Oil Shale Ex-Situ Process - Leaching Study of Spent Shale
Journal Title: International Journal of Engineering and Science Invention - Year 2018, Vol 6, Issue 3
Abstract
During the past decade, significant advancement has been made on various extraction technologies to develop U.S. oil shale resources in an environmentally and economically sustainable fashion. This work has been driven by the increasing demand for domestic transportation fuels and the need to improve U.S. energy security. Although conventional hydrocarbon deposits are becoming more difficult to find and limited in volume, unconventional reserves are relatively easy to locate and plentiful. Hence, development of unconventional resources, particularly shale gas, oil sands, and shale oil continues to receive tremendous attention. The present work shows ex-situ process of oil shale in a five ton/day externally heated horizontal rotary reactor, and discuss the process parameters and yield. The main focus of this article is: A) Effect of reactor bed temperature, rotation speed and feed rate on the residence time, fuel consumption and process yield B) Hazardous environmental issue related to leaching of heavy metals and metalloids from spent shale by underground and/or surface water, which prevent further commercialization of this process. In addition, an Aspen diagram of the overall oil shale process is presented as ongoing work focusing on key mechanical issues that affect online reliability and process efficiency including particle size, bed temperature and solid/gas mixing efficiency.
Authors and Affiliations
Hassan Golpour PhD, Joseph D. Smith PhD
Keywords
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