Continuous hydroxyketone production from furfural using Pd–TiO2 supported on activated carbon,Catalysis Science & Technology

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Continuous hydroxyketone production from furfural using Pd–TiO2 supported on activated carbon
Catalysis Science & Technology ( IF 4.4 ) Pub Date : 2020-08-17 , DOI: 10.1039/d0cy01556c
Maryam Pirmoradi _{1,

2,

3,

4,

5} , Robert J. Gulotty _{5,

6,

7,

8} , James R. Kastner _{1,

2,

3,

4,

5}

Affiliation

Pd–TiO₂, Pd–Cu and Pd–Fe activated carbon (AC) supported catalysts were employed for continuous selective hydrogenation of furfural. The effect of reaction parameters on product selectivity and space time yield (STY) was determined. Weak acid sites, generated by the Pd–TiO₂ catalyst opened the furan ring and resulted in a STY of 134 g L_cat⁻¹ h⁻¹ (610 g kg_cat⁻¹ h⁻¹) and 39% selectivity to 5-hydroxy-2-pentanone (5H2P), a hydrogenation product of furan ring opening, in a short residence time (7.6 min) at 180 °C and 300 psig. The Pd–Cu and Pd–Fe catalysts were selective towards tetrahydrofurfuryl alcohol and furfuryl alcohol. A STY of 259 g L_cat⁻¹ h⁻¹ (1182 g kg_cat⁻¹ h⁻¹) and 42% selectivity to furfuryl alcohol was achieved in the presence of the Pd–Cu catalyst at 180 °C and 300 psig (3.8 min). The Pd/TiO₂/AC catalyst shows promise for continuous production of 5H2P, a building block for many drugs and a precursor to 1,4-pentanediol.

中文翻译：

使用活性炭负载的Pd-TiO2从糠醛连续生产羟基酮

Pd–TiO ₂，Pd–Cu和Pd–Fe活性炭（AC）负载的催化剂用于糠醛的连续选择性加氢。确定了反应参数对产物选择性和时空产率（STY）的影响。Pd–TiO ₂催化剂产生的弱酸性位点打开了呋喃环，导致STY为134 g L _cat^-1 h ^-1（610 g kg _cat^-1 h ^-1），对5-羟基的选择性为39％ -2-戊酮（5H2P）是呋喃开环的氢化产物，在180°C和300 psig的短停留时间（7.6分钟）内。Pd-Cu和Pd-Fe催化剂对四氢糠醇和糠醇具有选择性。STY为259克L_猫在Pd-Cu催化剂的存在下，在180°C和300 psig（3.8分钟）的条件下，获得^-1 h^-1（1182 g kg_cat^-1 h^-1）和对糠醇的选择性为42％。Pd / TiO₂ / AC催化剂显示出有望连续生产5H2P，许多药物的基础材料和1,4-戊二醇的前体。

更新日期：2020-10-19

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