KEROGENE RECOVERY AND IN SITU OR EX SITU CRACKING PROCESS

摘要

A method of obtaining a thermal cracking feedstock for the production of olefins from an in-situ extracted oil-shale formation. The method comprises the steps of obtaining compositional analyses data for a set of in-situ extracted shale oils, the set of in-situ extracted shale oils produced at varied production temperatures and/or levels of lithostatic stress; determining from the compositional analyses data a value of a production temperature or a lithostatic stress that when achieved produces an in-situ extracted shale oil having a concentration of aromatics at or below a target level, the target level suitable for the production of olefins by thermal cracking; adjusting oil-shale formation extraction conditions to achieve the values for production temperature and/or lithostatic stress; and producing an in-situ extracted shale oil suitable for use as a thermal cracking feedstock for the production of olefins. A method for processing a hydrocarbon produced from a feed oil-shale formation to produce olefins is also provided.