Effects of Ni Loaded Catalyst With Varying Molar Ratio of Si to Al on the Catalytic Cracking of Mixed Waste Plastic

doi:10.3696/j.issn.1672-6952.2010.03.008

Journal of Liaoning Petrochemical University ›› 2010, Vol. 30 ›› Issue (3): 28-31.DOI: 10.3696/j.issn.1672-6952.2010.03.008

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Effects of Ni Loaded Catalyst With Varying Molar Ratio of Si to Al on the Catalytic Cracking of Mixed Waste Plastic

WANG Ji-lin¹，WANG Lu-lu¹，WANG He²

1.School of Petrochemical Engineering, Liaoning Shihua University, Fushun Liaoning 113001, P.R.China; 2.PetroChina Company Limited, Shanghai Marketing Subsidiary Company, 
Refined Oil Test Center, Shanghai 200232, P.R.China

Received:2010-03-23 Published:2010-09-25 Online:2017-07-05

硅铝配比对镍基催化剂催化废塑料裂解产物的影响

王吉林1,王璐璐1,王鹤2

1.辽宁石油化工大学石油化工学院,辽宁抚顺113001;2.中国石油上海销售分公司成品油检验中心,上海200232

作者简介:王吉林(1978-),男,辽宁海城市,讲师,在读博士。

Abstract

Abstract:

Three Ni/SiO₂-γ-Al₂O₃ catalysts with varying molar ratios of Si to Al were prepared by incipient wetness impregnation. The acid property and crystalline phase of these catalysts were characterized by FT-IR of adsorbed pyridine and XRD, respectively. The activities of the above catalysts were also investigated by the catalytic cracking experiment of mixed plastic. With decreasing of molar ratio of Si to Al, the total acid amounts of catalyst were increased, which induce gas and carbon yield increased and yield decreased. However, excess acid amount caused deep cracking, and then the gasoline fraction yield decreased. The 2^#catalyst of all the acid catalysts prepared is the best in this work and exhibits a very high catalytic activity (the gasoline fraction yield exceeds to 40%) on the catalytic cracking process.The gasoline compositions in the products of catalytic cracking were characterized by gas chromatograph. The results show that the acid property of the catalyst can be improved by modulating the molar ratio of Si to Al, and therefore the selectivity of the catalyst can be changed to get more gasoline fraction with high octane number.

Key words: Mixed waste plastic , Catalytic cracking , , Molar radio of Si to Al , , Ni loaded catalyst

摘要： 采用浸渍法制备了3种不同硅铝物质的量比的负载镍的催化剂,通过吡啶吸附傅里叶变换红外(FT
-IR)和X-衍射(XRD)分别对催化剂的酸性、酸量及晶体类型进行表征,同时考察该催化剂在混合废塑料催化裂
解制燃料油过程中的催化活性。结果表明,随着硅铝物质的量比的降低,催化剂的总酸量增加,产物中气体收率和
积碳收率增加,残渣收率降低,但酸量过高引起废塑料深度裂解,导致产物中汽油馏分收率下降。结果表明,最佳硅
铝物质的量比为1∶3,由此得到的负载镍的2# 催化剂可以使汽油馏份收率大于40%。实验还对催化裂解得到的汽
油馏分进行了气相色谱分析。通过调变催化剂的硅铝物质的量比,可以改变其酸性,从而有利于改善催化剂的选择
性,有利于得到辛烷值较高的汽油馏份。

关键词: 混合废塑料 , 催化裂解 , 硅铝物质的量比 , 镍基催化剂

WANG Ji-lin，WANG Lu-lu，WANG He. Effects of Ni Loaded Catalyst With Varying Molar Ratio of Si to Al on the Catalytic Cracking of Mixed Waste Plastic[J]. Journal of Liaoning Petrochemical University, 2010, 30(3): 28-31.

王吉林,王璐璐,王鹤. 硅铝配比对镍基催化剂催化废塑料裂解产物的影响[J]. 辽宁石油化工大学学报, 2010, 30(3): 28-31.

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Effects of Ni Loaded Catalyst With Varying Molar Ratio of Si to Al on the Catalytic Cracking of Mixed Waste Plastic

硅铝配比对镍基催化剂催化废塑料裂解产物的影响

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