The use of zeolite catalysts for the refining of products from methanol synthesis and Fisher-Tropsch synthesis was reviewed. The focus was on fuels refining processes and differences in the application to indirect liquefaction products was compared to petroleum, which is often a case of managing different molecules. Processes covered were skeletal isomerisation of n-butenes, hydroisomerisation ...

Light and middle atmospheric distillate petroleum substances are blended to produce fuels used in transportation and heating. These substances represent the majority by volume of crude oil refined products in the United States. The goal of this research was to develop biodegradability and aquatic toxicity data for four substances; heavy, straight-run naphtha (HSRN), hydro-desulfurized kerosene ...

It has been more than a century since dry cleaning had its origin in Paris, France. Since that time, the dry cleaning process, whereby garments are cleaned in a nonaqueous solvent, has witnessed many refinements. Gasoline and carbon tetrachloride have been replaced as dry cleaning fluids by perchloroethylene (perc, and also known as tetrachloroethylene), Stoddard solvent (a petroleum distillate...

This paper presents the experimental work conducted on Conventional Basin type Solar Still in order to investigate the effect of some design and operating parameters on the performance of the still. The vapour leakage from the still may significantly vary the performance, lot of literature can be found on this topic. The misalignment or crookedness of distillate channel may be seemingly ignorab...

Dried, treated wood was sealed with Thompson's WaterSeal "Clear Multi-Surface Waterproofer" and exposed to outdoor, summer conditions. Sections of the sealed wood were then periodically tested and analyzed in accordance with ASTM methods. The WaterSeal contained a medium petroleum distillate (MPD) as a solvent for a wax. The treated lumber contained a background of aldehydes that could mimic a ...

Among the 7 types of natural solvent mixtures listed as third class solvents in the Ordinance on Prevention of Organic Solvent Poisoning, 5 types (134 samples) of petroleum distillate solvents (PDS) were collected from various parts of Japan in 1986 and 1987, and analyzed for n-hexane, benzene and 4 other aromatics by capillary gaschromatography. In addition, 3 samples of turpentine oil, 1 samp...

Repellent properties of three plant extracts--essential oil (steam distillate) of Zanthoxylum limonella (fruits), Citrus aurantifolia (leaf) and petroleum ether extract of Z. limonella (fruits) were evaluated as repellent against Aedes (S.) albopictus mosquitoes in mustard (Dhara) and coconut (Parachute) oil base under laboratory conditions. Three concentrations--10, 20 and 30% of the repellent...

The article presents the results of research on production polymer-bitumen binder (PBB) based mixtures non-oxidized and oxidized petroleum products, namely high-viscosity tar, darkened vacuum distillate, bitumen 70/100, obtained at technological installations Limited Liability Partnership (LLP) “JV Caspi Bitum’’ styrene-butadiene-styrene (SBS) block copolymer brand L 30-01A modifier in presence...

AIM To select carbazole-degrading bacteria able to survive and metabolize carbazole in biphasic organic-water media and to study the factors affecting carbazole degradation in such conditions. METHODS AND RESULTS In this research a new carbazole-degrading strain was isolated from hot springs in Mexico. This bacterium was preliminary identified as Burkholderia sp. IMP5GC and was able to grow u...

Increasingly frequent petroleum contamination in water bodies continues to threaten our ecosystem, which lacks efficient and safe remediation tactics both on macro and nanoscales. Current nanomaterial and dispersant remediation methods neglect to investigate their adverse environmental and biological impact, which can lead to a synergistic chemical imbalance. In response to this rising threat, ...