镍基介孔Y催化微藻生物柴油制航空燃油

CATALYTIC HYDROPROCESSING OF MICROALGAE BIODIESEL TO RENEWABLE JET FUELS OVER Ni/MESO-Y DIFUNCTIONAL CATALYST

采用介孔Y分子筛担载金属镍制成双功能催化剂,并在固定床连续流反应器中催化微藻生物柴油转化为航空燃油。采用氨吸附(NH3-TPD)、氮吸附和扫描电子显微镜(SEM)对催化剂表征:介孔Y分子筛负载金属镍后,形成具有强酸基断键中心和镍基脱氧中心的双功能催化剂,能有效断裂碳链脱除原料中的氧。同时探究反应温度和藻油流速对航空燃油选择性及其成分含量的影响。随着反应温度的升高和流速的增大,航油选择性先增后减,当反应温度为280℃和藻油流速为0.02 mL/min时,航油选择性提高到90.19%,航油中烷烃含量达到最高值(86.43%)。

In this paper,meso-Y zeolite was used to carry metal nickel into bi-functional catalyst,and in the fixed bed continuous flow reactor to catalyze microalgae biodiesel into jet fuel. The Ammonia adsorption(NH3-TPD),nitrogen adsorption and scanning electron microscope(SEM)were used to characterize the catalyst:metal nickel was loaded to form a bi-functional catalyst with strong acid base bond center and nickel base deoxidation center which could effectively break the carbon chains and remove the oxygen in the feedstock. At the same time,the effects of reaction temperature and microalgae biodiesel velocity on the selectivity of aviation fuel and the content of its components were investigated. When the reaction temperature was 280 ℃ and the flow rate of algae oil was 0.02 mL/min,the selectivity of jet fuel was raised to 90.19% and the highest content of alkanes in jet fuel was 86.43%.