Proppants for removal of contaminants from fluid streams and methods of using same
The invention relates to the proppants and proppant substrates treated with active compounds that reduce the presence of contaminants in fluids, methods of using those materials, as well as methods of making those materials. The invention further provides that the contaminated fluids are associated with wells, including oil and gas wells.
1. A sorption composition, comprising: a proppant material and an active compound for contaminant removal incorporated into or onto the proppant material, wherein the proppant material is selected from the group consisting of sand, coated sand, resin treated sand, zeolites, and calcined zeolites and wherein the active compound is a sulfur compound selected from the group consisting of ferrous sulfide, elemental sulfur, ferric ammonium sulfate, sodium hydrosulfide, dimethyl disulfide, dithiocarbamates, aluminum sulfide, copper sulfate, copper sulfide, and copper sulfate ammoniated, wherein the sulfur content, as % S, is from 0.1 to 25 wt %.
2. The sorption composition of claim 1 , wherein the proppant material is selected from the group consisting of activated alumina and alumina based materials, spent Claus catalyst, spent FCC catalyst, and alumina-silica industrial processed waste.
3. The sorption composition of claim 1 , wherein the proppant material is selected from the group consisting of clay and admixtures containing clay.
4. The sorption composition of claim 1 , wherein the proppant material is selected from the group consisting of ceramic, admixtures containing ceramics, and ceramic beads.
5. The sorption composition of claim 1 , wherein the proppant material is a carbon based material or admixture containing carbon.
6. The sorption composition of claim 1 , wherein the proppant material contains at least 0.1% iron.
7. The sorption composition of claim 1 , wherein the proppant material contains at least 0.1% copper.
8. The sorption composition of claim 1 , wherein the proppant material contains both iron and copper.
9. The sorption composition of claim 1 , wherein the proppant material contains oxides of copper.
10. The sorption composition of claim 1 , wherein the proppant material contains oxides of iron.
11. The sorption composition of claim 1 , wherein the proppant material is unfinished.
12. The sorption composition of claim 1 , wherein the sorption composition further comprises an ammonia compound.
13. The sorption composition of claim 12 , wherein the ammonia compound is selected from the group consisting of ferric ammonium sulfate, ammonium thiosulfate, ammonium thiocyanate, ammonium sulfate, ammonium sulfite, ammonium persulfate, and aluminum ammonium sulfate.