TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The saline containing solution is a sodium chloride containing solution, or saline such as a salty sodium chloride (NaCl)-solution originating from an oil or gas field.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The method further includes returning the ammonium chloride of step (b) back to step (a) for generating alkaline solution; decomposing the alkaline metal carbonate of step (b) to carbon dioxide, and then returning carbon dioxide back to step (a) for reuse. The carbon dioxide in step (a) is derived from at least one selected from the exhaust gas from combustion processes; a process operable to regenerate monoethanolamine; and/or natural gas. The hydrochloride, calcium chloride, magnesium chloride or other material part from the decomposition are deposited or traded. The carbon dioxide needed for the process originates from decomposition of the alkaline metal bicarbonate, or their mixture. The alkaline metal bicarbonate and carbon dioxide is formed by heating alkaline metal carbonate in a calcinater, such as in a rotary furnace. The process involves(1) i) producing ammonium bicarbonate (NH4HCO3) in two steps, where in the first step, carbon dioxide is combined with the alkaline solution forming ammonium carbonate ((NH4)2CO3), which is then reacted with more carbon dioxide and water to form ammonium bicarbonate (NH4HCO3);(2) ii) reacting ammonium bicarbonate with brine water or saline water to form ammonium chloride and sodium-bicarbonate; iii) converting the dry sodium bicarbonate by heating to give anhydrite sodium carbonate or soda ash, where the carbon dioxide is optionally returned to step (i); and(3) iv) heating the ammonium chloride to decompose to give ammonia and hydrochloric acid, or adding calcium oxide to decompose to give ammonia and calcium chloride, and the ammonia is returned to step (i); or adding magnesium oxide to decompose to give ammonia and magnesium chloride, and the ammonia is returned to step (i), or decomposing to give ammonia and other material and ammonia is returned to step (i). The brine or saline water is added to second step of the process. EXAMPLE - No suitable example given.