Intermediate vapor collection within encapsulated control infrastructures
View Patent ↗A method of recovering hydrocarbons from hydrocarbonaceous materials can include forming a constructed permeability control infrastructure. This constructed infrastructure defines a substantially encapsulated volume. A mined hydrocarbonaceous material can be introduced into the control infrastructure to form a permeable body of hydrocarbonaceous material. The permeable body can be heated sufficient to remove hydrocarbons therefrom. Hydrocarbon products can be collected from intermediate locations within the permeable body. Advantageously, an intermediate fluid collection system can be used to draw a hydrocarbon product from the permeable body at preselected locations. Such intermediate collection can provide hydrocarbon product fractions which can reduce or eliminate the need for full-scale distillation of a hydrocarbon product having a full range of products such as that typically found in crude oil. In addition, product quality can be tailored by monitoring such intermediate draws and adjusting operating parameters accordingly.
1. A constructed permeability control infrastructure, comprising:
a) a permeability control impoundment defining a substantially encapsulated volume, said impoundment comprising clay, bentonite clay, bentonite amended soil, compacted fill, refractory cement, cement, synthetic geogrids, fiberglass, rebar, nanocarbon fullerene additives, filled geotextile bags, polymeric resins, oil resistant PVC liners, engineered cementitious composites (ECC), fiber reinforced composites, geosynthetic fabrics, sealant, grout, or combinations thereof, wherein the control infracstructure is formed in direct contact with walls of an excavated hydrocarbonaceous material deposit or is freestanding having either a foundation support of earthen material or a local surface topography as a floor;
b) a comminuted hydrocarbonaceous material within the encapsulated volume forming a permeable body of hydrocarbonaceous material; and
c) an intermediate fluid collection system oriented within the permeable body and configured to draw a hydrocarbon product from the permeable body.
2. The infrastructure of claim 1 , wherein the intermediate fluid collection system includes a vertical condenser having a central cooling member oriented within a condenser sleeve having openings to allow fluid communication with the permeable body such that a vapor product of the hydrocarbon product condenses along the central cooling member to form a liquid product.
3. The infrastructure of claim 1 , wherein the intermediate fluid collection system includes at least two intermediate collectors which are vertically spaced sufficient to allow recovery of a first hydrocarbon fraction from a lower intermediate location and a second hydrocarbon fraction from an upper intermediate location, said second hydrocarbon fraction having a higher average API than the first hydrocarbon fraction.
4. The infrastructure of claim 3 , wherein the at least two intermediate collectors include a plurality of fluidly associated trays which are oriented and tiered to allow liquids to overflow to a lower tier.
5. The infrastructure of claim 1 , wherein the intermediate fluid collection system includes at least two draws which allow removal of the hydrocarbon product from selected locations within the permeable body.
6. The infrastructure of claim 1 , wherein the control infrastructure is adapted to be physically connected with walls of an excavated hydrocarbonaceous material deposit.
7. The infrastructure of claim 1 , wherein the control infrastructure is freestanding.
8. The infrastructure of claim 1 , wherein the comminuted hydrocarbonaceous material comprises or consists essentially of oil shale, tar sands, coal, lignite, bitumen, peat, or combinations thereof.
9. The infrastructure of claim 1 , wherein the permeable body has a void space from 10% to about 50% of a total volume of the permeable body.
10. The infrastructure of claim 1 , further comprising a gaseous heat source operatively connected to the permeability control impoundment and configured to direct a heated gas to the permeable body for convective heating thereof.
11. The infrastructure of claim 1 , further comprising a plurality of conduits embedded within the permeable body, at least some of the plurality of conduits being heating conduits.
12. The infrastructure of claim 11 , wherein the heating conduits are thermally coupled to the heat source and embedded in the permeable body to form a closed heating system having substantially no mass transfer between the permeable body and heating fluids within the heating conduits.
13. The infrastructure of claim 1 , wherein the impoundment comprises clay, bentonite clay, bentonite amended soil, compacted fill, compacted earth, low grade shale, or combinations thereof.