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Применить Всего найдено 2. Отображено 2.
29-08-2023 дата публикации

Water-resistant sulfur-resistant ultralow-temperature strip-shaped denitration catalyst and preparation method thereof

Номер: CN116651436A
Автор: WANG JU, XU HUI, XU YUANCHEN, LIANG YAN, WANG GUANGYING, XU XIAOLONG
Принадлежит:

The invention relates to the technical field of denitration catalysts, in particular to a water-resistant sulfur-tolerant ultralow-temperature strip-shaped denitration catalyst which comprises a carrier, an active component, a strength additive, a low-temperature and wide-temperature active additive and a defoaming agent. The carrier is a mixture of titanium dioxide and activated carbon; the active component is crystal phase V2O5; the strength auxiliary agent is glass fiber, boric acid and silicon dioxide; the low-temperature and wide-temperature active auxiliary agent is one or two of CeO2, CoO and Cr2O3; the defoaming agent is lactic acid. According to the invention, V2O5 is taken as an active component, a mixture of titanium dioxide and activated carbon is taken as a carrier, one or two of CeO2, CoO and Cr2O3 are taken as low-temperature and wide-temperature active auxiliary agents, and a low-temperature active window is widened through the synergistic effect of crystal phase V2O5 and ...

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Номер записи: 1
02-07-2020 дата публикации

HONEYCOMB SCR DENITRATION CATALYST HAVING THREE-DIMENSIONAL HIERARCHICAL POROUS STRUCTURE AND PREPARATION METHOD

Номер: WO2020135202A1
Автор: XIANG, Sheng, WANG, GuangYing, SONG, Jian, XU, Kui, WEI, Tong, CHEN, You Wen
Принадлежит:

Disclosed is a honeycomb SCR denitration catalyst having three-dimensional hierarchical porous structure. The catalyst is made from the following raw materials in weight parts: 80-100 parts of titanium dioxide, 1-2 parts of cotton pulp, 0.1-0.5 parts of multi-walled carbon nanotubes, 0.5-2.5 parts of carbon black, 1-3 parts of silicon dioxide, 5-10 parts of fiberglass, 1-3 parts of ammonium metavanadate, 5-10 parts of ammonium metatungstate, 5-10 parts of ceric nitrate hexahydrate, 5-15 parts of monoethanolamine, 1-2 parts of carboxymethyl cellulose, 1-2 parts of ethylene oxide, 5-15 parts of lactic acid, 1-2 parts of stearic acid, 15-25 parts of aqueous ammonia, and 30-50 parts of deionized water. Further disclosed is a method for preparing the catalyst. The prepared catalyst has a three-dimensional porous network with the pores orderly connecting with each other and a mesoporous structure, thereby improving the anti-compressive strength and maintaining the characteristic of large specific ...

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Номер записи: 2