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Siluria开发甲烷直接转化制乙烯新型催化剂

354 化学反应工程与工艺 2010年8月 
5 Wessling R A.Polyvinylidene Chloride

New York:Gordon&Breach,1977.44 

6 Zhou S X,weng Z X,Huang Z M,at a1

Phase Partiti。n。f Acryl。nitrile(AN)in VinyI.dene Chl。ride(VDC)/Water System and Its 

Effect on VDC-AN Copolymer Composition

Chinese J Chem Eng,1999,7(4):326 ̄331 

Particle Characteristics of Vinylidene Chloride—Acrylonitrile 
Copolymers Prepared by Suspension Polymerization 

(1 
Xie Jianwu ’ Bao Yongzhon 
Department of Chemical and Biologi Engineering,Zheiiang Uni cal 
Ver 

Zhang Jingtian Huang Zhiming 
Engineering,State Key Laboratory of Chemical 
sity,Hangzhou 310027,China; 
2・Department of Chemical Engineering,Hangzhong Vocational Technology College

Hangzh0u 310018,China) 

Abstract: Vinylidene chloride(VDC)homopolymer and vinylidene chloride-acrylonitrile(VDC- 
AN) copolymers were prepared by suspension polymerization process
, and the influence of AN 

content on the particle characteristics and crystallinity of VDC polymers was investigated

It was 

found that the particles of VDC resins were varied from porous tO compact morpho1ogy with the 

increase of mass fraction of AN in polymers

When the mass fraction of AN in copolymer was equa1 to 

or less than 8.8 ,the internal pore size of VDC-AN copolymer was 0

1—2.0“m;when the mass 

fraction of AN was equal to or more than 12

3 ,the primary particles were coagulated together。the 

pore space among the particles was almost disappeared and the VDC~AN copolymer was hardly 
crystallized.The increase of AN monomer in VDC-AN copolymers led tO the decrease of crystallinitv 
of VDC-AN polymers and the increase of the swelling ability of AN monomer in copolymers

which 

was the main reason why the structure of VDC and particles became compact
. 

Key words: vinylidene chloride;acrylonitrile;suspension polymerization;particle characteristics 

¥ 8耳 寻 
Siluria开发甲烷直接转化制乙烯新型催化剂 

美国Siluria技术公司开发出一种纳米级催化剂,它可以在低于常规蒸汽裂解所需的 
操作温度下将甲烷直接转化成乙烯。 
Siluria公司估计,这一技术有望在原料及运行成本方面每年可以为该行业节约数百 
亿美元,其目标是实现100万t/a乙烯装置工业化应用。Siluria称,“石油供应日益昂 
贵,天然气资源利用持续增强,我们的目标是将天然气的主要成分甲烷直接转化成化学 
工业的基本组成乙烯”。目前,该公司正优化这种催化剂,力争使其适应工业化应用的 
要求。 
Siluria还表示,这种催化剂也可用于对蒸汽裂解装置进行翻新改造,还可用于其它 
反应过程,例如丙烷转化制丙烯,乙烷转化制醋酸等。 

李雅丽摘自美CW,2010—7—22

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