Exploiting the greenhouse gas CO2 as raw material could be more advantageous than its long-term storage. For instance, CO2 can be used on large scale for the production of COrich syngas with a H2/CO ratio of unity. Such a syngas can be used for the synthesis of commodity chemicals like aldehydes and ketones obtained through carbonylation of alkenes in hydroformulation and can be produced by CO2...

Abnormal growth of population and development enormously increases energy demand. In present scenario utilization of fossils fuels to meet this demand is not enough and also leads to pollution, global warming, climate change as well as natural disaster. Therefore, hydrogen as energy carrier is a major option on these prospects as it is non-polluting and renewable. The renewable hydrogen energy ...

A coupled reactor/furnace simulation has been conducted for a 100 kt/a SL-II naphtha cracking furnace containing both long-flame and radiation burners. The computational fluid dynamics approach was used to simulate the flow, combustion and radiative heat transfer in the furnace. The software packages COILSIM1D and SimCO were used to account for the cracking process in the reactor coils. The sim...

A new method for feedstock reconstruction of industrially important hydrocarbon fractions is developed using as input the analytically determined ommercial indices such as the average molecular weight, the specific density, theH/C-ratio, the paraffin, isoparaffin, olefins, naphthenes, aromatics PIONA) weight fractions and a set of ASTM boiling points. The method is based on Shannon’s entropy cr...

Gasoline blending stocks (naphthas) are comprised of normal, iso- and cycloparaffins and aromatic hydrocarbons with carbon numbers ranging from C4 to C12. Heavy straight run naphtha (HSRN, CAS number 64741-41-9) was selected for toxicity screening because substances of this type contain relatively high levels (28%) of cycloparaffins by comparison to other naphtha streams and the data complement...

Low-temperature oxidation (LTO) of four Arabian crudes as well as blends of naphtha with a super-light crude was investigated employing differential thermal analysis. The mass fraction of un-saturates in the reactants varied between 0.2 and 0.9. All reactants showed LTO peaks between 230 and 264 oC; heat flow at the peak, however, varied widely. The data revealed a clear increase in LTO-generat...

Serial extracts of the seeds of M.fragrans were investigated for their anti-diarrhoeal potential in three experimental models. Though all the three extracts exhibited significant activity, the petroleum ether and ethanol extracts were found to be more effective above 200 mg | kg dose levels.

Abstract The amount of silicon in naphtha must be controlled because it results silica deposits vehicle components, such as spark plugs, catalytic converters, and oxygen sensors, which can lead to fuel economy degradation, increased emissions, damage converters. Naphtha has low specific gravity high volatility; plasma does not form during analysis using inductively coupled plasma-optical emissi...

Due to the enormous use of oil worldwide, accidental spills occur relatively often, threatening sea ecosystem. A remediation strategy, usually, includes materials macroporous structure, flexibility, and low cost. Furthermore, they need have oleophilic hydrophobic characteristics. All these demands fulfill siloxane matrix foams. The addition a natural zeolite, clinoptilolite, as filler, can impr...