METHOD AND SYSTEM FOR TREATING A STEAM CONDENSATE GENERATED BY A HIGH-PRESSURE GENERATOR OF A CARBON DIOXIDE ABSORPTION SOLUTION

• Main Author: SINGH, Udaypal
• Format: Patent
• Language: English
• Published: 19.09.2024
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; AMMONIA; BLASTING; CHEMISTRY; COMPOUNDS THEREOF; CYANOGEN; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; HEATING; INORGANIC CHEMISTRY; LIGHTING; LIQUEFIED PETROLEUM GAS; LUBRICANTS; MECHANICAL ENGINEERING; METALLURGY; METHODS OF STEAM GENERATION; NATURAL GAS; NON-METALLIC ELEMENTS; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; STEAM BOILERS; STEAM GENERATION; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TRANSPORTING; WEAPONS

A method comprising the steps of:a) capturing carbon dioxide in a carbon dioxide absorption unit using a carbon dioxide absorption solution;b) feeding the carbon dioxide absorption solution comprising absorbed carbon dioxide and generated in step a) to the high-pressure regenerator of a heat exchange system comprising the high-pressure regenerator and a steam-fired reboiler; andc) supplying low-pressure steam at a pressure ranging from 3.2 to 3.5 kg/cm2 to the steam-fired reboiler for supplying heat to the high-pressure regenerator wherein, the carbon dioxide absorption solution is heated, thereby producing a steam condensate and a regenerated carbon dioxide absorption solution;characterized in that the method further comprises the step of:d) directly supplying the steam condensate produced in step c) to a de-aerator, thereby producing an aqueous solution suitable for producing steam with an oxygen content lower than 20 ppb.