5种化工添加剂对石化用环丁砜热稳定性影响  

Effects of Five Chemical Additives on Thermal Stability of Sulfolane for Petrochemical Industry

作　　者：张欢[1] ZHANG Huan(Yan’an Vocational&Technical College,Yan’an 716000,China)

机构地区：[1]延安职业技术学院,延安716000

出　　处：《当代化工》2021年第9期2083-2086,共4页Contemporary Chemical Industry

基　　金：陕西省自然科学基金项目(项目编号:2019JQ-940);延安职业技术学院项目(项目编号:YZKY2002)。

摘　　要：以SO_(2)的释放量作为环丁砜热稳定性的评价指标,考察了5种化工添加剂对环丁砜热稳定性的影响。结果表明:在环丁砜用量100 g、氮气流量80 mL·min^(-1)、反应温度230℃、反应时间6 h的条件下进行实验,当HW-M-1投加量达0.10 g时,SO_(2)产生量为18.12 mg;当HW-D-01投加量达0.08 g时,SO_(2)的产生量最低,此时SO_(2)的产生量为12.15mg;当HW-H-1投加量达0.14g时,由环丁砜劣化产生的SO_(2)质量为14.85mg;当HW-L-01投加量达0.2 g时,由环丁砜劣化产生的SO_(2)质量为19.44 mg;当单乙醇胺投加量达0.04 g时,SO_(2)产生量为17.28 mg。综合比较,HW-D-01效果最好,并且在投加量和成本控制上具有一定优势。Taking the release of SO_(2) as the evaluation index of the thermal stability of sulfolane, effects of five chemical additives on the thermal stability of sulfolane were investigated. The experimental results showed that the SO_(2) yield was 18.12 mg when the amount of HW-M-1 was 0.10 g, the nitrogen flow rate was 80 m L·min^(-1), the reaction temperature was 230 ℃, and the reaction time was 6 h. When the dosage of HW-D-01 reached 0.08 g, the yield of SO_(2) was the lowest, 12.15 mg. When the dosage reached 0.14 g, the SO_(2) mass produced by sulfoxide degradation was 14.85 mg. When the dosage of HW-L-01 was up to 0.2 g, the SO_(2) mass produced by sulfoxide degradation was 19.44 mg. When the dosage of monoethanolamine reached 0.04 g, the yield of SO_(2) was 17.28 mg. The comprehensive comparison showed that HW-D-01 had the best effect, and had some advantages in volume and cost control.

关 键 词：环丁砜 热稳定性 化工添加剂 单乙醇胺 

分 类 号：TQ028[化学工程]