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Transient Heat Transfer Problems for Buried Hot Waxy Crude Pipelines

Cui Xiuguo,Zhang Jinjun

Strategic Study of CAE 2003, Volume 5, Issue 7,   Pages 77-83

Abstract:

Most crude oils produced in China are waxy crude with poor flowability at ambient temperature.The state-of-the-art and recent advances in transient heat transfer research for buried hot waxy crudeThe complex heat transfer with phase transformation and moving boundary for shut-down waxy crude pipelinesProblems needed to be further studied in transient heat transfer for buried hot waxy crude pipelines

Keywords： paraffin-base crude     pipeline transportation     transient heat transfer    

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Technologies for Pipelining High-Pour-Point and Viscous Crudes and Their Development

Zhang Jinjun

Strategic Study of CAE 2002, Volume 4, Issue 6,   Pages 71-76

Abstract:

More than 80% of crude produced in China are those crudes with poor flowability, either waxy crudesFlow characteristics of these two kinds of crude and the mechanism for their poor flowability are brieflyup-to-date research and application of technologies for pour point depression and drag reduction in crudeoil, which accounts for about one third of total crude oil production in China.application, and exploitation of offshore heavy crude oil fields in the Bohai Sea of China urgently

Keywords： pipelining     paraffin-base crude     heavy crude     pour point depression     drag reduction     chemical additives    

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Experimental study and assessment of thermal energy storage mortar with paraffin/recycled brick powder

Luchen HAO; Jianzhuang XIAO; Wanzhi CAO; Jingting SUN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 10,   Pages 1301-1314 doi: 10.1007/s11709-022-0883-4

Abstract: Thermal energy storage recycled powder mortar (TESRM) was developed in this study by incorporating paraffin/recycled brick powder (paraffin/BP) composite phase change materials (PCM).Fourier transform infrared and thermogravimetric analysis results showed that paraffin/BP composite PCMParaffin/BP composite PCM with replacement ratio of 0%, 10%, 20%, and 30% by weight of cement were studiedThe addition of paraffin/BP composite PCM had a positive impact on the mechanical properties of mortar

Keywords： recycled powder mortar     recycled brick powder     thermal energy storage     paraffin     phase change material    

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Exergy analysis of multi-stage crude distillation units

Xingang LI, Canwei LIN, Lei WANG, Hong LI

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 437-446 doi: 10.1007/s11705-013-1349-y

Abstract: This paper aims to investigate the multi-stage effect on crude distillation units (CDUs) in thermodynamics

Keywords： exergy     exergy loss     crude oil distillation     multi-stage     energy saving    

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Impact of crude distillation unit model accuracy on refinery production planning

Gang FU, Pedro A. Castillo CASTILLO, Vladimir MAHALEC

Frontiers of Engineering Management 2018, Volume 5, Issue 2,   Pages 195-201 doi: 10.15302/J-FEM-2017052

Abstract: In this work, we examine the impact of crude distillation unit (CDU) model errors on the results of refinery-wide

Keywords： impact of model accuracy on production planning     swing cut+ bias CDU model     hybrid CDU model     refinery feedstock selection optimization     optimization of refinery operation    

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Microbial community and functional genes in the rhizosphere of alfalfa in crude oil-contaminated soil

Yi ZHONG, Jian WANG, Yizhi SONG, Yuting LIANG, Guanghe LI

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 797-805 doi: 10.1007/s11783-012-0405-z

Abstract: A rhizobox system constructed with crude oil-contaminated soil was vegetated with alfalfa ( L.) to evaluatefunctional structure, and to explore the potential mechanisms by which plants enhance the removal of crudeHowever, the removal rate of crude oil was positively correlated with the proportion of hydrocarbon-degrading

Keywords： crude oil-contaminated soil     phytoremediation     rhizosphere effects     rhizobox     functional genes    

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Antioxidant and antitumor effects and immunomodulatory activities of crude and purified polyphenol extract

Xiaohong Kou,Lihua Han,Xingyuan Li,Zhaohui Xue,Fengjuan Zhou

Frontiers of Chemical Science and Engineering 2016, Volume 10, Issue 1,   Pages 108-119 doi: 10.1007/s11705-016-1553-7

Abstract: The antioxidant and antitumor effects as well as the immunomodulatory activities of crude and purifiedblueberry purified polyphenol extract (BBPP) exhibited higher antioxidant activities than blueberry crude

Keywords： crude polyphenol extract     purified polyphenol extract     blueberry     antioxidant     antitumor     immunity    

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Analyzing the energy intensity and greenhouse gas emission of Canadian oil sands crude upgrading through

Anton ALVAREZ-MAJMUTOV,Jinwen CHEN

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 2,   Pages 212-218 doi: 10.1007/s11705-014-1424-z

Abstract: evaluation of the energy intensity and related greenhouse gas/CO emissions of integrated oil sands crudeTwo major oil sands crude upgrading schemes currently used in Canadian oil sands operations were investigatedwas concluded that while hydroconversion-based scheme yields considerably higher amount of synthetic crude

Keywords： Oil sands crude upgrading     hydroconversion     process modeling     greenhouse gas emissions    

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Impacts of different diameter combinations on the temperature of a crude oil pipeline when colocating

Bo YU, Yue SHI, Xin LIU, Jinjun ZHANG, Jinjia WEI,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 192-197 doi: 10.1007/s11708-009-0074-1

Abstract: In order to show the effects of different diameter combinations on crude oil temperature when a crudecalculations, the minimum mean temperature difference and the maximum temperature difference of the crudeIn real pipeline constructions, the effects of other diameter combinations on crude oil temperature can

