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Americas

Environmental groups to seek suspension of Shell permits in Arctic region

The request comes after a drilling rig owned by Shell broke free of a tug boat late last week and then wedged itself on rocks off Sitkalidak Island. Environmental groups say the accident demonstrates how risky it is for oil companies to operate in the icy, foggy and often stormy conditions near Alaska.

Shell drilling rig accident in Alaska could jeopardize future Arctic oil projects

Shell had said it would invest $5bn to explore for oil and gas in the Arctic, but extreme weather has riddled the project with accidents and missed schedules and could raise the hackles of environmentalists. That in turn might hurt Noble Corp. and others seeking to expand exploration in the region.

US votes to reinstate biodiesel tax incentive

HP Editorial Staff: HP News

The $1/gal incentive was first implemented in 2005, though Congress has allowed it to lapse twice. It will be reinstated retroactively to Jan. 1, 2012, and to the end of 2013.

Calumet completes acquisition of NuStar refinery, terminal near San Antonio

The acquired assets include a refinery in San Antonio, Texas with crude oil throughput capacity of approximately 14,500 bpd. The refinery produces ultra-low sulfur diesel, jet fuel, specialty solvents, reformates, naphtha and vacuum gas oil. The aggregate deal price was $115 million.

Optimize LNG boil-off gas systems for regasification terminals

Ranhill WorleyParsons: Zolfkhani, M.

Depending on LNG composition, N2 content and plant operating mode, an operating pressure of 7 barg to 8 barg was found by the study to be the optimum pressure range.

Viability of GTL for the North American gas market

Hatch Ltd.: Salehi, E.  |  Nel, W.  |  Save, S.

New developments in FT technology will enable economically viable gas-to-liquids (GTL) facilities at a smaller scale, compared with existing industrial facilities.

Molecular sieves in gas processing: Effects and consequences by contaminants

CECA SA: Terrigeol, A.

The principles of adsorption on molecular sieves are easy to understand, but practice sometimes reveals traps to avoid.

Improve evaluation of brittle-fracture resistance for vessels

Becht Engineering Co. Inc.: Sims, J. R.

This article discusses a new approach and spreadsheet tool for engineers that can be used to provide operating pressure limits as a function of vessel-metal temperatures.

Refiners now have a new biofuel option

Butamax Advanced Biofuels: Schubert, A.

Biobutanol is coming to market as a gasoline blendstock and can be efficiently made by a range of renewable feedstocks.

Evaluate pressure relief system forces in existing installations

Smith & Burgess LLC: D. Smith  |  White, J.
Frenk Water Technologies LLC: Frenk, B.

The purpose of this study is to limit the number of relief valves that require rigorous engineering calculations to determine the adequacy of the installation.