Production of bio-oil by catalytic pyrolysis of Nannochloropsis sp. over renewed suface CaO catalysts

YANG Lin; ZHANG Xiuli; YANG Ya; WANG Xuyun; XU Xiufeng; GUO Qingjie

doi:10.3969/j.issn.0438-1157.2014.11.018

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Production of bio-oil by catalytic pyrolysis of Nannochloropsis sp. over renewed suface CaO catalysts

更新时间：2025-12-10

- Production of bio-oil by catalytic pyrolysis of Nannochloropsis sp. over renewed suface CaO catalysts
- CIESC Journal Issue 11, Pages: 4340-4346(2014)
- 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
  CLC： K6
- Online First：05 November 2014，
  
  Published：05 November 2014
- 稿件说明：
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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：

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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