Methods of recovering minerals from hydrocarbonaceous material using a constructed infrastructure and associated systems
View Patent ↗A method of recovering minerals from hydrocarbonaceous materials can include forming a constructed permeability control infrastructure. This constructed infrastructure defines a substantially encapsulated volume. A comminuted hydrocarbonaceous material can be introduced into the control infrastructure to form a permeable body of hydrocarbonaceous material. The permeable body can be contacted with an agent sufficient to remove minerals therefrom. The agent is typically a solution containing a solvent, leachant, chelating agent and the like via which minerals can be removed having value, toxic minerals, radioactive minerals and the like.
1. A method of recovering minerals from hydrocarbonaceous materials prior to, simultaneous with or subsequent to removing hydrocarbons therefrom, comprising:
a) forming a constructed permeability control infrastructure which defines a substantially encapsulated volume, said infrastructure 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:
b) introducing a comminuted hydrocarbonaceous material into the control infrastructure to form a permeable body of hydrocarbonaceous material;
c) contacting said body of hydrocarbonaceous material with an agent wherein one or more minerals are removed by said agent; and
d) passing said removed minerals and agent outside of said encapsulated volume.
2. The method of claim 1 , wherein the comminuted hydrocarbonaceous material comprises oil shale, tar sands, coal, lignite, bitumen, peat, or combinations thereof.
3. The method of claim 2 wherein the mineral is a metal other than an alkali or alkaline earth metal.
4. The method of claim 3 wherein the metals recovered comprise one or more of Cu, Ag, Au, Pt, Mo, W, Ni, and Pd.
5. The method of claim 3 wherein the metals recovered comprise one or more of Hg, Pb, and U.
6. The method of claim 1 , wherein the permeable body consists essentially of crushed hydrocarbonaceous material having an average size from about 6 inches to about 2 feet.
7. The method of claim 1 , wherein the permeable body has a void space from about 10% to about 40% a total volume of the permeable body.
8. The method of claim 1 , wherein the hydrocarbons have been removed and said permeable body is a spent hydrocarbonaceous material.
9. The method of claim 8 , wherein said spent hydrocarbonaceous material has been heated at an elevated temperature prior to being contacted by said agent.
10. The method of claim 1 wherein said agent comprises at least one of a solvent, a leachant, an acid, a chelating agent, water and combinations thereof.
11. The method of claim 10 , wherein said agent contains a solvent.
12. The method of claim 10 , wherein said agent contains a leaching agent.
13. The method of claim 10 , wherein said agent contains a chelating agent that binds said minerals.
14. The method of claim 1 , wherein the permeable body further comprises a plurality of conduits embedded within the permeable body, at least some of said conduits being configured to introduce said agent into said permeable body.
15. The method of claim 1 , wherein the step of contacting said permeable body with said agent occurs over a time and within a temperature range sufficient to remove minerals in a recoverable form.
16. The method of claim 15 , wherein the removal of minerals in the recoverable form includes a liquid product in a lower region of the control infrastructure from which said liquid product can be drained.
17. The method of claim 1 , wherein said mineral recovery is completed prior to the processing of said hydrocarbonaceous material for hydrocarbon recovery.
18. The method of claim 1 , wherein said mineral recovery is simultaneous with the processing of said hydrocarbonaceous material for hydrocarbon recovery.
19. The method of claim 1 , wherein said mineral recovery is subsequent to the processing of said hydrocarbonaceous material for hydrocarbon recovery leaving a spent hydrocarbonacous material.
20. The method of claim 19 , wherein said spent hydrocarbonaceous material is roasted at a temperature higher than the temperature utilized for the removal of hydrocarbons prior to being contacted by said agent.
21. The method of claim 1 , wherein the infrastructure comprises clay, bentonite clay, bentonite amended soil, compacted fill, compacted earth, low grade shale, or combinations thereof.
22. The method of claim 1 , wherein the hydrocarbonaceous material remains substantially stationary throughout the method.