TH12342A - Method for removing mercury and arsenic from fluids in the presence of recovery mass mercury and / or arsenic. - Google Patents

Abstract

The invention involved a method for removing mercury or arsenic from fluids in the presence of recoverable solids. (recovery) mercury And / or arsenic The matter contains at least copper and sulfur, in the form of copper sulfite, and is formed (a) from the incorporation of copper compounds other than sulphides into the solids of the supporting element (b). It is possible to transmit the results obtained in the (c) step and from the initial exposure of the produce to sulfur and (d) heating.

Claims (6)

1. Methods for removing at least one type of metal or metal compound selected from the mercury or arsenic-containing group from the fluid consists of fluid contact with the recovery solid mass. mass) solid mercury and / or arsenic containing an integral part of the diffusion agent or substrate of solid mineral containing copper sulfide. The material was produced by the following process. (a) Provide a solid dispersant or support agent with copper oxide. (b) contact, diffuse a or a substrate of such solid mineral with sulfur and (c) heat the produce. It is obtained in step (b) in an atmosphere that is not oxidized at temperature and is at least a period sufficient to be at least copper sulphide. 2. Method according to claim 1 in which the fluid is gas or liquid. 3. Method according to claim 1, in which the said matter is included in the fixed bed 4. Method according to claim 1, in which the fluid is a natural gas with an important role, methane and hydrocarbons. Saturated with molecules larger than Thane 5. Method for claim 1 in which the said fluid is a hydrocarbon or hydrocarbon mixture. 6. Method according to claim 1, in which the fluid is gas condensate 7. Method for claim 1 in which the mass consists of approximately 8 to 25% copper sulfide proportions by weight of the weight of the said substance and where the atomic ratio of S: Cu is between 0.8: 1 and 2.1 8. The method according to claim 1, in which during the (b) phase, at least some of the elemental sulfur is used. In aqueous solution in organic solvents 9. The claim method 1, in which step (c) at least 50% of the copper may be included as a CuxSy copper sulfide, where each x and y are integers from 1 to 10 1. 0. Method according to claim 1, in which step (b) the produce from step (a) is saturated with an organic solution of sulfur or sulfur in a liquid state or with sulfur in a vaporized state, which will Was condensed on substrate 1 1. The method according to claim 1 in which the dispersant or substrate of the mineral therein, in section (a) there is an additional silver compound 1. 2. The method of claim 1 also consists of the introduction of copper oxide into the rejection process to make metallic copper before step (b) 1. 3. Method according to claim 12, which the reductive step process It is carried out on the selected compounds from the group containing hydrogen aldehyde, formic acid and hydrazine 1. 4. Method of claim 12 The diffuse or support of such solid substance in step (a) will include an additional part of the compound ne. 5. Method according to claim 1, preceding step (a), copper compounds other than copper oxides are included in the dispersant or substrate of such solid mineral. And the resulting product is to contain the copper oxide in the dispersant or substrate of the solid mineral 1 6. Method according to claim 15, in which aqueous copper nitrate solution is used to saturate the dispersant. Or solid support as mentioned before such roasting