Abstract: The present invention relates to sorbent compositions and methods to reduce the amount of mercury emitted into the atmosphere as a result of processing a mercury-containing material. The sorbent compositions include a sorbent source and at least one halogen material. The sorbent source is interacted with the halogen material to form a halogenated sorbent. The halogenated sorbent is contacted with a mercury-containing product (e.g., gas, vapor or mixtures thereof) which is produced as a result of processing a mercury-containing material. At least a portion of the mercury in the mercury-containing product is absorbed by the halogenated sorbent such that the level of mercury in said mercury-containing product is reduced.

Abstract: The present invention relates to sorbent compositions and methods to reduce the amount of mercury emitted into the atmosphere as a result of processing a mercury-containing material. The sorbent compositions include a sorbent source and at least one halogen material. The sorbent source is interacted with the halogen material to form a halogenated sorbent. The halogenated sorbent is contacted with a mercury-containing product (e.g., gas, vapor or mixtures thereof) which is produced as a result of processing a mercury-containing material. At least a portion of the mercury in the mercury-containing product is absorbed by the halogenated sorbent such that the level of mercury in said mercury-containing product is reduced.

Abstract: This provides a method for producing fine particles of liquid or a mixture of liquids that contains dissolved solids in it. This particularly applies to solutions of salts that specially need to be added to gaseous streams at temperatures above ambient. The method can also be applied for producing very fine particles and aerosols of materials that are normally solid or liquid by selecting appropriate solvent, pressure and temperature.

Abstract: The present invention provides a method for lowering the rate of injection of activated carbon or carbon based sorbents for control of mercury in coal fired utility systems where the flue gas is also conditioned with SO3 or SO3/NH3 conditioning. The invention replaces the SO3 or SO3/NH3 conditioning by a water based conditioner which does not much adversely affect the efficiency of the injected activated carbon. One such water based conditioner is a composition contained in ATI-2001 available from ARKAY Technologies Inc., 609 Hancock Court, McKees Rocks, Pa. 15136.

Abstract: The invention provides compositions to remove mercury and other pollutants from a fluid stream, particularly flue gases containing them. The compositions are mixtures of compounds selected from two or more different groups of compounds. One of the compositions can simultaneously remove mercury and condition the dust for better removal of the dust by an ESP if an ESP is the device of choice for dust control. This composition is a mixture selected from the group of halides other than fluoride and chloride, and mixture thereof, and that selected from a group of nitrates. In the other invention, the composition consists of a mixture of selected polyhydroxy compound or compounds, ammonium sulfate, halides other than fluoride and chloride, and mixture thereof. The composition can be liquid or dry powder and can be injected ahead of the particulate control device as a mist when the formulation is a liquid or as a powder when dry. Methods are provided for applying the formulations.

Abstract: The invention provides compositions to remove mercury and other pollutants from a fluid stream,, particularly flue gases containing them. The composition is a mixture consisting of (a) polyhydroxy compound selected essentially from the group consisting of mono, di, poly saccharides and mixture thereof; (b) a catalyst selected essentially from the group of ammonium compounds, sulfuric acid, phosphoric acid and salts, zinc chloride, and mixture thereof; and (c) specificity producing compound selected from the group of elemental sulfur, sullides and polysulfides of ammonia and alkalies, compounds and metals of copper, silver, tin, gold, and mixture thereof. The polyhydroxy compound in (a) above, either alone or in conjunction with the third group (c), above is also shown effective to remove mercury and other pollutants from fluid streams. The composition can be liquid or dry powder. Methods are provided for applying the formulation.

Abstract: The present invention provides compositions including a mixture containing sulfides and/or polysulfides of ammonium, sodium, potassium, lithium, etc.

Abstract: The present invention provides compositions including a salt selected from the group consisting essentially of sodium nitrate, sodium nitrite, ammonium nitrate, lithium nitrate, barium nitrate, cerium nitrate, and mixtures thereof, as flue gas conditioning formulations for use in controlling particulates, hazardous substances, NO.sub.x, and SO.sub.x. For the purpose of obtaining greater yields of particulate and hazardous substance removal, the compositions may further include a polyhydroxy compound, preferably selected from the group consisting essentially of sucrose, fructose, glucose, glycerol, and mixtures thereof. Methods are also provided for adding these compositions to the flue gas stream to control particulate, hazardous substance, NO.sub.x, and SO.sub.x emissions.

