为主要指标,通过正交实验优化得到最优配比为56∶35∶9,实测主要指标符合洁净型煤标准规定值,并优于普通民用型煤.三元型煤为钻井废物资源化提供了一个低碳环保的技术路线.更多还原

【Abstract】 Oil-based drilling cuttings(ODC) and waste drilling mud(WDM) both are typical and difficult degradation substances containing high concentration of organic contaminants.However,if they serve as the binder of briquette,it will be able to digest organic contaminants easily,recycle the heat value and improve the sulfur retention rate at the same time.In this paper,the three-component briquette(TCB) was made from meager coal(PM,from Yibin in Sichuan Province),ODC and WDM(from Daanzhai oil field).Besides,the optimal proportion of three components was obtained by taking low heat value(Qnet,ad) and dry ash free basis volatile matter(Vdaf) of clean briquette as indexes through orthogonal experiment design.The results showed that the optimal proportion was 65∶35∶9,and the TCB not only met the code of clean briquette but also was more energy-efficient and more environmental than ordinary briquette.This work has provided the resource utilization of the drilling waste with a promising technique route,for it is low-carbon and environmental-friendly.更多还原