發(fā)布時(shí)間：2018-06-16 09:09

  本文選題：催化裂化催化劑 + 噴霧干燥��； 參考：《北京化工大學(xué)》2015年碩士論文

【摘要】：催化裂化催化劑制備過(guò)程中產(chǎn)生的三股尾氣,都不能完全達(dá)到現(xiàn)行的尾氣國(guó)家排放標(biāo)準(zhǔn)。本文通過(guò)優(yōu)化焙燒尾氣治理系統(tǒng)的噴淋水量和噴淋覆蓋面積,延長(zhǎng)尾氣在吸收塔的停留時(shí)間,改善吸收效果,在一級(jí)急冷+一級(jí)吸收工藝的基礎(chǔ)上,開(kāi)發(fā)了一級(jí)急冷+二級(jí)吸收尾氣處理技術(shù),該技術(shù)應(yīng)用于催化裂化催化劑焙燒尾氣的治理；通過(guò)對(duì)尾氣治理技術(shù)的比選和對(duì)一級(jí)急冷+二級(jí)吸收處理技術(shù)的優(yōu)化、工業(yè)運(yùn)行數(shù)據(jù)分析,確定了催化劑氣流干燥尾氣使用干式、濕式相結(jié)合的布袋除塵器+一級(jí)急冷+二級(jí)吸收的處理工藝；針對(duì)催化劑噴霧干燥尾氣進(jìn)行了一級(jí)急冷+二級(jí)吸收處理技術(shù)的優(yōu)化試驗(yàn)、湍沖逆噴動(dòng)力波試驗(yàn)和吸收水中物料回用試驗(yàn),確定了噴霧干燥尾氣使用湍沖逆噴動(dòng)力波+文丘里洗滌工藝。催化裂化尾氣治理成套技術(shù)工業(yè)應(yīng)用后,通過(guò)不斷優(yōu)化動(dòng)改,各套尾氣系統(tǒng)都達(dá)到了長(zhǎng)周期穩(wěn)定運(yùn)行的要求,生產(chǎn)過(guò)程中產(chǎn)生的尾氣都完全達(dá)標(biāo)排放,粉塵排放濃度不僅滿足≤120毫克／立方米的國(guó)家排放標(biāo)準(zhǔn),而且達(dá)到≤30毫克／立方米的地方政府要求。其中,動(dòng)力波+文丘里洗滌技術(shù)、脈沖袋式除塵器+一級(jí)急冷+二級(jí)吸收技術(shù)在其它三套催化劑裝置成功進(jìn)行了推廣應(yīng)用,使催化劑齊魯分公司的催化劑生產(chǎn)裝置的尾氣粉塵含量都達(dá)到了地方排放標(biāo)準(zhǔn),保證了企業(yè)的正常生產(chǎn)和可持續(xù)發(fā)展；而且,實(shí)現(xiàn)了氣流干燥尾氣余熱和噴霧尾氣吸收水中物料的回收利用,提高了催化劑裝置的收率,降低了生產(chǎn)成本和能耗。
[Abstract]:The three streams of tail gas produced during the preparation of FCC catalyst can not fully meet the current national emission standards. In this paper, the spray water quantity and spray coverage area of roasting tail gas treatment system are optimized, the residence time of tail gas in the absorption tower is prolonged, and the absorption effect is improved. This technology was applied to the treatment of catalytic cracking catalyst roasting tail gas, and the comparison and selection of the tail gas treatment technology and the optimization of the first stage rapid cooling secondary absorption treatment technology were carried out. Based on the analysis of industrial operation data, the treatment process of first-order rapid cooling and second-order absorption of catalyst air-flow drying tail gas was determined by combining dry and wet bag dust catcher. In this paper, the optimization test of first-order and second-order absorption treatment technology for tail gas of catalyst spray drying, the dynamic wave test of turbulent backflow spray and the reuse test of absorbing water material were carried out. The spray-drying tail gas was washed by turbulent inverse spray power wave Venturi. After the industrial application of the complete set of technology for treating FCC tail gas, through continuous optimization and modification, each set of tail gas systems has met the requirements of long-term stable operation, and the tail gas produced in the production process has completely reached the standard of discharge. The dust emission concentration not only meets the national emission standard of 鈮，

本文編號(hào)：2026151