thermal cracking of a heavy liquid hydrocarbon was performed in a laboratory scale tubular reactor. central composite design (ccd), was used as an experimental design method. the design variables were coil outlet temperature (cot), feed flow and rate steam ratio. maximum yield of ethylene was 30.37 wt% at cot, residence time and steam ratio of 869oc, 0.208 s and 1.22 g/g, respectively. maximum ...

The purpose of this paper was to review and report the recent advances and progress that have been achieved on the fourteen year old PFGC equation of state. This paper will also discuss the good (pros) and the bad (cons) of this equation of state. Emphasis will be made on the following categories:A. Prediction of the pure component PVT properties1. Hydrocarbons in particular n-alkanes2. Selecte...

Coal, which is usually land plant in origin, occurs in many oil-producing basins. Microscopically, coal consists of various macerals (liptinite, vitrinite, and inertinite). The generative potential of coal reflects the hydrocarbon potential of the composing macerals (Kelly et al., 1985). Although most coals consist of predominantly vitrinite, some contain significant amounts (>20% of total mace...

Host molecules with U-shaped receptor cavities have been derivatized at their convex side with two n-hydrocarbon tails (1), two first-generation (2), and two second-generation (3) monodendritic hydrocarbon tails. Although hosts 1 and 2 display plastic-crystalline behavior, evidence suggests that host 3 forms a cubic liquid-crystalline phase. In this phase, molecules of 3 are arranged in spheric...

Liquid fuels(hydrocarbon and peroxide)are flammableand there is a risk of pool fires during their storage and transportation. In order to measure and develop effective methods for protection and considering safety distances, experimental studies and CFD simulations of pool fire of two hydrocarbon fuels (i.e. gasoline and kerosene) and peroxide (TBPB (tert-butyl peroxybenzoate)) were performed. ...

This document provides a description of a 2 liter hydrocarbon liquid flow calibration standard operated by the National Institute of Standards and Technology (NIST) Fluid Metrology Group to provide flowmeter calibrations for customers. This facility uses a passive piston prover technique where fluid is driven by pumps while the measuring piston is pushed by the fluid over a measured length duri...

Renewable resources can p r o v i d e a s u b s t a n t i a l energy resource f o r t h e Un i ted States. however, i s l i m i t e d t o t h e use o f b i o f u e l s . L i q u i d s are p r e f e r r e d f o r use as t r a n s p o r t a t i o n f u e l s because o f t h e i r h igh energy d e n s i t y and hand l ing ease and safety. feedstock f o r p roduc t ion o f l i q u i d f u e l s [l]...

A mechanism of the solute retention in gas-liquid chromatography has been studied in the nonpolar hydrocarbon solute-polar stationary liquid phase system. N,N,N',N'-tetrakis(2-hydroxyethyl)ethylene diamine (THEED) was used as a polar stationary liquid phase. A dependence of the retention volume of the solutes and of the specific surface area of the liquid-coated, modified alumina upon the liqui...

Botryococcus braunii has long been known as a prodigious producer of liquid hydrocarbon oils that can be converted into combustion engine fuels. This draft genome for the B race of B. braunii will allow researchers to unravel important hydrocarbon biosynthetic pathways and identify possible regulatory networks controlling this unusual metabolism.

Plastics are not easily biodegradable; and because of these characteristics they can remain under landfill and water for a very long period of time. All over the world only 6% of waste plastics are recycled and the rest of all waste plastics are dumped into landfills. An experiment was conducted in a laboratory scale batch process under Labconco’s fume hood utilizing low density polyethylene (L...