Three‐dimensionally cross‐linked styrene ‐ methyl methacrylate‐divinyl benzene terpolymer networks for organic solvents and crude oil absorption

2020 ◽  
Vol 138 (9) ◽  
pp. 49942
Author(s):  
Mohan Raj Krishnan ◽  
Yazeed Fahad Aldawsari ◽  
Edreese H. Alsharaeh
Keyword(s):  
Methyl Methacrylate ◽  
Crude Oil ◽  
Organic Solvents ◽  
Oil Absorption ◽  
Divinyl Benzene

scholarly journals Appling Recyclable Waste Tire for Crude Oil Absorption

2018 ◽  
Vol 08 (01) ◽  
Author(s):  
Zahra Zamiraei ◽  
Mohammadreza Golriz ◽  
Mehran Parsa
Keyword(s):  
Crude Oil ◽  
Oil Absorption ◽  
Waste Tire

Photo-Crosslinking of Copolymeric Methacrylates Bearing Stilbene Chromophores

2012 ◽  
Vol 67 (11) ◽  
pp. 1132-1136
Author(s):  
Angelika Jahnke ◽  
Herbert Meier
Keyword(s):  
Light Scattering ◽  
Methyl Methacrylate ◽  
Radical Polymerization ◽  
Organic Solvents ◽  
Imaging Techniques ◽  
Ester Group ◽  
Cast Films ◽  
The Cross ◽  
Group Yield

Radical polymerization of methyl methacrylate (2) as major component and the methacrylates 1a or 1b, which contain an (E)-stilbene unit fixed by a tether to the ester group, yield easily soluble copolymers 3a, b. Whereas the dominant photoreactions in solution are (E)⇄Z) isomerizations and intra-chain [2π +2π] cycloadditions, cast films of 3a, b give an inter-chain photo-crosslinking on irradiation. Compared to homopolymers, the copolymers are not only better soluble and more easily processible, their films show less undesired light scattering. The cross-linked material is completely insoluble in organic solvents. Thus, it represents the basis for negative photoresists and the corresponding imaging techniques.

Quantitative Determination of Microbial Oil Degradation and Of Oil Absorption by a New Oil-Binding System in a Baltic Sea Mesocosm Experiment

2014 ◽  
Vol 2014 (1) ◽  
pp. 1059-1072 ◽  
Author(s):  
Janne Haehnel ◽  
Jenny Jeschek ◽  
Detlef E. Schulz-Bull
Keyword(s):  
Crude Oil ◽  
Baltic Sea ◽  
Microbial Communities ◽  
Medium Size ◽  
Oil Absorption ◽  
Binding System ◽  
Degrading Bacteria ◽  
Joint Research Project ◽  
Meso Scale ◽  
Oil Binding

ABSTRACT In this study, a novel oil-binding system for marine application was developed within the joint research project “BIOBIND” (“Airborne clean-up of oil pollution at sea with biogenic oil binders”). The system's components include oil-absorbing solids, made of biogenic and biodegradable wood-fiber, that can be dropped from an aircraft and subsequently recovered either at sea or along the coast. The binder-based system was tested together with oil-degrading microbial communities previously isolated from coastal water samples of the Baltic Sea. In a first attempt at a meso-scale setup, mesocosms containing different combinations of seawater, oil binders, crude oil, and oil-degrading bacteria were established. These experiments sought answers to the following questions: (1) How does the microbial community isolated from the Western Baltic Sea react to oil entries? (2) What happens to the crude oil? (3) How efficient is the oil absorption capacity of the developed binders? Microbial activity was monitored by measuring the oxygen, phosphate, and ammonia contents of the mesocosms. Weight loss of the whole crude was estimated using a gravimetric method. In one of the mesocosms, the selected inoculum degraded around 25 % of the added crude oil. In another, in which the absorption efficiency of the oil binders was examined, more than 98 % of the crude oil was absorbed. Further molecular details on the fate of the oil were obtained using gas chromatography with a flame ionization detector and mass spectrometry to quantify alkanes and polycyclic aromatic hydrocarbons, respectively; both were efficiently degraded by the selected inoculum. The oil absorption and oil-degrading capabilities of a system consisting of oil binders and oil-degrading microbial communities at the meso-scale was shown. These promising preliminary tests recommend its further development for use in responding to small- and medium-size oil spills in near-coastal shallow-water areas.

scholarly journals The Origin of Chlororganic Compounds in Crude Oil and Oil Fractions

2020 ◽  
Vol 131 (6) ◽  
pp. 3-10
Author(s):  
V. K. Miller ◽  
◽  
D. V. Marochkin ◽  
Yu. G. Noskov ◽  
G. A. Korneeva ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Hydrochloric Acid ◽  
Crude Oil ◽  
High Molecular Weight ◽  
Organic Solvents ◽  
Oil Production ◽  
Organochlorine Compounds ◽  
Oil Fractions ◽  
Acid Acid

In this review, published information on the nature and molecular compositions of organochlorine compounds (OCCs), which are found in crude oil and in its refined products, is systematized. The native and added OCCs are reviewed. The formers are concentrated predominantly in high molecular weight resinous-asphaltene substances of crude oil, the latter’s, referred to as light organochlorine compounds, are present in the gasoline fractions. The following chemicals that are used for oil production are regarded as possible sources of OCCs: inhibited hydrochloric acid, acid compounds; organic solvents of asphalt-resin-paraffin deposits, organic solvents served for oil production stimulation, and possible products of a mutual solvent chlorination with hydrochloric acid.

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