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Energy Sources, Part A: Recovery, Utilization, and Environmental Effects Volume 32, 2010 - Issue 14
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Original Articles

Light Stability Improvement of Hydrotreated Naphthenic Rubber Oil

S. Han Department of Chemical Engineering, Shanghai Institute of Technology, Shanghai, P.R. China; School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, P.R. China
,
X. Cheng Petrochina Lubricating Oil R&D Institute, Lanzhou, P.R. China
,
S. Ma Petrochina Lubricating Oil R&D Institute, Kelemayi, P.R. China
&
T. Ren School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, P.R. China
Pages 1326-1333 | Received 19 Oct 2008, Accepted 29 Nov 2008, Published online: 17 May 2010
 
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Abstract

Hydrotreated naphthenic rubber oil suffers the shortcoming of poor stability against sunlight degradation. In this article, two process routes were employed to improve the disadvantage. One was the adjustment of technical parameters and routes; another was the addition of some effective light stabilizers. The result of the investigation indicates that the product, which was produced through the three-stage process (hydrotreatment-clay refinement-0.01% UV2 light stabilizer addition), could acquire the best light stability. The Saybolt color could likewise attain the >+20 level after exposure of the product to sunlight for seven days.

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