基于分子蒸馏的模拟生物油温和加氢研究

陈军昊; 卢亮; 王树荣

基于分子蒸馏的模拟生物油温和加氢研究

浙江大学能源清洁利用国家重点实验室, 浙江杭州 310027

基金项目:

国家科技支撑计划项目 2015BAD15B06

国家自然科学基金面上项目 51476142

国家重点基础研究发展规划 973 Program, 2013CB228101

详细信息

中图分类号: TK6
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- 被引次数: 0
出版历程
- 收稿日期: 2017-05-03
- 修回日期: 2017-06-11
- 网络出版日期: 2021-01-23
- 刊出日期: 2017-09-10

Mild hydrogenation of simulated bio-oil based on molecular distillation

State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China

Funds:

National Science and Technology Supporting Plan Through Contract 2015BAD15B06

National Natural Science Foundation of China 51476142

National Basic Research Program of China 973 Program, 2013CB228101

More Information

Corresponding author: WANG Shu-rong, Tel:13968043221, E-mail:zzk@zjut.edu.cn

摘要

摘要: 在固定床反应器上开展模拟生物油温和加氢实验，确定300℃/4 MPa为最佳工况，此条件下反应物除苯酚和愈创木酚外完全转化，液体产物选择性为85.0%，有效氢碳比从1.266提高到1.554，液体产物组成优化，酚类和酸类含量明显下降，反应活性明显改善，有利于后续催化裂化反应。
- 生物油 /
- 模化物 /
- 温和加氢 /
- 有效氢碳比
Abstract: A mild hydrogenation of simulated bio-oil was carried out in a fixed-bed reactor. Based on the experimental results, 300℃/4 MPa was chosen as an optimum condition for the mild hydrogenation, the simulated bio-oil was nearly completely converted. Besides, the liquid product selectivity achieved 85.0% and its (H/C)_eff was significantly promoted from 1.266 to 1.554. The liquid composition was greatly improved and a notable decrease of phenols and acids contents was observed. In this case, the product activity was significantly enhanced and then the subsequent catalytic cracking was favored.
- bio-oil /
- model compounds /
- mild hydrogenation /
- effective hydrogen to carbon ratio

HTML全文

图 1 生物油催化加氢固定床反应系统示意图

Figure 1 Fixed-bed reaction system for bio-oil catalytic hydrogenation

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图 2 Pd/nano-SiO₂催化剂还原后的TEM照片

Figure 2 TEM image of Pd/nano-SiO₂

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图 3 不同工况下模拟生物油的整体转化率

Figure 3 Overall conversions of simulated bio-oil under different conditions

(a): the effect of reaction pressure (200℃); (b): the effect of reaction temperature (4MPa) : hydroxyacetone; : cyclopentanone; : acetic acid; : guaiacol; : phenol; : furfural

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图 4 不同工况下液体产物的有效氢碳比

Figure 4 (H/C)_eff of liquid products under different conditions

a: 2MPa; b: 3MPa; c: 4MPa

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图 5 300℃/4MPa下液体产物的GC-MS谱图

Figure 5 GC-MS spectrum of liquid products (300℃/4MPa)

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图 6 反应物的主要反应路径示意图

Figure 6 Main reaction pathway of reactants

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表 1 反应后催化剂的积炭

Table 1 Coke deposition of spent catalysts

Conditions(℃/MPa)	Coke/Catalyst(g/g)
200/2	0.073
250/2	0.063
300/2	0.055
200/3	0.075
250/3	0.061
300/3	0.057
200/4	0.071
250/4	0.059
300/4	0.055

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表 2 不同工况下产物的选择性

Table 2 Product selectivities under different conditions

Conditions(℃/MPa)	Product selectivity s/%
Conditions(℃/MPa)	liquid products	CO	CH₄	C₂H₆	C₃H₈	C₄H₁₀
200/2	89.3	0	0	0	0	0.43
250/2	92.3	0	0.03	0.04	0.43	0.37
300/2	88.7	2.01	0.09	0.37	0.51	0.22
200/3	88.8	0	0	0	0	0.29
250/3	91.9	0	0.02	0.03	0.42	0.26
300/3	87.1	2.27	0.11	0.39	0.51	0.33
200/4	88.0	0	0	0	0	0.30
250/4	91.9	0	0	0.03	0.50	0.26
300/4	85.0	3.00	0.28	0.78	0.50	0.28

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