تولید تتراهیدروفوران از انیدرید مالئیک با استفاده از کاتالیست‌های دوعملگر

نوع مقاله: مقاله پژوهشی

چکیده

در این تحقیق، تبدیل انیدرید مالئیک به تتراهیدروفوران در یک سیستم راکتوری دوغابی و با استفاده از کاتالیست‌های دوعملگر متشکل از جزء هیدروژناسیون Cu-ZnO-ZrO2 و زئولیت‌های مختلف به‌عنوان جزء آبگیر بررسی شد. کاتالیست‌های دوعملگر به روش هم‌رسوبی- ته‌نشینی تهیه و مشخصات آنها با آنالیزهای XRD و BET تعیین شدند. نتایج آزمایش‌های راکتوری با جزءهای آبگیر مختلف نشان دادند که کاتالیست دوعملگر شامل Cu-ZnO-ZrO2 و زئولیت H-Y کارایی بهتری از ترکیبات دیگر در تولید تتراهیدروفوران از انیدرید مالئیک دارد. همچنین نتایج آزمایش‌های راکتوری با نسبت‌های مختلف جزء هیدروژناسیون به جزء آبگیر نشان دادند که نسبت 3 به 1 از جزء هیدروژناسیون به جزء آبگیر در کاتالیست دوعملگر بهترین عملکرد را در تولید تتراهیدروفوران از انیدرید مالئیک دارد. در این حالت درصد تبدیل انیدرید مالئیک و گزینش پذیری به تتراهیدروفوران به ترتیب 100 درصد و 65 درصد بود. ضمناً همه کاتالیست‌های این تحقیق پایداری بسیار خوبی داشتند. در نهایت، نتیجه گرفته شد که کاتالیست دوعملگر Cu-ZnO-ZrO2/H-Y کارایی بالایی در تولید تتراهیدروفوران از انیدرید مالئیک دارد.
 

کلیدواژه‌ها


عنوان مقاله [English]

Production of Tetrahydrofuran from Maleic Anhydride Using Bifunctional Catalysts

چکیده [English]

n this research, the conversion of maleic anhydride to tetrahydrofuran was investigated in a slurry reactor system over bifunctional catalysts composed of Cu/ZnO/ZrO2 and various zeolites. Bifunctional catalysts were prepared by coprecipitating sedimentation method and characterized by surface area and XRD analyses. The experimental results showed that the bifunctional catalyst composed of Cu/ZnO/ZrO2 and H-Y zeolite is the optimum catalyst for the production of tetrahydrofuran from maleic anhydride. Also, it is concluded that the best ratio of hydrogenation catalyst to dehydration catalyst is 3:1. Under this situation, maleic anhydride conversion and tetrahydrofuran selectivity are 100% and 65% respectively. In all experiments, stabilities of catalysts were well. Ultimately, it is deduced that Cu-ZnO-ZrO2/H-Y bifunctional catalyst has a good performance in the production of tetrahydrofuran from maleic anhydride.
 

کلیدواژه‌ها [English]

  • Maleic Anhydride
  • Tetrahydrofuran
  • Bifunctional Catalyst
  • Cu-ZnO-ZrO2
  • H-Y Zeolite

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