نتایج جستجو برای: oil separation

تعداد نتایج: 259602  

Journal: :Journal of the Korean Chemical Society 2013

2012
Shuifu Li Shouzhi Hu Jian Cao Ming Wu Dongmei Zhang

Diamondoids in crude oil are useful for assessing the maturity of oil in high maturation. However, they are very difficult to separate and accurately quantify by conventional geochemical methods due to their low abundance in oil. In this paper, we use comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC×GC-TOFMS) to study the compounds in condensates from t...

Journal: :Bioresource technology 2012
Su-Hwa Jung Seon-Jin Kim Joo-Sik Kim

Fractions of waste square timber and waste ordinary plywood were pyrolyzed in a pyrolysis plant equipped with a fluidized bed reactor and a dual char separation system. The maximum bio-oil yield of about 65 wt.% was obtained at reaction temperatures of 450-500 °C for both feed materials. For quantitative analysis of bio-oil, the relative response factor (RRF) of each component was calculated us...

Journal: :iranian journal of pharmaceutical research 0
bahman nickavar department of pharmacognosy school of pharmacy shahid beheshti university of medical sciences, tehran, iran. abrisham adeli department of pharmacognosy school of pharmacy shahid beheshti university of medical sciences, tehran, iran. azar nickavar department of pharmacognosy, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran

the present work was designed to study the antioxidant activity and to identify the main active components of the essential oil of ajowan (trachyspermum copticum) fruit. gc and gc-ms analyses of the essential oil showed the presence of eight compounds. the main constituents of the oil were thymol (43.7%), p-cymene (26.8%), and γ-terpinene (24.9%). the antioxidant and free radical scavenging act...

2016
Sen Ye Qiang Cao Qingsong Wang Tianyuan Wang Qing Peng

It has been a long standing challenge to efficiently separate oil and water since prehistoric times, and now it has become even more desirable in oily wastewater purification and oil spill cleanup. Here we introduce a super oil-water separation filter with superhydrophilicity and underwater superoleophobicity, fabricated using femtosecond laser micro-hole drilling of a titanium foil. Such a sim...

2006
Syed Faisal Ahmed Bukhari Wuqiang Yang

In the oil industry, huge saving may be made if suitable multi-interface level measurement systems are employed for effectively monitoring crude oil separators and efficient control of their operation. A number of techniques, e.g. externally mounted displacers, differential pressure transmitters and capacitance rod devices, have been developed to measure the separation process with gas, oil, wa...

Journal: :The Journal of the Society of Chemical Industry, Japan 1959

Journal: :Brazilian Journal of Petroleum and Gas 2015

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