petroleum

Vaseline Oils as Absorbents of Liquid Hydrocarbons from Natural and Artificial (Pyrolysis) Gases

The study explores various methods for removing C5+ liquid hydrocarbons from both natural and synthetic (pyrolysis-derived) gases. It also addresses the main challenges and inefficiencies associated with the currently used technologies. In particular, the proposed approach shows promise for purifying pyrolysis gases, such as methane or hydrogen. The research focuses on the physical and chemical properties of commercial vaseline oils and their potential use as absorbents for C5+ hydrocarbons.

Adsorption of BTX and PAHs by Polymeric Resins Packed in a Fixed Bed: Semi-Industrial Evaluation

Polymeric resins were synthesized by suspension polymerization on a pilot scale and packed in an acrylic column for use in a semi-industrial elution system, to study their behavior as adsorbents of oily water. The performance in removing benzene, toluene and xylene (BTX) was greater than 95.9 %, and the efficiency in retaining polyaromatic hydrocarbons (PAH) remained near 96.3 %.  

Methods for Determination of Oil and Grease Contents in Wastewater from the Petroleum Industry

Infrared spectrometry and spectrofluorimetry methods were correlated in the measurement of oil concentration in produced water. Furthermore, we compared colorimetry and gravimetry techniques. Adsorption experiments were performed in synthetic oily wastewaters by polymer compounds based on poly(hydroxyethyl acrylamide  and polypropylene. The residual oil content was used in the techniques correlation.