Method for preparing cement kiln flue gas denitration material from silicate minerals and application of cement kiln flue gas denitration material

• Main Authors: LAN MINGZHANG, CUI SUPING, MENG LINGQIN, HELIAN YIZHE, WANG YALI, MA XIAOYU
• Format: Patent
• Language: Chinese; English
• Published: 14.09.2021
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a method for preparing a cement kiln flue gas denitration material by utilizing silicate minerals and application of the cement kiln flue gas denitration material, and belongs to the fields of environmental materials, environmental catalysis and environmental protection. According to the invention, silicate minerals are used as raw materials, and the denitration porous material is prepared by a simple precipitation method and is used for NOx emission reduction of a cement kiln. The raw materials for preparing the denitration material are rich in reserves, complete in type and simple and convenient to obtain; the prepared denitration material is low in cost, short in flow, simple in process and suitable for industrial production; and the denitration performance is good, and the denitration rate at 900-1000 DEG C can reach 93% or above. In the denitration process, the ammonia utilization rate can be improved, the denitration efficiency can be improved, the pollution problems such as amm