本文選題：高酸原油 + 堿洗　； 參考：《現(xiàn)代化工》2017年03期

【摘要】：針對高酸原油堿洗脫酸過程中反應(yīng)速率較慢且乳化嚴(yán)重的問題,以十二烷基二甲基芐基氯化銨(DDBAC)為相轉(zhuǎn)移催化劑和乳化抑制劑,利用電導(dǎo)率、Zeta電位和全功能穩(wěn)定性分析等方法對原油與NaOH溶液之間反應(yīng)速率和乳狀液穩(wěn)定性進(jìn)行了研究。結(jié)果表明,DDBAC可以顯著提高原油與堿液反應(yīng)速率并且有效抑制乳化。在25℃,DDBAC質(zhì)量濃度為400 mg/L時,反應(yīng)速率提高了15倍;在反應(yīng)溫度為50℃,NaOH質(zhì)量分?jǐn)?shù)為4%時,隨著DDBAC質(zhì)量濃度的增加,堿液含油量和Zeta電位均顯著降低,當(dāng)DDBAC質(zhì)量濃度為300 mg/L時,4%NaOH溶液油含量降至79.69 mg/L,減少51.79%,Zeta電位從-38.087 mV降至-27.97 mV。原油酸值經(jīng)二級堿洗脫酸后可以降至0.41 mg(KOH)/g。
[Abstract]:In order to solve the problem of slow reaction rate and serious emulsification during alkali washing and deacidification of high acid crude oil, dodecyl dimethyl benzyl ammonium chloride (DDBAC) was used as phase transfer catalyst and emulsifying inhibitor. The rate of reaction between crude oil and NaOH solution and the stability of emulsion were studied by means of conductivity and Zeta potential and whole function stability analysis. The results show that DDBAC can significantly increase the reaction rate between crude oil and alkali solution and effectively inhibit emulsification. When the mass concentration of DDBAC at 25 鈩，

本文編號：1821688