CAJ | 학술논문

分别以水合化法和热缺陷法对CaO进行表面更新，用N2物理吸附（BET）、X射线衍射（XRD）、扫描电镜（SEM）和CO2吸附技术对表面更新后的CaO进行了结构表征，并利用制备的CaO在管式炉内对微拟球藻进行了催化热解研究。结果表明：两种更新方法均能明显提高CaO的比表面积、介孔数目及孔体积。CaO的表面更新处理没有改变基本的晶相结构，仍为立方晶型。两种更新方法均能显著提高CaO的催化活性，且改善了产物油品的性能。相比较而言，水合CaO的催化脱氧性能较高，催化热解得到的生物油产率为28.65%、含氧量为4.67%、热值高达38.600 kJ·g-1、运动黏度低（8.011 mm2·s-1）、含水率低（2.49%），且催化热解后的生物油以C12～C17饱和直链烷烃为主，适合进一步精制为生物柴油。
분별이수합화법화열결함법대CaO진행표면경신，용N2물리흡부（BET）、X사선연사（XRD）、소묘전경（SEM）화CO2흡부기술대표면경신후적CaO진행료결구표정，병이용제비적CaO재관식로내대미의구조진행료최화열해연구。결과표명：량충경신방법균능명현제고CaO적비표면적、개공수목급공체적。CaO적표면경신처리몰유개변기본적정상결구，잉위립방정형。량충경신방법균능현저제고CaO적최화활성，차개선료산물유품적성능。상비교이언，수합CaO적최화탈양성능교고，최화열해득도적생물유산솔위28.65%、함양량위4.67%、열치고체38.600 kJ·g-1、운동점도저（8.011 mm2·s-1）、함수솔저（2.49%），차최화열해후적생물유이C12～C17포화직련완경위주，괄합진일보정제위생물시유。
The surface of calcium oxide (CaO) was renewed by using hydration-calcination and thermal calcinations methods, respectively. The structure and property of renewed CaO was characterized by BET, XRD, SEM and CO2-TPD techniques. Meanwhile, the catalytic pyrolysis ofNannochloropsis sp. was investigated in a fixed-bed reactor. It is shown that two preparation methods for CaO obviously increase the specific surface area, meso-pore numbers, and pore volume. The renewed surface CaO catalysts were of typical face-centered structure and of higher catalyst activity, and could improve bio-oil product quantity. The yield of bio-oil produced on the hydration-calcination CaO was 28.65%, which was of higher calorific value (38.600 kJ·g-1), lower kinetic viscosity (8.011 mm2·s-1), and lower moisture content (2.49%). The main ingredients of bio-oil from catalytic pyrolysis ofNannochloropsis sp. were C12-C17 saturated normal alkanes, which are more suitable for being upgraded to bio-diesel.