Abstract: Methods for minimizing deposits in boilers, furnaces, incinerators or other systems firing tire derived fuels when burned in combination with other fuels which may include fuel oils are disclosed. These methods include treating the fuels so as to raise the magnesium content of the fuels or their combustion products comprising adding to the fuels one or more magnesium-containing compounds. The methods of treating tire derived fuels when they are burned with other fuels not including fuel oils includes adding to the fuel a suspension of magnesium hydroxide in water. The method of treating tire derived fuels when they are burned in combination with other fuels including fuel oils involves adding to the fuel a compound containing a magnesium-based slag mitigation component and a heavy metal combustion catalyst.

Abstract: A method for increasing the porosity of fly ash comprising adding an effective amount of a polymer/nitrate composition to fly ash produced from the combustion of fuels such as coal.

Abstract: A stable aqueous suspension of a mixture of magnesium hydroxide and copper oxychloride, together with a suspending agent, is used to reduce deposits in kilns or furnaces used to make iron ore agglomerates, known as pellets, during a calcination process in which iron ore fines mixed with fluxing materials having a phosphate content of less than 1% by weight of the total flux and iron ore weight, are heated to from about 900.degree. to about 1400.degree. C. in order to create the hardened iron ore pellets, called flux pellets, one of the chief raw materials in steel making.

Abstract: A process for separating porous components from non-porous components of a mixture of granular materials comprising the steps of:(a) contacting the mixture of the porous and non-porous materials with a gas capable of adsorbing in the pores of the porous component;(b) discharging the so charged or loaded mixture into a liquid in which the adsorbed gas is allowed to desorb from the porous componet, the viscosity and surface tension of the liquid being chosen so that the desorbed gas remains attached to the porous component with the specific gravity of the liquid chosen to separate the so desorbed porous component from the nonporous component; and(c) separating the floating materials from those of sinking materials in the liquid of Step (b).

Abstract: The instant invention is directed to a method of inhibiting and dispersing calcium oxide deposit formation in coal-fired lime kilns, comprising burning the coal in the presence of from 1 to 2 pounds/ton of coal of a blend of 80 to 95%, by weight, magnesium oxide and 5 to 20%, by weight, copperoxychloride.

Abstract: The instant invention is directed to a process for lowering the electrical resistivity of fly ash comprising adding a cationic or anionic polymer to the fly ash.

Abstract: Gas streams contaminated with acid and acid precursor gases and vapors are purified by contacting the gas streams with activated carbon impregnated with sodium hydroxide.

Abstract: Gas streams contaminated with acid and acid precursor gases and vapors are purified by contacting the gas streams with activated carbon impregnated with sodium hydroxide.

Abstract: A carbon supported catalyst used for carbon monoxide oxidation is chemically modified by treating the activated carbon support with an oxidizing agent and/or a hydrophobic compound prior to impregnation with the catalyst mixture. The thus treated catalytic carbon is capable of oxidizing carbon monoxide in an air stream containing sulfur dioxide over an extended period of time.

Abstract: A carbon supported catalyst used for carbon monoxide oxidation is chemically modified by treating the activated carbon support with an oxidizing agent and/or a hydrophobic compound prior to impregnation with the catalyst mixture. The thus treated catalytic carbon is capable of oxidizing carbon monoxide in an air stream containing sulfur dioxide over an extended period of time.

Abstract: A novel impregnated activated carbon, containing from about 1.0 percent to about 15.0 percent by weight of MgO, has been found to be useful in a method of decolorizing a crude vegetable oil or a degummed vegetable oil, and removing organic acids therefrom, as well as in a process for making a refined edible vegetable oil wherein a crude vegetable oil is degummed, passed through the impregnated activated carbon, and subjected to steam distillation at reduced pressure. A novel method of preparing the MgO impregnated activated carbon has also been discovered.

Abstract: A novel impregnated activated carbon, containing from about 1.0 percent to about 15.0 percent by weight of MgO, has been found to be useful in a method of decolorizing a crude vegetable oil or a degummed vegetable oil, and removing organic acids therefrom, as well as in a process for making a refined edible vegetable oil wherein a crude vegetable oil is degummed, passed through the impregnated activated carbon, and subjected to steam distillation at reduced pressure. A novel method of preparing the MgO impregnated activated carbon has also been discovered.