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51 Newest Publications about the topic vacuum distillation

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Synthesis of Biolubricant Trimethylolpropane Trioleate and Its Lubricant Base Oil Properties

30-Jun-2017 | Sen Qiao; Yonggang Shi; Xiaojuan Wang; Zhenxing Lin; Yunxuan Jiang, Energy & Fuels, 2017

Trimethylolpropane trioleate (TMPTO) could significantly reduce environmental pollution compared to mineral oils. In this study, oleic acid (OA) and trimethylolpropane (TMP) were used to synthesize TMPTO, and the synthesis process was optimized by single-factor experiments to obtain the highest ...

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Performance of induction module‐cavity ring‐down spectroscopy (IM‐CRDS) for measuring δ18O and δ2H values of soil, stem, and leaf waters

24-Dec-2016 | J. E. Johnson, L. Hamann, D. L. Dettman, D. Kim‐Hak, S. W. Leavitt, R. K. Monson, S. A. Papuga, Rapid Communications in Mass Spectrometry, 2016

Abstract Rationale Induction module cavity ring‐down spectroscopy (IM‐CRDS) has been proposed as a rapid and cost‐effective alternative to cryogenic vacuum distillation (CVD) and isotope ratio mass spectrometry (IRMS) for the mesurement of δ18O and δ2H values in matrix‐bound waters. In the ...

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Scheme for Hydrotreatment of Fluid Catalytic Cracking Decant Oil with Reduced Hydrogen Consumption and High Needle Coke Yield upon Carbonization

29-Sep-2016 | Joseph P. Abrahamson; Ronald T. Wincek; Semih Eser, Energy & Fuels, 2016

Two decant oils with different sulfur contents and their vacuum distillation fractions were hydrotreated in a fixed-bed flow reactor to produce a feed with sufficiently low sulfur content for needle coke production. Products from hydrotreatment were subsequently carbonized in a tubing bomb ...

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Application of the Solvent Dimethyl Sulfoxide/Tetrabutyl‐Ammonium Acetate as Reaction Medium for Mix‐Acylation of Pulp

05-Sep-2016 | Yongqi Yu, Zeming Jiang, Jiaojiao Miao, Yang Liu, Liping Zhang, Advances in Polymer Technology, 2016

Abstract An important cellulose mixed ester, cellulose acetate butyrate (CAB), was successfully prepared in tetrabutylammonium acetate (TBAA)/dimethyl sulfoxide (DMSO) system. The structure of the cellulose derivative was characterized with a Fourier Transform IR spectrometer and analyzed ...

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Operation of a small scale demonstration plant for Biodiesel synthesis under supercritical conditions

15-Aug-2016 | Jochen Schürer, Daniel Bersch, Sebastian Schlicker, Richard Thiele, Ole Wiborg Athanassios Ziogas, Ralf Zapf, Gunthe ..., Chemical Engineering & Technology, 2016

Abstract A small scale demonstration plant was designed, set up and operated for the heterogeneously catalysed synthesis of biodiesel under supercritical conditions. An ASPEN plus model was applied to minimise the energy demand for the product purification stages, which were identified as the ...

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Effects of Catalyst Properties on Hydrodesulfurization Activity for Sulfur Removal from Fluid Catalytic Cracking Decant Oils

11-Aug-2016 | Joseph P. Abrahamson; Ronald T. Wincek; Semih Eser, Energy & Fuels, 2016

Removing sulfur from larger ring systems in fluid catalytic cracking decant oils used as needle coke feedstock is the most effective way of reducing the needle coke sulfur content. The large sulfur compounds found in decant oil are incorporated into coke in larger proportions than smaller sulfur ...

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Synthesis of large‐scale heat exchanger networks using a T‐Q diagram method

15-Jun-2016 | Lixia Kang, Yongzhong Liu, Nan Jiang, The Canadian Journal of Chemical Engineering, 2016

Abstract For design of a heat exchanger network (HEN) by pinch technology, it is not uncommon to determine stream splitting and stream matching by empirical experience, in which numerous attempts are usually required to reach the final configuration of the HEN. In this work, a novel T‐Q ...

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Molecules, Vol. 21, Pages 768: Preparative Separation and Purification of the Total Flavonoids in Scorzonera austriaca with Macroporous Resins

13-Jun-2016 | Xie, Yang ; Guo, Qiu-Shi ; Wang, Guang-Shu, Molecules, 2016

The use of macroporous resins for the separation and purification of total flavonoids to obtain high-purity total flavonoids from Scorzonera austriaca was studied. The optimal conditions for separation and purification of total flavonoids in S. austriaca with macroporous resins were as follows: ...

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New Pathways for Asphaltenes Upgrading Using the Oxy-Cracking Process

03-Jun-2016 | Maryam Ashtari; Lante Carbognani Ortega; Francisco Lopez-Linares; Abdelatif Eldood; Pedro Pereira-Almao, Energy & Fuels, 2016

Solvent deasphalting of the bottom of vacuum distillation columns (vacuum residue, VR) is a process practiced worldwide. In Northern Alberta, a solvent deasphalting plant was designed to process up to 4000 tons/day of the asphaltenic pitch. Asphaltenes oxy-cracking in liquid phase could be a new ...

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Sample Enrichment for Bioanalytical Assessment of Disinfected Drinking Water: Concentrating the Polar, the Volatiles, and the Unknowns

01-Jun-2016 | Daniel Stalter; Leon I. Peters; Elissa O’Malley; Janet Yat-Man Tang; Marion Revalor; Maria José Farré; Kalinda Watso ..., Environmental Science & Technology, 2016

Enrichment methods used in sample preparation for the bioanalytical assessment of disinfected drinking water result in the loss of volatile and hydrophilic disinfection byproducts (DBPs) and hence likely tend to underestimate biological effects. We developed and evaluated methods that are ...

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