Petrochemicals

Intensified Heat Transfer Technology (IHT) is the use of radiant coil inserts that have a twisted baffle integrated with their inner surface. The inserts have the same diameter and metallurgy as the radiant coil, and are placed strategically in the coil to create turbulence in the process fluid,...

The regulations for sulfur reduction in marine fuels are impacting the whole spectrum beginning from the production of the fuel in the refineries to the end use in Marine diesel engines. To start with, from 1/1/2010, the European Union regulations call for use of fuel with a maximum of 0.1% sulfur...

The measurements of NO, NO2 and NH3 have been a challenge for analytical chemists for many years. This paper will deal primarily with new advances in technology for on-line NO and NO2 analysis using the paper tape technology from CI Analytics. The evolution of the instrument from CI Analytics will...

Stricter environmental emissions regulations and increased processing of severe crude oil fractions is causing H2 demand to grow across the refining industry. Costs associated with new H2 plant construction have been escalating, so refiners are increasingly looking for low capital cost retrofit...

At approximately 10:15 p.m. on Sunday, May 17, 2009, there was a sudden and large hydrocarbon release from a main process pipe in the Ethylene Unit at the Sunoco Marcus Hook, Pennsylvania Refinery. The release found an ignition source at an operating process furnace within 2 seconds, resulting in a...

This paper discusses the impact of silicon on the deactivation of naphtha desulphurization, pygas hydrotreatment and platforming catalysts, and describes an improvement in the feedstock quality control, motivated by the occurrence of that contaminant in the straight run naphtha used by Braskem...

During resid conversion processes, such as visbreaking or hydroconversion, more saturated pendant groups are cracked off asphaltenes, making them less soluble. Meanwhile, the more saturated volatile liquids formed during the conversion are often nonsolvents for asphaltenes. As a result, these...

Furnace revamps provide opportunities to enhance new technologies, add feedstock flexibility, increase production capacity, improve efficiency and meet more stringent environmental regulations. With the current economic situation and anticipated environmental requirements, construction of...

The International Maritime Organization's (IMO) has adopted new emissions standards, MARPOL Annex VI, for large ships and their fuels in order to reduce air pollution from the global shipping industry. For the Sulfur Emission Control Area (SECA), including North Sea and California, starting from 1...

An advanced characterization program was designed and implemented to identify the chemical nature of contaminants present in the feed to a flexi-cracker. The solid contaminants removed from the naphtha feed had similar amounts of inorganic and organic materials. Iron and silicone were the most...