The solubility of hydrogen in the Venezuela Orinoco, China Liaohe, and Fengcheng atmospheric residues under reaction conditions 400 °C, 4 MPa for 20 min was analyzed by determining composition structure changes products. Activation during upgrading process also determined discussed probe method. results show that lighter components produced can increase as proceeds, present at liquid level have...

In this work, the thermophysical properties of four mineral (paraffinic and naphthenic) synthetic (polyalphaolefin ester) base oils are measured. Knowledge these is vital importance for correct optimal formulation design lubricants, development equations state transport models that adequately represent their properties. Density, isothermal compressibility, thermal expansion coefficient, dynamic...

This paper represents a detailed techno-economic analysis of typical commercial-scale catalytic decarboxylation process naphthenic acids over HZSM-5 zeolite. Simulation the has been performed in ASPEN Plus®. The performance modeled unit was compared to experimental results data from similar plant. Two models were developed for proposed industrial plant based on continuous flow reactors; first i...

This paper (SPE 113936) was accepted for presentation at the SPE/DOE Symposium on Improved Oil Recovery, Tulsa, 20–23 April 2008, and revised for publication. Original manuscript received for review 20 February 2008. Revised manuscript received for review 23 March 2009. Paper peer approved 8 September 2009. Summary Design of an alkaline/surfactant/polymer (ASP) process requires knowledge of the...

Naphthenic acids (NAs) as toxic components in most petroleum sources are suspected to be one of the major pollutants in the aquatic environment following oil spills, and the polarity and persistence of NAs make it a potential indicator for oil contamination. However, the contamination and potential effects of pollutants in oil spill affected areas remain unknown. To investigate NAs in oil spill...

BACKGROUND Oil field produced water (OFPW) is widely produced in large volumes around the world. Transforming the organic matter in OFPW into bioenergy, such as biomethane, is one promising way to sustainability. However, OFPW is difficult to biologically degrade because it contains complex compounds such as naphthenic acids (NAs), or polycyclic aromatic hydrocarbons (PAHs). Although active mic...