CaO表面更新对微拟球藻催化热解制备生物油的影响

杨林; 张秀丽; 杨雅; 王许云; 徐秀峰; 郭庆杰

doi:10.3969/j.issn.0438-1157.2014.11.018

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CaO表面更新对微拟球藻催化热解制备生物油的影响

催化、动力学与反应器 | 更新时间：2025-12-10

- CaO表面更新对微拟球藻催化热解制备生物油的影响
- Production of bio-oil by catalytic pyrolysis of Nannochloropsis sp. over renewed suface CaO catalysts
- 化工学报 2014年第11期页码：4340-4346
- 作者机构：
  
  1. 青岛科技大学化工学院, 清洁化工过程山东省高校重点实验室,山东,青岛,266042
  2. 烟台大学应用催化研究所,山东,烟台,264005
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.11.018
  中图分类号： K6
- 网络首发：2014-11-05，
  
  纸质出版：2014-11-05
- 稿件说明：
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杨林, 张秀丽, 杨雅, 等. CaO表面更新对微拟球藻催化热解制备生物油的影响[J]. 化工学报, 2014,(11):4340-4346.

YANG Lin, ZHANG Xiuli, YANG Ya, et al. Production of bio-oil by catalytic pyrolysis of Nannochloropsis sp. over renewed suface CaO catalysts[J]. CIESC Journal, 2014, (11): 4340-4346.
杨林, 张秀丽, 杨雅, 等. CaO表面更新对微拟球藻催化热解制备生物油的影响[J]. 化工学报, 2014,(11):4340-4346. DOI： 10.3969/j.issn.0438-1157.2014.11.018.

YANG Lin, ZHANG Xiuli, YANG Ya, et al. Production of bio-oil by catalytic pyrolysis of Nannochloropsis sp. over renewed suface CaO catalysts[J]. CIESC Journal, 2014, (11): 4340-4346. DOI： 10.3969/j.issn.0438-1157.2014.11.018.

摘要

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.

Abstract

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 of Nannochloropsis 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 of Nannochloropsis sp. were C12—C17 saturated normal alkanes

which are more suitable for being upgraded to bio-diesel.

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