文章信息/Info

Title:

Research Progress on Preparation of Monolithic Catalysts and Catalytic Purification of Engine Exhausts

文章編號:

1674-3962(2024)07-0603-23

作者:

陳思源; 高思宇; 周生冉; 張春雷; 于迪; 于學華; 趙震

1. 沈陽師范大學化學化工學院，遼寧 沈陽110034 2. 中國石油大學（北京）理學院，北京 102249

Author(s):

CHEN Siyuan;  GAO Siyu;  ZHOU Shengran;  ZHANG Chunlei;  YU Di;  YU Xuehua;  ZHAO Zhen

1. School of Chemistry and Chemical Engineering, Shenyang Normal University, Shenyang 110034, China 2. College of Science, China University of Petroleum�睟eijing, Beijing 102249, China

關(guān)鍵詞:

整體式催化劑; 制備工藝; 發(fā)動機尾氣; 催化凈化

Keywords:

monolithic catalyst;  preparation process;  engine exhaust gas;  catalytic purification

分類號:

O643.36；X701

DOI:

10.7502/j.issn.1674-3962.202310021

文獻標志碼:

A

摘要:

隨著世界工業(yè)規(guī)模的不斷擴大以及社會的不斷發(fā)展，越來越多的發(fā)動機應(yīng)用于工業(yè)生產(chǎn)中，但發(fā)動機排放的尾氣造成的環(huán)境污染問題也越來越嚴峻。如何將發(fā)動機尾氣污染物消除或凈化逐漸成為研究熱點。 目前，催化凈化技術(shù)是處理大氣污染物最有效、應(yīng)用最廣泛的技術(shù)之一。如何將開發(fā)的粉體催化劑有效地應(yīng)用到汽車尾氣催化凈化器并實現(xiàn)工業(yè)化應(yīng)用，其中最關(guān)鍵的因素是整體式催化劑的研發(fā)。介紹了整體式催化劑常用的制備工藝，如溶膠�材�膠法、水熱法、浸漬法等，并對相關(guān)的制備原理進行了描述；同時，對整體式催化劑催化凈化發(fā)動機尾氣如一氧化碳(CO)、氮氧化物(NOx)、碳氫化合物(HC)及炭煙顆粒（PM）等的研究進展進行了詳細的介紹；最后，對整體式催化劑在催化凈化發(fā)動機尾氣污染物中存在的問題和未來發(fā)展趨勢進行了總結(jié)和展望。

Abstract:

With the continuous expansion of the world’s industrial scale and the continuous development of society, engines have been applied in industrial production increasingly. However, the environmental pollutions caused by engine exhaust emissions are also becoming serious. How to eliminate or purify engine exhaust pollutants has become a research hotspot. At present, catalytic purification technology is one of the most effective and widely used technologies for the treatment of air pollutants. How to effectively apply the developed powder catalysts to the automobile exhaust catalytic purifier and achieve industrial application, the most key factor is the development of monolithic catalysts. In this paper, the common preparation processes of monolithic catalysts were introduced, such as sol-gel method, hydrothermal method, impregnation method, etc., and the related preparation principles were also described. Meanwhile, the research progress on monolith catalysts for catalytic purification of main pollutants in engine exhausts, such as carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons (HC), and soot particles, were reviewed in detail. Finally, the problems and development trends of the monolithic catalyst for the catalytic purification of engine exhaust pollutants were summarized and prospected.