نتایج جستجو برای: wax precipitation

تعداد نتایج: 65550  

Journal: :journal of chemical and petroleum engineering 2013
mojtaba mokhtari majid mohadesi gholamreza moradi

wax precipitate is one of the most serious issues the oil industry is currently facing, since it can cause some troubles such as increasing of the pressure losses in pipe which subsequently increases the required power for pumpage. to remove this problem, prediction of wax disappearance temperature (wdt) seems necessary. in this study, the pressure influence on the wax disappearance temperature...

Heavy organics deposition is a common problem in oil industry, especially in oil production, transportation and processing. Wax or solid paraffin series are examples of heavy organics that deposit. Precipitation and crystallization of wax causes major difficulties in different processes. Based on multi-solid theory, a basic model is modified in this paper for wax precipitation in different oils...

2015
Yanjun Guo Na Guo Yuji He Jianhua Gao

Alpine meadow ecosystems are susceptible to climate changes. Still, climate impact on cuticular wax in alpine meadow plants is poorly understood. Assessing the variations of cuticular wax in alpine meadow plants across different latitudes might be useful for predicting how they may respond to climate change. We studied nine alpine meadows in a climate gradient in the east side of Qinghai-Tibeta...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Brett J Tipple Melissa A Berke Christine E Doman Susanna Khachaturyan James R Ehleringer

Leaf-wax n-alkanes (2)H/(1)H ratios are widely used as a proxy in climate reconstruction. Although the broad nature of the relationship between n-alkanes δ(2)H values and climate is appreciated, the quantitative details of the proxy remain elusive. To examine these details under natural environmental conditions, we studied a riparian broadleaf angiosperm species, Populus angustifolia, growing o...

Journal: :international journal of nano dimension 0
l. abedi nano chemical engineering department, shiraz university, shiraz, iran. s. sabbaghi nano chemical engineering department, shiraz university, shiraz, iran. m. aezami chemistry department, yasouj university, yasouj, iran. s. sh. ayatollahi chemical engineering department, shiraz university, shiraz, iran.

most reservoir fluids contain heavy paraffinic compounds that may precipitate as a solid or solid like material called wax if the fluid is cooled down. wax precipitation is a phenomenon of considerable importance in oil industry. an increase in aggregation results in enhanced oil viscosity. this however causes significant negative effects on production, transportation and processing of crude oi...

Journal: :Journal of Petroleum Exploration and Production Technology 2016

L. Abedi M. Aezami S. Sabbaghi, S. Sh. Ayatollahi

Most reservoir fluids contain heavy paraffinic compounds that may precipitate as a solid or solid like material called wax if the fluid is cooled down. Wax precipitation is a phenomenon of considerable importance in oil industry. An increase in aggregation results in enhanced oil viscosity. This however causes significant negative effects on production, transportation and processing of crude oi...

L. Abedi M. Aezami S. Sabbaghi, S. Sh. Ayatollahi

Most reservoir fluids contain heavy paraffinic compounds that may precipitate as a solid or solid like material called wax if the fluid is cooled down. Wax precipitation is a phenomenon of considerable importance in oil industry. An increase in aggregation results in enhanced oil viscosity. This however causes significant negative effects on production, transportation and processing of crude oi...

2015
Xi Yao Shuwang Wu Lie Chen Jie Ju Zhandong Gu Mingjie Liu Jianjun Wang Lei Jiang

Solid deposition, such as the formation of ice on outdoor facilities, the deposition of scale in water reservoirs, the sedimentation of fat, oil, and grease (FOG) in sewer systems, and the precipitation of wax in petroleum pipelines, cause a serious waste of resources and irreversible environmental pollution. Inspired by fish and pitcher plants, we present a self-replenishable organogel materia...

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