Open AccessPreparation of phase transfer functional catalysts and their application in viscosity reduction of heavy oils
Author(s) -
Feng Yaoyao,
Li Yiguang,
Li Qiuye,
Li Xiaohong,
Zhang Zhijun
Publication year - 2017
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2016.0583
Subject(s) - catalysis , nanomaterial based catalyst , viscosity , chemical engineering , nickel , phase (matter) , chemistry , metal , mass fraction , mass transfer , materials science , organic chemistry , chromatography , composite material , engineering
Four kinds of nanosilica‐supported metallic and metatitanic acid nanocatalysts were synthesised as potential phase transfer catalysts for enhancing heavy oil recovery via a liquid‐reduction method. The catalysts were carried by water and transferred into oil phase, and the catalytic performance of catalysts for the aquathermolysis reaction and viscosity reduction of the extra‐heavy oil recovered at Shengli Oilfield (Dongying, China) was investigated. At a mass fraction of 1%, an aquathermolysis reaction temperature of 150°C and an aquathermolysis time of 36 h, the as‐synthesised silica/zero valence iron and nickel (denoted as SiO 2 /Fe/Ni) catalyst was able to reduce the apparent viscosity of the two kinds of heavy oils by 79.3 and 77.6%, showing promising application in the industrial production of heavy crude oil.