Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Particle trap and preparation method thereof
The invention mainly relates to the technical field of DPF particle traps, the DPF particle trap comprises a particle trap body and a catalytic coating coated on the particle trap body, the body comprises the following raw materials by mass: 70%-80% of synthetic cordierite raw powder, 15%-20% of a composite pore-forming agent, 2%-6% of a binder and 1%-5% of a lubricating additive; the composite pore-forming agent comprises white carbon black, crystalline silicon micro-powder, pregelatinized starch powder and paraffin powder, and the ratio of the white carbon black to the crystalline silicon micro-powder to the pregelatinized starch powder to the paraffin powder is 10: 7.5: 1.5: 1. According to the particulate filter provided by the invention, on the premise of meeting the requirements of emission particulate control under new emission regulations (under a WHTC test cycle condition, PN is less than or equal to 6.0 * 10 < 11 >/kW.h), the pore diameter and the porosity of the particulate filter are adjusted, so that compared with a common product applied in the market, the airflow resistance is reduced by 20%, and meanwhile, the thermal shock resistance is not reduced.
本发明主要涉及DPF颗粒捕集器技术领域，其包括颗粒捕集器本体和涂覆在所述颗粒捕集器本体上的催化涂层，本体包括以下质量百分比的原料：合成堇青石生粉70%~80%、复合成孔剂15%~20%、粘结剂2%~6%以及润滑添加剂1%~5%；复合成孔剂包括白炭黑、结晶硅微粉、预糊化淀粉类粉末以及石蜡粉，且白炭黑、结晶硅微粉、预糊化淀粉类粉末以及石蜡粉之间的配比为10：7.5：1.5：1。本发明提供的颗粒捕集器，在满足新的排放规定下的排放颗粒物控制的要求的前提下（在WHTC测试循环条件下，PN≤6.0×1011个/kW·h），对其孔径、孔隙率调整，实现背压相比普通在市面上应用的产品，气流阻力下降20%，同时还兼顾耐热冲击能力不降低。
Particle trap and preparation method thereof
The invention mainly relates to the technical field of DPF particle traps, the DPF particle trap comprises a particle trap body and a catalytic coating coated on the particle trap body, the body comprises the following raw materials by mass: 70%-80% of synthetic cordierite raw powder, 15%-20% of a composite pore-forming agent, 2%-6% of a binder and 1%-5% of a lubricating additive; the composite pore-forming agent comprises white carbon black, crystalline silicon micro-powder, pregelatinized starch powder and paraffin powder, and the ratio of the white carbon black to the crystalline silicon micro-powder to the pregelatinized starch powder to the paraffin powder is 10: 7.5: 1.5: 1. According to the particulate filter provided by the invention, on the premise of meeting the requirements of emission particulate control under new emission regulations (under a WHTC test cycle condition, PN is less than or equal to 6.0 * 10 < 11 >/kW.h), the pore diameter and the porosity of the particulate filter are adjusted, so that compared with a common product applied in the market, the airflow resistance is reduced by 20%, and meanwhile, the thermal shock resistance is not reduced.
本发明主要涉及DPF颗粒捕集器技术领域，其包括颗粒捕集器本体和涂覆在所述颗粒捕集器本体上的催化涂层，本体包括以下质量百分比的原料：合成堇青石生粉70%~80%、复合成孔剂15%~20%、粘结剂2%~6%以及润滑添加剂1%~5%；复合成孔剂包括白炭黑、结晶硅微粉、预糊化淀粉类粉末以及石蜡粉，且白炭黑、结晶硅微粉、预糊化淀粉类粉末以及石蜡粉之间的配比为10：7.5：1.5：1。本发明提供的颗粒捕集器，在满足新的排放规定下的排放颗粒物控制的要求的前提下（在WHTC测试循环条件下，PN≤6.0×1011个/kW·h），对其孔径、孔隙率调整，实现背压相比普通在市面上应用的产品，气流阻力下降20%，同时还兼顾耐热冲击能力不降低。
Particle trap and preparation method thereof
一种颗粒捕集器及其制备方法
WU GUANG (Autor:in) / CHEN GUIXIANG (Autor:in)
17.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
C04B
Kalk
,
LIME
/
F01N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
,
Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein
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