Keywords： technology of laying two pipelines in one trench     diameter combinations     crude oil temperature     pipeline    

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Study of base friction simulation tests based on a complicated engineered bridge slope

Liu HE, Guang WU, Hua WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 393-397 doi: 10.1007/s11709-012-0174-6

Abstract: In this paper, a physical base friction test model of a slope is established.the slope in both its natural state and during excavation loading is qualitatively analyzed through baseThe base friction test results are then subjected to comparison and analysis using finite element numerical

Keywords： base friction test     slope stability evaluation     bridge slope    

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Separation of epigallocatechin-3-gallate from crude tea polyphenols by using Cellulose diacetate graft

Hong ZHU, Peiyong QIN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 330-338 doi: 10.1007/s11705-010-1104-6

Abstract: inversion technique for the separation of (-)-epigallocatechin-3-gallate (EGCG) from other polyphenols in crude

Keywords： (-)-epigallocatechin-3-gallate (EGCG)     tea polyphenols     CDA-β-CD    

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Optimization of the main liming process for inulin crude extract from Jerusalem artichoke tubers

Huandong LI, Hongji ZHU, Jianjun QIAO, Junhu DU, Hua ZHANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3,   Pages 348-355 doi: 10.1007/s11705-012-1295-0

Abstract: The inulin crude extract was then clarified by a carbonate-precipitation method, during which three variables

Keywords： inulin     homogenate extraction     Jerusalem artichoke     main liming process    

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Base editors: development and applications in biomedicine

Frontiers of Medicine 2023, Volume 17, Issue 3,   Pages 359-387 doi: 10.1007/s11684-023-1013-y

Abstract: Base editor (BE) is a gene-editing tool developed by combining the CRISPR/Cas system with an individualdeaminase, enabling precise single-base substitution in DNA or RNA without generating a DNA double-strandBase editors offer more precise and secure genome-editing effects than other conventional artificialSince the development of the two main base editors, cytosine base editors (CBEs) and adenine base editorsHere, we review the recent development of base editors, summarize their applications in the biomedical

Keywords： base editing     CBE     ABE     ADAR     DdCBE     disease model     therapeutic application    

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Multistage-batch bipolar membrane electrodialysis for base production from high-salinity wastewater

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 764-773 doi: 10.1007/s11705-021-2114-2

Abstract: However, the low concentration of base generated from a traditional BMED process may limit the viabilityreport an especially designed multistage-batch (two/three-stage-batch) BMED process to increase the baseconcentration by adjusting different volume ratios in the acid (Vacid), base (Vbase), and salt compartments (Vsalt).–1, which was higher than the most reported base production by BMED.

Keywords： bipolar membrane electrodialysis     multistage-batch     base production     high-salinity wastewater    

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Enzyme@bismuth-ellagic acid: a versatile platform for enzyme immobilization with enhanced acid-base stability

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 6,   Pages 784-794 doi: 10.1007/s11705-022-2278-4

Abstract: biocatalysts; however, it is limited by the conditions of metal–organic framework synthesis and its acid-baseHerein, a biocatalytic platform with improved acid-base stability was constructed via a one-pot methodAfter encapsulation, the stability, especially the acid-base stability, of amyloglucosidases@bismuth-ellagic

Keywords： bismuth-ellagic acid     in situ encapsulation     enzyme@MOF biocomposites    

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Title Author Date Type Operation

Transient Heat Transfer Problems for Buried Hot Waxy Crude Pipelines

Cui Xiuguo,Zhang Jinjun

Journal Article

Technologies for Pipelining High-Pour-Point and Viscous Crudes and Their Development

Zhang Jinjun

Journal Article

Experimental study and assessment of thermal energy storage mortar with paraffin/recycled brick powder

Luchen HAO; Jianzhuang XIAO; Wanzhi CAO; Jingting SUN

Journal Article

Exergy analysis of multi-stage crude distillation units

Xingang LI, Canwei LIN, Lei WANG, Hong LI

Journal Article

Impact of crude distillation unit model accuracy on refinery production planning

Gang FU, Pedro A. Castillo CASTILLO, Vladimir MAHALEC

Journal Article

Microbial community and functional genes in the rhizosphere of alfalfa in crude oil-contaminated soil

Yi ZHONG, Jian WANG, Yizhi SONG, Yuting LIANG, Guanghe LI

Journal Article

Antioxidant and antitumor effects and immunomodulatory activities of crude and purified polyphenol extract

Xiaohong Kou,Lihua Han,Xingyuan Li,Zhaohui Xue,Fengjuan Zhou

Journal Article

Analyzing the energy intensity and greenhouse gas emission of Canadian oil sands crude upgrading through

Anton ALVAREZ-MAJMUTOV,Jinwen CHEN

Journal Article

Impacts of different diameter combinations on the temperature of a crude oil pipeline when colocating

Bo YU, Yue SHI, Xin LIU, Jinjun ZHANG, Jinjia WEI,

Journal Article

Study of base friction simulation tests based on a complicated engineered bridge slope

Liu HE, Guang WU, Hua WANG

Journal Article

Separation of epigallocatechin-3-gallate from crude tea polyphenols by using Cellulose diacetate graft

Hong ZHU, Peiyong QIN

Journal Article

Optimization of the main liming process for inulin crude extract from Jerusalem artichoke tubers

Huandong LI, Hongji ZHU, Jianjun QIAO, Junhu DU, Hua ZHANG

Journal Article

Base editors: development and applications in biomedicine

Journal Article

Multistage-batch bipolar membrane electrodialysis for base production from high-salinity wastewater

Journal Article

Enzyme@bismuth-ellagic acid: a versatile platform for enzyme immobilization with enhanced acid-base stability

Journal Article