Methods of operation for reduced residual hydrocarbon accumulation in oil shale processing

摘要

A method of reducing residual hydrocarbon accumulation during processing can comprise forming a permeable body (608) of a comminuted hydrocarbonaceous material within an enclosure (602). A primary liquid collection system (610) is located in a lower portion of the permeable body. The primary liquid collection system (610) has an upper surface for collecting and removing liquids. Comminuted hydrocarbonaceous material below the primary liquid collection system (610) forms a non-production zone (616). At least a portion of the permeable body (608) is heated to a bulk temperature above a production temperature sufficient to remove hydrocarbons therefrom within a production zone (614), where conditions in the non-production zone (616) are maintained below the production temperature.

主权项

1. A method of reducing residual hydrocarbon accumulation during processing, comprising:
a) forming a permeable body of a comminuted hydrocarbonaceous material within an enclosure forming a control infrastructure, wherein a primary liquid collection system is located in a lower portion of the permeable body, said primary liquid collection system having an upper surface for collecting and removing liquids and wherein comminuted hydrocarbonaceous material below the primary liquid collection system forms a non-production zone; and b) heating at least a portion of the permeable body to a bulk temperature above a production temperature sufficient to remove hydrocarbons therefrom, wherein conditions in the non-production zone are maintained below the production temperature and the permeable body remains substantially stationary during heating.