光皮梾木油热解产物催化加氢制备生物燃料

doi:10.3969/j.issn.0253-2417.2020.05.006

摘要/Abstract

摘要：

以光皮梾木油热解产物为原料，进行催化加氢制备生物燃料的研究，通过单因素试验和响应面试验对催化加氢工艺进行了考察和优化。单因素试验得到较适宜的光皮梾木油热解产物催化加氢制备生物燃料参数：催化剂用量1.0%，反应温度170℃，反应压力2.0 MPa，反应时间150 min，最高转化率达到96.3%。响应面试验获得的优化参数为：催化剂用量1.05%、反应温度173℃、反应压力2.0 MPa，催化转化率最高为98.1%。通过气质分析、元素分析和FT-IR分析发现：加氢后烷烃增加8.15个百分点，氧元素质量分数由10.502%降低至2.392%，生物烃类化合物显著增加，质量分数达95.12%，同时生物燃料中碳链C₃~C₇较加氢反应前增加4.31个百分点，C₈~C₁₉增加18个百分点，产品结构更加接近现有化石燃料。

关键词: 光皮梾木, 响应面法, 催化加氢, 生物燃料, Ni-ZSM-5

Abstract:

The preparation of biofuels by catalytic hydrogenation from the pyrolysis products of Swida wilsoniana oil was studied. The catalytic hydrogenation process was investigated and optimized by single factor test and response surface experiments. The optimum parameters obtained by single factor test were catalyst dosage 1.0%, reaction temperature 170℃, reaction pressure 2.0 MPa, reaction time 150 min and the maximum conversion was 96.3%. The optimal parameters obtained by response surface experiments were catalyst dosage 1.05%, reaction temperature 173℃, reaction pressure 2.0 MPa, and the highest catalytic conversion rate was 98.1%. It was found by GC-MS, elemental analysis and FT-IR that after hydrogenation, alkanes increased by 8.15 percentage points, oxygen content decreased from 10.502% to 2.392%, and biological hydrocarbon compounds increased significantly, with the mass fraction of 95.12%. At the same time, the carbon chain C₃-C₇ in biofuels increased by 4.31 percentage point and C₈-C₁₉ increased by 18 percentage point compared with that of pyrolysis products. The product structure was closer to the existing fossil fuels.

Key words: Swida wilsoniana, response surface methodology, catalytic hydrogenation, bio-hydrocarbon fuel, Ni-ZSM-5

中图分类号:

TQ35
TS224.6

张爱华,唐娟,赖鹏英,何怡丹,黎继烈,肖志红. 光皮梾木油热解产物催化加氢制备生物燃料[J]. 林产化学与工业, 2020, 40(5): 43-49.

Aihua ZHANG,Juan TANG,Pengying LAI,Yidan HE,Jilie LI,Zhihong XIAO. Bio-hydrocarbon Fuel Preparation from Pyrolysate of Swida wilsoniana Fruit Oil by Catalytic Hydrogenation[J]. Chemistry and Industry of Forest Products, 2020, 40(5): 43-49.

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序号 No.	X₁ 催化剂用量/% catalytic dosage	X₂ 反应温度/℃ temperature	X₃ 反应压力/MPa pressure	Y 转化率/% conversion rate
1	1.0	140	2.5	89.01
2	1.0	200	2.5	92.46
3	1.2	170	1.5	91.19
4	1.0	170	2.0	98.48
5	1.2	200	2.0	92.25
6	1.0	170	2.0	96.86
7	0.8	200	2.0	88.50
8	1.0	140	1.5	89.69
9	0.8	140	2.0	86.35
10	1.0	200	1.5	88.15
11	1.0	170	2.0	97.84
12	0.8	170	2.5	87.69
13	1.2	140	2.0	90.70
14	0.8	170	1.5	84.31
15	1.2	170	2.5	90.19
16	1.0	170	2.0	97.34
17	1.0	170	2.0	98.58

方差来源 variance source	平方和 SS	自由度 df	均方 MS	F值 F value	P值 P value	显著性 significance
模型model	324.30	9	36.03	85.03	< 0.0001	**
X₁	38.19	1	38.19	90.13	< 0.0001	**
X₂	3.93	1	3.93	9.28	0.0187	*
X₃	4.52	1	4.52	10.65	0.0138	*
X₁X₂	0.090	1	0.090	0.21	0.6589
X₁X₃	4.80	1	4.80	11.32	0.0120	*
X₂X₃	6.23	1	6.23	14.69	0.0064	**
X₁²	102.18	1	102.18	241.14	< 0.0001	**
X₂²	49.93	1	49.93	117.84	< 0.0001	**
X₃²	87.12	1	87.12	205.60	< 0.0001	**
残差residual	2.97	7	0.42
失拟项lake of fit	0.80	3	0.27	0.49	0.7062
净残差pure error	2.17	4	0.54
总离差correlation total	327.26	16

样品sample	C/%	H/%	O/%	C/H
热解产物pyrolysis products	76.53	11.968	10.502	6.634
生物燃料bio-hydrocarbon fuel	84.83	12.778	2.392	6.639

样品 sample	碳链分布carbon chain distribution/%			物质成分composition/%
样品 sample	C₃~C₇	C₈~C₁₉	＞C₁₉	烷烃alkane	烯烃olefin	芳香烃aromatic	含氧化合物oxygenate
热解产物pyrolysis products	23.95	44.16	31.89	34.71	25.13	24.03	21.13
生物燃料bio-hydrocarbon fuel	27.89	62.75	9.36	42.86	30.08	21.42	5.64

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