Sulfur control

U.S. Environmental Protection Agency. (2000). Control of Air Pollution from New Motor Vehicles Tier 2 Motor Vehicle Emissions Standards and Gasoline Sulfur Control Requirements. Federal Register 65 6698-6870. 

EPA-Diesel RIA, Regulatory Impact Analysis Heavy-Duty Engine and Vehicle Standards and Highway Diesel Fuel Sulfur Control Requirements. United States Environmental Protection Agency, Air and Radiation EPA420-R-00-026, 2000. December. 

Bai, C., et ak, SKPl connects cell cycle regulators to the ubiquitin proteolysis machinery through a novel motif, the F-box. Cdl, 1996, 86(2), 263-74. Kumar, A. and J. V. Paietta, The sulfur controller-2 negative regulatory gene of Neurospora crassa encodes a protein with -transducin repeats. 

Radical cyclizations are often used in ring formations and are an effective methodology in the synthesis of piperidines. The intramolecular cyclization of an oxime ether, such as 63 onto an aldehyde or ketone gives a new entry into cyclic amino alcohols <99JOC2003, 99H(51)2711>. Similarly, reaction of a terminal acetylene with BujSnH generates a vinyl radical, which will cyclize with an imine moiety to give 3-methylenepiperidine <99TL1515>. The indolizidine alkaloid ipalbidine was prepared by a sulfur-controlled 6-exo-selective radical cyclization of an a/p/ia-phenylthio amide <99H(50)31>. 

The Demand for Sulfur Control Methods in Electric Power Generation... 

EPA-Gasoline-RIA. Regulatory impact analysis—Control of Air pollution from new motor vehicles Tier 2 motor vehicle emissions standards and gasoline sulfur control requirements. US Environmental Protection Agency, Air and Radiation. EPA420-R-99-023, December 1999. 

EPA. Control of air pollution from new motor vehicles heavy-duty engine and vehicle standards and highway diesel fuel sulfur control requirements. Fed. Reg. 2001, 66, 5101-5150. 

D.C. Fee et al., Sulfur control in Fluidised Bed Combustors Methodology for Predicting the Performance of limestone and Dolomite Sorbents , Argonne National Laboratory, Illinois, 1980. 

A sulfur-controlled 6-exo aryl radical cyclization of the iw-phenylsulfanylethene 44 affords the tetrahydroisoquinolinone <97JCS(P1)2291>. Without the sulfur groups on the... 

Sulfur controlled radical cyclization of A -ethenyl-a-bromo-alkanamides occurs in a A-exo-trig manner to give the trans-3,A-Rhodium catalyzed carbene insertion reactions are very useful for the preparation of bicyclic P-lactams but are little used to form monocyclic p-lactams. High yields and exceptional stereocontrol are achieved when a-diazo-amides are decomposed in the presence of rhodium(II) catalysts to give (63) (93BMC2409). 

Kertesz, M.A. and Wietek, C. (2001) Desulfurization and desulfonation applications of sulfur-controlled gene expression in bacteria. Appl Microbiol Biotechnol, 57 (4), 460-466. 

Fluidized-bed combustion materials Unbumed coal, ash, and spent bed material used for sulfur control. The spent bed material (removed as bottom ash) contains reaction products from the absorption of gaseous sulfur oxides (SO2 and SO3). 

The principal technologies for sulfur control are acid gas removal and sulfur recovery. These technologies are well proven commercially and find use throughout the chemical, natural gas, and oil industries. Section 2 briefly discusses sulfur control technologies, and other EPRI reports discuss them in more detail (2). Thermal NO,j and CO emissions are controlled at the combustor. 

Pulverized coal with no sulfur control Pulverized coal with flue gas desulfurization Atmospheric fluidized-bed combustion Pressurized fluidized-bed combustion Integrated gasification combined q cle (IGCC) Advanced IGCC... 

Heavy-Duty Engine and Vehicle Standards and Highway Diesel Fuel Sulfur Control... 

Calgon Carbon Corporation, 1978, Sulfur Control with Metal Oxide-Impregnated Carbon, Bulletin 23-67a. 

Examples of a regular sulfur and an efficient vulcanization (EV) sulfur less cure in nitrile mbber are shown in Table 13.8. Compared to the normal sulfur control, the EV cure system provides comparable initial physical properties, lower (better) compression set, and less change in properties during high temperature aging. 

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