Embodiments described herein relate to a method of geological CO.sub.2 storage via in-situ mineralization of trona, the method comprising injecting a mixture comprising CO.sub.2 and H.sub.2O in a geological formation comprising trona, wherein the H.sub.2O dissolves a portion of trona to form sodium carbonate in solution, and the CO.sub.2 reacts with the sodium carbonate to form sodium bicarbonate. Embodiments described herein further relate to a method of reactive absorption of CO.sub.2 and its simultaneous mineralization in trona comprising, mining of trona rock via solution mining to form a trona solution, reacting an input gas mixture comprising CO.sub.2 with the trona solution to form sodium bicarbonate. Embodiments described herein further relate to capture of carbon dioxide directly from air and storing it into solution mined trona as sodium bicarbonate.

Waste water is treated by contacting it with sodium to form hydrogen which is then contacted with air in a combustion chamber to produce clean water and heat.

Process for producing sodium carbonate with ammonia and/or for producing refined sodium bicarbonate, wherein: a low CO.sub.2 content gas generated by a unit for producing sodium carbonate with ammonia and/or generated by a unit for producing refined sodium bicarbonate is enriched into a CO.sub.2-enriched gas by using a CO.sub.2 concentration module, such as an amine-type or ammonia or PSA or TSA or cryogenic distillation or membrane-type CO.sub.2 concentration module, and said CO.sub.2-enriched gas has an increased CO.sub.2 content of: +10% (at least) to +90% (at most), by volume on a dry gas basis relative to the CO.sub.2 concentration of the low content gas, and the CO.sub.2-enriched gas is subsequently recycled to the unit for producing sodium carbonate with ammonia and/or to the unit for producing refined sodium bicarbonate, to produce sodium carbonate, or sodium bicarbonate, or to carbonate at least one part of effluent from the unit for producing sodium carbonate and/or from the unit for producing sodium bicarbonate.

Described herein are pharmaceutical compositions including a proton pump inhibitor and an antiparasitic drug. In some embodiments, the compositions can be formulated as a non-solid for oral administration. The compositions can be used to treat gastrointestinal conditions. Methods of treatment using the compositions are also described.

A method for preparing particles of alkali metal bicarbonate by crystallization from a solution of alkali metal carbonate and/or bicarbonate in the presence of an additive in the solution, selected from the sulfates, sulfonates, the polysulfonates, the amines, the hydroxysultaines, the polycarboxylates, the polysaccharides, the polyethers and the ether-phenols, alkali metal hexametaphosphate, the phosphates, the sulfosuccinates, the amidosulfonates, the aminosulfonates, preferably selected from the polycarboxylates having a mean molecular weight lower than 8000 g/mol, and such that the additive is present in the solution at a concentration of at least 1 ppm and preferably of at most 200 ppm.

A method for preparing particles of alkali metal bicarbonate by crystallization from a solution of alkali metal carbonate and/or bicarbonate in the presence of an additive in the solution, selected from the sulfates, sulfonates, the polysulfonates, the amines, the hydroxysultaines, the polycarboxylates, the polysaccharides, the polyethers and the ether-phenols, alkali metal hexametaphosphate, the phosphates, the sulfosuccinates, the amidosulfonates, the aminosulfonates, preferably selected from the polycarboxylates having a mean molecular weight lower than 8000 g/mol, and such that the additive is present in the solution at a concentration of at least 1 ppm and preferably of at most 200 ppm.

The present invention pertains to a method for producing blue hydrogen, the method including the steps of: obtaining a mixed gas containing hydrogen and carbon dioxide by performing a water gas shift (WGS) process with a product obtained through a steam methane reforming (SMR) process using natural gas and steam; preparing an aqueous sodium carbonate solution or an aqueous sodium hydroxide solution in a dissolving tank; performing a bicarbonate reaction by introducing the mixed gas into a carbonation reactor together with the aqueous sodium carbonate solution or the aqueous sodium hydroxide solution; obtaining high-purity hydrogen gas from the carbonation reactor; and obtaining sodium bicarbonate from downstream of the carbonation reactor.

The present invention pertains to a method for producing blue hydrogen, the method including the steps of: obtaining a mixed gas containing hydrogen and carbon dioxide by performing a water gas shift (WGS) process with a product obtained through a steam methane reforming (SMR) process using natural gas and steam; preparing an aqueous sodium carbonate solution or an aqueous sodium hydroxide solution in a dissolving tank; performing a bicarbonate reaction by introducing the mixed gas into a carbonation reactor together with the aqueous sodium carbonate solution or the aqueous sodium hydroxide solution; obtaining high-purity hydrogen gas from the carbonation reactor; and obtaining sodium bicarbonate from downstream of the carbonation reactor.

A process for preparing sodium bicarbonate particles, comprising the steps of: (a) adding at least one alkali metal carbonate to an aqueous solution in order to form an aqueous composition; wherein the alkali metal carbonate comprises sodium carbonate and wherein the aqueous composition comprises at least one polycarboxylic acid and/or the salts thereof, in an amount of at least 200 ppm based on the weight of the aqueous composition; and (b) precipitating solid particles comprising sodium bicarbonate crystals and separating said sodium bicarbonate particles from the aqueous composition, in order to obtain sodium bicarbonate particles and an aqueous mother liquor.

A process for preparing sodium bicarbonate particles, comprising the steps of: (a) adding at least one alkali metal carbonate to an aqueous solution in order to form an aqueous composition; wherein the alkali metal carbonate comprises sodium carbonate and wherein the aqueous composition comprises at least one polycarboxylic acid and/or the salts thereof, in an amount of at least 200 ppm based on the weight of the aqueous composition; and (b) precipitating solid particles comprising sodium bicarbonate crystals and separating said sodium bicarbonate particles from the aqueous composition, in order to obtain sodium bicarbonate particles and an aqueous mother liquor.