Provided is an inactive compound that is activated by reaction with ozone into an active compound having a carbonyl oxygen. Also provided is a method of activating the above inactive compounds. Further provided is a method of treating a disease or condition in a subject using the above compound at a site that is not exposed to atmospheric ozone. Additionally provided is a method of determining internal ozonolysis in a subject using the above compound. Also provided is a molecule less than 1000 mw, having a double bond that is reactive with ozone, and forms a nontoxic compound after reacting with ozone. Further provided is a method of degrading ozone.

A method for removing or preventing a microbial growth, biofilm, biomass and/or mineral deposit on a hard surface inside an SO.sub.2 scrubber is disclosed. In particular, biocide compositions may be dosed in pulse or continuously for the reduction and prevention of biofilms on the hard surfaces inside an SO.sub.2 scrubber. A biocide composition disclosed here uses one or more non-oxidizing biocides, especially a mixture of one or more quaternary ammonium compounds and one or more other biocides.

In accordance with some embodiments herein, a filtering product is provided. The filtering product includes titanium dioxide (TiO.sub.2), cetrimonium bromide (CTAB) and ascorbic acid (C.sub.6H.sub.8O.sub.6). The filtering product may be used for filtering smoke of a water pipe. Alternatively and/or additionally, the filtering product may be used for filtering gas.

The present invention is directed to the removal of mercury in a gas dehydration process using thermally table chemical additives.

The present invention is directed to the removal of mercury in a gas dehydration process using thermally table chemical additives.

The specification discloses methods and apparatus for producing carbon black from CO.sub.2 by way of a reactor having a chamber filled with a molten salt electrolyte. On application of a current through one or more cathodes and one or more anodes affixed to the reactor, dissolved CO.sub.2 within the molten salt electrolyte is converted into carbon black and oxygen gas. The carbon black is collected.

Methods and systems for producing aromatics and light olefins from a mixed plastics stream are described. The method may include feeding a plastic feedstock to a dechlorination operation to melt the plastic feedstock to release HCl and generate a liquid plastic stream; feeding the liquid plastic stream to a pyrolysis reactor, the pyrolysis reactor to generate hydrocarbon vapors; feeding the hydrocarbon vapors to an acid gas removal reactor with a solid inorganic alkali salt disposed within the reaction vessel to remove residual HCl and sulfur-containing compounds from the hydrocarbon vapors to generate a plastic derived oil; and feeding the plastic derived oil to a steam enhanced catalytic cracking reactor to generate a product stream comprising light olefins having a carbon number of C.sub.2-C.sub.4 and aromatics. The associated system for processing mixed plastics into aromatics and light olefins is also described.

Methods and systems for producing aromatics and light olefins from a mixed plastics stream are described. The method may include feeding a plastic feedstock to a dechlorination operation to melt the plastic feedstock to release HCl and generate a liquid plastic stream; feeding the liquid plastic stream to a pyrolysis reactor, the pyrolysis reactor to generate hydrocarbon vapors; feeding the hydrocarbon vapors to an acid gas removal reactor with a solid inorganic alkali salt disposed within the reaction vessel to remove residual HCl and sulfur-containing compounds from the hydrocarbon vapors to generate a plastic derived oil; and feeding the plastic derived oil to a steam enhanced catalytic cracking reactor to generate a product stream comprising light olefins having a carbon number of C.sub.2-C.sub.4 and aromatics. The associated system for processing mixed plastics into aromatics and light olefins is also described.

This disclosure relates to improved methods for alkali metal cyanide production, particularly to improved methods for sodium cyanide production. The improved method of producing sodium cyanide involves the step of contacting hydrogen cyanide with an aqueous solution of sodium carbonate or of a mixture of sodium carbonate and sodium bicarbonate to produce a sodium cyanide solution.

The present invention provides a new method for fixing carbon dioxide. The method for fixing carbon dioxide of the present invention includes: a first contact step of bringing a solution containing sodium hydroxide into contact with a gas containing carbon dioxide; and a second contact step of adding at least one of a chloride of a Group 2 element or a chloride of a divalent metal element to the solution after the first contact step.