HIGH TEMPERATURE HYDRATOR

• Main Authors: Rossi, Robert A, Heidel, Kenton Robert
• Format: Patent
• Language: English
• Published: 09.12.2021
• Subjects: APPARATUS THEREFOR; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; PAPER-MAKING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF CELLULOSE; PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS; REFRACTORIES; REGENERATION OF PULPING LIQUORS; SEPARATION; SLAG; TEXTILES; TRANSPORTING; TREATMENT OF NATURAL STONE

An apparatus includes a fluidized bed vessel with inlet ports arranged to receive at least one feed stream comprising calcium oxide, calcium carbonate, water, and a fluidizing gas into a fluidized bed vessel. The calcium oxide contacts the water to initiate a hydrating reaction to produce calcium hydroxide and heat. The fluidized bed vessel is configured to operate with a fluidization velocity that fluidizes and separates at least a portion of the calcium carbonate and at least a portion of the calcium oxide into a first fluidization regime, and at least a portion of the calcium hydroxide and at least another portion of the calcium oxide into a second fluidization regime. The apparatus further includes a heat transfer assembly configured to transfer heat of the hydrating reaction to the calcium carbonate, and a cyclone configured to separate a portion of the fluidization gas from a portion of at least one of the calcium hydroxide, calcium carbonate or calcium oxide.