Catalytic cracking of large molecules over hierarchical zeolites

2006 ◽  
pp. 1769 ◽  
Author(s):  
Qian Lei ◽  
Tianbo Zhao ◽  
Fengyan Li ◽  
Lingling Zhang ◽  
Yue Wang
Keyword(s):  
Catalytic Cracking ◽  
Hierarchical Zeolites ◽  
Large Molecules

scholarly journals Conversion of Isoprenoid Oil by Catalytic Cracking and Hydrocracking over Nanoporous Hybrid Catalysts

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Toshiyuki Kimura ◽  
Chen Liu ◽  
Xiaohong Li ◽  
Takaaki Maekawa ◽  
Sachio Asaoka
Keyword(s):  
Octane Number ◽  
Catalytic Cracking ◽  
Reaction Scheme ◽  
Major Product ◽  
Liquefied Petroleum Gas ◽  
Hybrid Catalyst ◽  
Large Molecules ◽  
Hybrid Catalysts ◽  
Microalgae Oil ◽  
High Octane

In order to produce petroleum alternatives from biomass, a significant amount of research has been focused on oils from microalgae due to their origin, which would not affect food availability. Nanoporous hybrid catalysts composed ofnsAl2O3and zeolites have been proven to be very useful compared to traditional catalysts in hydrotreating (HT), hydrocracking (HC), and catalytic cracking (CC) of large molecules. To evaluate the reaction scheme and products from model isoprenoid compounds of microalgae oil, nanoporous hybrid catalyst technologies (CC:nsAl2O3/H-USY andnsAl2O3/H-GaAlMFI; HC: [Ni-Mo/γ-Al2O3]/nsAl2O3/H-beta) were studied. The major product from CC onnsAl2O3/H-USY was highly aromatic gasoline, while the product from HC was half-isoparaffinic/olefinic kerosene. Although more than 50 wt% of the products from HT/CC on the USY catalyst was liquefied petroleum gas due to overcracking, the product from HT/CC on the MFI catalyst was high-octane-number gasoline. Delightfully, the product from HT/HC was kerosene and its average number was 11, with more than 80 wt% being isoparaffinic. As a result, it was demonstrated that hydrotreating may convert isoprenoid oil from microalgae over nanoporous hybrid catalysts into a variety of products.

scholarly journals Fabrication of intracrystalline mesopores within zeolite Y with greatly decreased templates

RSC Advances ◽  
2017 ◽  
Vol 7 (16) ◽  
pp. 9605-9609 ◽  
Author(s):  
Zhen Wang ◽  
Honghai Liu ◽  
Qingting Meng ◽  
Junsu Jin ◽  
Chunyan Xu ◽  
...  
Keyword(s):  
Catalytic Cracking ◽  
Zeolite Y ◽  
Large Molecules

Zeolite Y with intracrystalline mesopores has been emerging as one of the most potential materials in the catalytic cracking of large molecules.

Hierarchical zeolites obtained by alkaline treatment for enhanced n-pentane catalytic cracking

Fuel ◽  
2021 ◽  
pp. 122669
Author(s):  
Zijian Wang ◽  
Rongxin Zhang ◽  
Jieguang Wang ◽  
Zhongwei Yu ◽  
Yanjuan Xiang ◽  
...  
Keyword(s):  
Catalytic Cracking ◽  
Alkaline Treatment ◽  
Hierarchical Zeolites

Exploring the impact of synthetic strategies on catalytic cracking in hierarchical beta zeolites via hydrothermal desilication and organosilane-templated synthesis

2020 ◽  
Vol 10 (14) ◽  
pp. 4602-4611 ◽  
Author(s):  
Ke Zhang ◽  
Sergio Fernandez ◽  
Elisha S. Converse ◽  
Sarah Kobaslija
Keyword(s):  
Catalytic Cracking ◽  
Catalytic Properties ◽  
Hierarchical Zeolites ◽  
Templated Synthesis ◽  
Beta Zeolites ◽  
The Creation ◽  
The Impact ◽  
Hierarchical Beta

Hierarchical zeolites can be synthesized by different strategies, resulting in the creation of mesoporosity with different configurations (inter-crystalline or intra-crystalline) in addition to unique porous and catalytic properties.

The Synthesis of Novel Hierarchical Zeolites and Their Performances in Cracking Large Molecules

2010 ◽  
Vol 136 (3-4) ◽  
pp. 266-270 ◽  
Author(s):  
Tianbo Zhao ◽  
Xin Xu ◽  
Yangchuan Tong ◽  
Qian Lei ◽  
Fengyan Li ◽  
...  
Keyword(s):  
Hierarchical Zeolites ◽  
Large Molecules

High activity in catalytic cracking of large molecules over a novel micro-micro/mesoporous silicoaluminophosphate

2010 ◽  
Vol 18 (1) ◽  
pp. 69-81 ◽  
Author(s):  
Jian Qi ◽  
Tianbo Zhao ◽  
Xin Xu ◽  
Fengyan Li ◽  
Guida Sun
Keyword(s):  
High Activity ◽  
Catalytic Cracking ◽  
Large Molecules

Realizing the Commercial Potential of Hierarchical Zeolites: New Opportunities in Catalytic Cracking

ChemCatChem ◽  
2013 ◽  
Vol 6 (1) ◽  
pp. 46-66 ◽  
Author(s):  
Kunhao Li ◽  
Julia Valla ◽  
Javier Garcia-Martinez
Keyword(s):  
Catalytic Cracking ◽  
Hierarchical Zeolites ◽  
Commercial Potential
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