【正文】 tent. Experiment results show that when the 1isopropyl3methylimidazolium thiocyanate [isoPmim][SCN] was serviced 沈陽化工大學(xué)學(xué)士學(xué)位論文 Abstract as the extractant[2,10], the removal of benzothiophene (BT) could reach 45 % at 40 ℃ for 1 h in one time with the IL/oil volume ratio = 1. After adding H2O2 oxidant and catalyst acid, the removal of benzothiophene (BT) could reach 50 % in one time under the same conditions. When the system was recycled for two times , sulfur pounds content in the fuels could dropped from 200 ppm to 50 ppm , reaching the national IV standard . Key word : Ionic liquid catalyst oxidation desulfurization refined fuels oil 沈陽化工大學(xué)學(xué)士學(xué)位論文 目錄 目 錄 引言 .......................................................................................................................... 1 第一章 文獻(xiàn)綜述 ................................................................................................ 2 油品脫硫的必要性 ....................................................................................... 2 世界各國對油 品硫含量的要求 ................................................................ 2 油品中硫的主要存在形式 ......................................................................... 3 常見油品脫硫工藝技術(shù) .............................................................................. 4 生物脫硫法 .............................................................................................. 4 萃取溶劑脫硫法 ..................................................................................... 4 絡(luò)合脫硫法 .............................................................................................. 5 吸附脫硫法 .............................................................................................. 5 催化脫硫法 .............................................................................................. 6 氧化脫硫法 .............................................................................................. 7 烷基化脫硫法 ......................................................................................... 7 離子液體脫硫 ................................................................................................ 8 離子液體的定義 ..................................................................................... 8 離子液體的結(jié)構(gòu)與分類 ....................................................................... 8 離子液體的制備 ..................................................................................... 10 離子液體的純化 ..................................................................................... 11 離子液體的功能化修飾 ....................................................................... 12 沈陽化工大學(xué)學(xué)士學(xué)位論文 目錄 離子液體的性質(zhì) ..................................................................................... 13 本課題的主要研究內(nèi)容 .............................................................................. 16 第二章 實(shí)驗(yàn)部分 ................................................................................................. 17 離子液體的合成 ............................................................................................ 17 實(shí)驗(yàn)試劑 ................................................................................................... 17 實(shí)驗(yàn)儀器 ................................................................................................... 17 合成離子液體實(shí) 驗(yàn)步驟 .............................................................................. 18 脫硫?qū)嶒?yàn) .......................................................................................................... 20 試驗(yàn)試劑與儀器 ..................................................................................... 20 硫的氧化萃取實(shí)驗(yàn) ................................................................................ 21 設(shè)計(jì)正交實(shí)驗(yàn) ......................................................................................... 22 含硫量的測定 ......................................................................................... 23 離子液體的回收 ............................................................................................ 24 離子液體的分析檢測 .................................................................................. 25 第三章 實(shí)驗(yàn)結(jié)果分析與討論 ......................................................................... 26 正交實(shí)驗(yàn)結(jié)果分析與討論 ......................................................................... 26 氧化劑對脫硫影響的探究 ......................................................................... 26 空白對照實(shí)驗(yàn) ......................................................................................... 27 氧化劑的有無對脫硫效果的影響 ..................................................... 28 循環(huán)萃取實(shí)驗(yàn)數(shù)據(jù)分析與討論 ................................................................ 29 對不同硫化合物脫除效果的考察 ............................................................ 30 對真實(shí)油品的脫硫?qū)嶒?yàn) .............................................................................. 31 沈陽化工大學(xué)學(xué)士學(xué)位論文 目錄 對制備的離子液體進(jìn)行結(jié)構(gòu)分析 ........................................................... 31 核磁檢測分析與討論 ........................................................................... 31 紅外色譜分析與討論 ........................................................................... 32 氧化萃取機(jī)理推測 ................................................................................ 35 結(jié)論 .......................................................................................................................... 36 參考文獻(xiàn) ................................................................................................................. 37 致謝 .......................................................................................................................... 40 附錄 ............................................................................................ 錯(cuò)誤 !未定義書簽。 催化氧化萃取循環(huán)兩次 后可使成品油中的硫含量由 200 ppm 降至 50 ppm 以下，達(dá)到國 Ⅳ 標(biāo)準(zhǔn) 。 分析結(jié)果表明利用本實(shí)驗(yàn)的 1異丙基 3甲基咪唑硫氰酸([isoPMIM][SCN])離子液體 作為萃取劑 [ 10]時(shí)，在 4