雙功能團修飾的β-CD包合物的制備及其包合過程研究
本文選題:基質酸化 + 分流轉向; 參考:《西南石油大學》2015年碩士論文
【摘要】:油酸酰胺丙基甜菜堿(OAPB)用作基質酸化處理碳酸鹽儲層的酸液體系主劑,以實現(xiàn)酸液的分流,在國內(nèi)外都引起了廣泛的研究,p-環(huán)糊精(p-CD)改性得到的性能優(yōu)良的雙功能團修飾的p-環(huán)糊精衍生物(Bifu-p-CD)和OAPB一起用于酸液體系的主劑對分流酸的研究意義深遠。本文在p-CD分子結構引入羥丙基基團和單硬脂酸所縮水甘油酯基團,得到Bifu-β-CD,并與OAPB發(fā)生包合組裝得到主客體包合物,然對包合物溶液的表面張力和吸附量進行了研究,最后對加入Bifu-β-CD的基于OAPB的酸液體系的性能進行了評價。本課題研究的具體內(nèi)容如下: (1)單硬脂酸所縮水甘油酯(GM)、羥丙基-β-環(huán)糊精(HP-P-CD)、Bifu-β-CD和OAPB的合成:以硬質酸鈉和環(huán)氧氯丙烷為原料,加入一定量的相轉移催化劑得到GM;β-CD和環(huán)氧丙烷在NaOH強堿性環(huán)境中反應得到HP-β-CD; HP-β-CD和GM在有機堿吡啶作為溶劑和催化劑的弱堿性環(huán)境中合成Bifu-β-CD;通過酰基化和季銨化兩步反應得到OAPB。 (2)單硬脂酸所縮水甘油酯(GM)、羥丙基-β-環(huán)糊精(HP-β-CD). Bifu-β-CD和OAPB的結構表征:FT-IR和1H NMR證實GM和HP-β-CD的生成;FT-IR、1H NMR和XRD證明GM和HP-β-CD反應得到了一種新物質Bifu-β-CD; FT-IR表明成功合成了OAPB。 (3) Bifu-β-CD和OAPB主客體的構筑:通過超聲法得到了Bifu-β-CD和OAPB的包合物,FT-IR和1H NMR證實包合物的生成,SEM直觀地觀察到包合物的類似網(wǎng)狀結構。競爭紫外-可見光譜法得到包合物的包合常數(shù)為12.35L/mmol。 (4) Bifu-β-CD對OAPB水溶液以及基于OAPB的酸液體系的影響:Bifu-β-CD可以在一定程度上降低OAPB水溶液的表面張力和靜態(tài)吸附量,有利于酸化處理初期OAPB的流動,并削弱了其吸附滯留效應。通過對加入Bifu-β-CD的基于OAPB為主劑的酸液體系的性能評價可知,相比于沒有加Bifu-β-CD的情況下,加入Bifu-β-CD的基于OAPB為主劑的酸液增黏性能更好,實現(xiàn)了酸液轉向分流。
[Abstract]:Oleic acid aminopropylbetaine (OAPB) is used as the main agent of acid system for acidification of carbonate reservoir in order to realize acid separation. The bifunctional modified p-cyclodextrin derivatives (Bifu-p-CD) modified by p-CD and OAPB have been widely studied at home and abroad. In this paper, we introduce hydroxypropyl group and glycidyl group of monostearic acid into p-CD molecular structure to obtain Bifu- 尾 -CD. and assemble with OAPB to get host and guest inclusion complex. However, the surface tension and adsorption capacity of inclusion complex solution are studied. Finally, the performance of OAPB based acid system with Bifu- 尾-CD was evaluated. The main contents of this paper are as follows: (1) Synthesis of monostearic acid glycidyl ester (GM), hydroxypropyl 尾 -cyclodextrin (HP-P-CD), Bifu- 尾 -CD and OAPB: using sodium stearate and epichlorohydrin as raw materials, adding a certain amount of phase transfer catalyst to get GM; HP- 尾 -CD was obtained by reaction of 尾 -CD with propylene oxide in NaOH strong alkaline environment; HP- 尾 -CD and GM synthesized Bifu- 尾 -CDin in weakly alkaline environment with organic base pyridine as solvent and catalyst; OAPB. (2) monostearin was obtained by acylation and quaternary ammonium reaction. (2) Glycidyl acid (GM), hydroxypropyl 尾 -cyclodextrin (HP- 尾 -CD). The structures of Bifu- 尾 -CD and OAPB were characterized by FT-IR and 1H NMR. The formation of GM and HP- 尾 -CD was confirmed by FT-IR and 1H NMR. FT-IR1H NMR and XRD proved that GM reacted with HP- 尾 -CD to obtain a new substance Bifu- 尾 -CD-CD.FT-IR showed that OAPB was successfully synthesized. (3) the host and guest structures of Bifu- 尾 -CD and OAPB were successfully synthesized. The inclusion complexes of Bifu- 尾 -CD and OAPB were obtained by ultrasonic method. FT-IR and 1H NMR proved that the inclusion complexes were bifu- 尾 -CD and OAPB. The similar network structure of the inclusion compound was observed directly by SEM. The inclusion constant was 12.35 L / mmol. (4) the influence of Bifu- 尾 -CD on OAPB aqueous solution and OAPB-based acid system was obtained by competitive UV-Vis spectroscopy. To some extent, the surface tension and static adsorption capacity of OAPB aqueous solution could be reduced by: Bifu- 尾 -CD. It is advantageous to the flow of OAPB in the initial stage of acidification treatment and weakens the adsorption and retention effect of OAPB. Through the performance evaluation of the OAPB based acid system with Bifu- 尾 -CD, it can be seen that the acid system with Bifu- 尾 -CD is better in viscosity enhancement than that without Bifu- 尾 -CD, and the acid diversion is realized.
【學位授予單位】:西南石油大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:TE357.2;O647.2
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