Composite oxygen carrier as well as preparation method and application thereof to gasification of solid fuel

• Main Authors: XU SHAOPING, SONG YANGBO
• Format: Patent
• Language: Chinese; English
• Published: 18.08.2017
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; CHEMISTRY; COMPOUNDS THEREOF; FIRELIGHTERS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; INORGANIC CHEMISTRY; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; NATURAL GAS; NON-METALLIC ELEMENTS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE

The invention provides a composite oxygen carrier as well as a preparation method and application thereof to the gasification of a solid fuel, and belongs to the technical field of energy chemical industry. The composite oxygen carrier is olivine loaded by copper oxide; the copper oxide accounts for 5 to 30 percent of the mass of the olivine. According to the method, an oxygen carrier is utilized for circularly transferring oxygen and heat; an absorbent is utilized for circularly removing carbon dioxide and carrying out desulfurization; meanwhile, the gasification of a raw material and the purification of a produced gas are realized. In addition, a calcination reactor and an air reactor are connected in series; the heat generated by the oxidation regeneration of the oxygen carrier/the combustion of a residual fuel can be used for realizing the calcination regeneration of the absorbent. The made oxygen carrier has the advantages of being low in cost, high in activity, good in abrasion resistance, high in cycli