【摘要】：我國原油含稠環(huán)芳烴較多,需要經(jīng)過裂解,才能變成汽油柴油和精細(xì)化學(xué)品,該過程需要很高的溫度,能耗大,而且稠環(huán)芳烴在裂解時(shí)容易碳化,堵塞反應(yīng)器和換熱器和管道造成重大的經(jīng)濟(jì)損失。如果能活化稠環(huán)芳烴在稠環(huán)芳烴表面引入羥基羧基得到新的物質(zhì),不僅能顯著降低碳化現(xiàn)象,甚至避免碳化現(xiàn)象,而且還能對(duì)生成的新物質(zhì)進(jìn)行利用。蒽在多環(huán)芳烴中屬于結(jié)構(gòu)簡單,反應(yīng)活性低的,如果可以將蒽進(jìn)行轉(zhuǎn)化,則可以說明本論文中的方法對(duì)其他多環(huán)芳烴同樣適用,采用固相法,分別借助了光催化和微波的方法,對(duì)蒽進(jìn)行活化,對(duì)催化劑種類、反應(yīng)時(shí)間、反應(yīng)溫度和微波功率進(jìn)行了探討,優(yōu)化和確定了其適宜條件。本論文的主要結(jié)論如下:(1)對(duì)比液相法、催化劑吸附法、固相法三種方法,確定了固相法為最佳,設(shè)計(jì)了一套固相法的反應(yīng)方案;確定了紫外可見分光光度法與氣相色譜質(zhì)譜聯(lián)用法測(cè)定反應(yīng)前后物質(zhì)的量;并確定了蒽的標(biāo)準(zhǔn)濃度曲線。(2)采用固相光催化技術(shù)處理蒽的實(shí)驗(yàn)中,采用正交實(shí)驗(yàn)法,對(duì)催化劑種類、反應(yīng)時(shí)間、反應(yīng)溫度進(jìn)行探討,影響因素的主次順序?yàn)?催化劑種類反應(yīng)溫度反應(yīng)時(shí)間;在選用鉍酸鈉的情況下,對(duì)反應(yīng)溫度和反應(yīng)時(shí)間分別進(jìn)行了實(shí)驗(yàn)分析,結(jié)果顯示最佳條件為,鉍酸鈉,80℃,8h,蒽的轉(zhuǎn)化率達(dá)到97.85%,并產(chǎn)生了中間產(chǎn)物蒽醌,生成轉(zhuǎn)化率為81.32%。(3)采用微波活化多環(huán)芳烴的實(shí)驗(yàn)中,采用正交實(shí)驗(yàn)法,對(duì)催化劑種類、反應(yīng)時(shí)間、微波功率進(jìn)行探討;對(duì)兩種催化劑分別進(jìn)行反應(yīng)時(shí)間和微波功率的實(shí)驗(yàn)分析,結(jié)果顯示,二氧化錳下最佳條件為,700W,20min,蒽的轉(zhuǎn)化率為72.26%,但是未產(chǎn)生蒽醌;鉍酸鈉最佳條件為700W,20min,蒽的轉(zhuǎn)化率為78.65%,有中間產(chǎn)物蒽醌,生成轉(zhuǎn)化率為43.79%。
[Abstract]:The crude oil in China is rich in heavy cyclic aromatic hydrocarbons and needs to be cracked in order to become gasoline, diesel and fine chemicals. The process requires very high temperature, high energy consumption and easy carbonization of polycyclic aromatic hydrocarbons during cracking. Blockage of reactors and heat exchangers and pipes causes significant economic losses. If the polycyclic aromatic hydrocarbons can be activated to introduce hydroxyl carboxyl groups on the surface of the polycyclic aromatic hydrocarbons to obtain new substances, not only the carbonation phenomenon can be significantly reduced, but also the carbonation phenomenon can be avoided, and the new substances can also be utilized. Anthracene belongs to simple structure and low reactive activity in polycyclic aromatic hydrocarbons. If anthracene can be transformed, it can be concluded that the method in this paper is also applicable to other polycyclic aromatic hydrocarbons. The solid phase method is adopted with the aid of photocatalysis and microwave method, respectively. The type of catalyst, reaction time, reaction temperature and microwave power of anthracene were discussed. The optimum conditions were optimized and determined. The main conclusions of this paper are as follows: (1) compared with liquid phase method, catalyst adsorption method and solid phase method, the solid phase method is the best, and a set of solid-phase reaction scheme is designed. The amount of substance before and after the reaction was determined by UV-vis spectrophotometry and gas chromatography-mass spectrometry (GC-MS). The standard concentration curve of anthracene was determined. (2) in the experiment of treating anthracene by solid-phase photocatalysis, the type of catalyst, reaction time and reaction temperature were discussed by orthogonal experiment. The order of influencing factors is as follows: reaction time of reaction temperature of catalyst type; Under the condition of sodium bismuth, the reaction temperature and reaction time were analyzed respectively. The results showed that the conversion of anthracene reached 97.85% at 80 鈩，

本文編號(hào)：2465283