Liquid-Phase Esterification of Oleic Acid and Isobutyl Alcohol

1958 ◽  
Vol 50 (6) ◽  
pp. 939-942 ◽  
Author(s):  
Wilfred Ling ◽  
Christie Geankoplis
1961 ◽  
Vol 41 (1) ◽  
pp. 204-210 ◽  
Author(s):  
B. M. Craig

The fatty acid compositions of the oil from 6 varieties of rapeseed grown at 22 stations were determined by gas liquid phase chromatography. Significant differences were found between stations for all fatty acids and between varieties for palmitic, stearic, oleic, linoleic, eicosenoic and erucic acids. The variations for palmitic, stearic, and eicosenoic acids were small, whereas major variations occurred in oleic, erucic and linoleic acids. A correlation coefficient of −0.975 was found between oleic and erucic acids and a prediction equation was determined to calculate oleic acid from the erucic acid content.


2013 ◽  
Vol 395-396 ◽  
pp. 149-153 ◽  
Author(s):  
Kai Ji He ◽  
Jia Liu ◽  
Hao Lv ◽  
Shu Min Zheng ◽  
Kai Ming Wang

The nanoMgO and active nanoSiO2 were prepared by the special liquid-phase precipitation method. Subsequently, Chrysotile nanotube was prepared of by hydrothermal method using the nanoMgO and active nanoSiO2 as precursors at 220°C under 23atm in basic solution. The surface topographies and composition of the Chrysotile nanotube were characterized by XRD and TEM. Then, the dispersive property of particles modified by oleic acid was analyzed by IR. The tribological properties) were explored by adding the modified nanomagnesium silicate hydroxide to 2# lithic-grease after dispersing uniformly. Compared with the blank sample, it can significantly reduce the friction traces of the metal surface, improve extreme pressure performance. The friction coefficient is still stable when the temperature is raised during the friction. Nanotube power can be adhered and spread on the worn metal surface. Thus self-repairing coating forms on the worn surface.


2014 ◽  
Vol 53 (11) ◽  
pp. 4192-4198 ◽  
Author(s):  
Simge Karakuş ◽  
Emine Sert ◽  
Aslı Deniz Buluklu ◽  
Ferhan Sami Atalay

2018 ◽  
Vol 11 (3) ◽  
pp. 159
Author(s):  
Bambang Heru Susanto ◽  
M. Nasikin ◽  
S Sukirno ◽  
Gita Agitia Fransisca

Pd/C-catalized deoxygenation of Oleic Acid as a vegetable oil model for renewable diesel fuel synthesis.Second-generation biofuels called renewable diesel that are drop-in replacements for traditional petroleum derived transportation fuels (diesel, gasoline, and jet fuel) can be produced from triglycerides by thermocatalytic processes. One of the alternatives of renewable solar synthesis is through deoxygenation reaction using heterogeneous catalysts. In this experiment, oleic acid was used as model compounds to study the catalytic deoxygenation process of triglycerides to hydrocarbons like diesel (renewable diesel). The 1% Pd/C catalyst used in the study was prepared by microwave polyol process.  At 400 oC and under H2 pressure of 9 bar and 15 bar, The Pd/C catalysts tended to be more selective toward decarboxylation pathway. Under H2, the main liquid-phase product was alkanes and aromatic, while the main gaseous products were CO and CO2. The conversion was around of 75% with selectivity of renewable diesel was 50.14%. Measured physical properties of renewable diesel (density and viscosity) is comparable to those specified for commercial diesel.Keywords: deoxygenation, oleic acid, Pd/C catalys, microwave polyol process, renewable dieselAbstrakGenerasi ke-2 dari bahan bakar nabati yang disebut dengan solar terbarukan dapat menggantikan bahan bakar turunan dari minyak bumi untuk transportasi (solar, bensin dan bahan bakar pesawat) dengan cara diproduksi dari trigliserida melalui reaksi termokatalitik. Salah satu rute sintesis solar terbarukan adalah melalui proses reaksi deoksigenasi berkatalis heterogen. Di dalam penelitian ini, asam oleat digunakan sebagai senyawa model untuk mempelajari deoksigenasi katalitik dari trigliserida menjadi hidrokarbon seperti solar (solar terbarukan). Katalis Pd/C yang digunakan dalam studi ini dipersiapkan dengan metode microwave polyol process. Pada kondisi operasi suhu 400 oC dan tekanan H2 sebesar 9 bar dan 15 bar, katalis 1 %-berat Pd/C lebih cenderung mengarahkan reaksi ke jalur dekarbokasilasi. Pada kondisi tekanan H2 didapatkan produk cair yang utama adalah alkana dan aromatik sedangkan produk gasnya adalah CO dan CO2. Konversi reaksi yang dihasilkan adalah sekitar 75% dengan  selektifitas produk solar terbarukan adalah 50,14%. Sifat fisik (densitas dan viskositas) solar terbarukan mendekati sifat fisik solar komersial.Kata kunci: deoksigenasi, asam oleat, katalis Pd/C, microwave polyol process, solar terbarukan


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