Download or read book Prototype Evaluation of Commercial Second Generation Low NOx Burner Performance and Sulfur Dioxide Capture Potential written by A. Abele and published by . This book was released on 1985 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The expanded use of coal for utility and industrial boiler applications has focused attention on the control of NO[subscript x] and SO2 emissions from pulverized coal combustion. Various EPA programs have demonstrated the principle of staged combustion as a means of controlling NO[subscript x] emissions. Other programs are evaluating the potential for SO2 control with the injection of calcium-based sorbents into furnace combustion chambers. Under this program, Steinmuller Staged Mixing (SM) burners were tested in EPA's Large Watertube Simulator (LWS) test facility. The objectives of the program were to provide a comparative evaluation of the SM burner in the LWS with field operation and to optimize its performance for low NO[subscript x] emissions, high efficiency, and combined NO[subscript x]/SO2 control with sorbent injection. The experimental effort included evaluating two SM burners in the LWS using three coals and three sorbents. The evaluation of the two burners, the Weiher SM burner currently in operation in a 700 MW boiler in West Germany and a second generation SM burner, included characterization of burner performance and NO[subscript x] emissions and SO2 reduction with sorbent injection through burner passages. The impact of the NO[subscript x] and SO2 control techniques on ash characteristics (including slagging and fouling behavior, and SO2/SO3 speciation) was also evaluated.
Download or read book Prototype Evaluation of Commercial Second Generation Low NOx Burner Performance and Sulfur Capture written by R. A. Lisauskas and published by . This book was released on 1986 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pilot scale combustion tests were conducted on a Riley Stoker second generation low-NO[subscript x] burner combined with dry sorbent injection for sulfur dioxide (SO2) control. The burner design is based on the distributed mixing concept. Combustion tests were conducted at 100 x 106 Btu/hr (29 MW0 in EPA's Large Watertube Simulator (LWS) test furnace. Results were obtained for three different U.S. coals and two sorbents. Nitrogen oxides (NO[subscript x]) were reduced by up to 60% with this advanced burner design. SO2 reductions of 50% at a Ca/S ratio of 2 were obtained with hydrated lime (Ca(OH)2). Highest reductions were achieved when the hydrozide was injected through tertiary air ports on the periphery of the burner. When limestone was used as the sorbent, SO2 capture was on the order of 35% at a Ca/S of 2. In order to aid the scale-up of the pilot scale results to utility and industrial boilers, two commercial Riley burners were also tested at two different scales (100 and 50 x 106 Btu/hr). A furnace heat release parameter was used to extrapolate pilot scale NO[subscript x] emissions to operating field boilers. In addition, the Riley burner test results are compared with data from other burners also tested in the LWS test facility.
Download or read book Flue Gas Desulfurization and Industrial Minerals written by M. Michael Miller and published by . This book was released on 1993 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains 4,101 references on FGD [Flue Gas Desulfurization] ... primarily from 1982 through June 1993. Complements the "Flue Gas Desulfurization and Denitrification" bibliography published by the U.S. Dept. of Energy in Jan. 1985. References were located on the Energy, Science and Technology, Pollution Abstracts, and Environmental Bibliography databases. Primarily covers FGD and the use of industrial minerals in the desulfurization process or in by-product utilization and disposal. Emphasizes post-combustion removal of sulfur dioxide through processes such as in-duct injection and wet and dry scrubbing.
Download or read book ORD Publications Announcement written by Center for Environmental Research Information (U.S.) and published by . This book was released on 1990 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1986 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1986 with total page 1442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EPA Publications Bibliography 1984 1990 written by and published by . This book was released on 1990 with total page 1988 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1989 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1986 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EPA Publications Bibliography written by and published by . This book was released on 1986 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1989 with total page 1328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1986 with total page 1336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index Keyword A L written by and published by . This book was released on 1986 with total page 1164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal Abstracts written by and published by . This book was released on 1987 with total page 798 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EPA Publications Bibliography 1984 1990 Indexes written by United States. Environmental Protection Agency and published by . This book was released on 1990 with total page 2130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Gas Reburning Low NOx Burners on a Wall Fired BoilerPerformance and Economics Report Gas Reburning Low NOx Burner System Cherokee Station Unit 3 Public Service Company of Colorado written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Under the U.S. Department of Energy's Clean Coal Technology Program (Round 3), aproject was completed to demonstrate control of boiler NOX emissions and to a lesserdegree, due to coal replacement, SO2 emissions. The project involved combining GasReburning with Low NOX Burners (GR-LNB) on a coal-fired electric utility boiler todetermine if high levels of NOX reduction (70%) could be achieved. Sponsors of the projectincluded the U.S. Department of Energy, the Gas Research Institute, Public ServiceCompany of Colorado, Colorado Interstate Gas, Electric Power Research Institute, and theEnergy and Environmental Research Corporation. The GR-LNB demonstration wasperformed on Public Service Company of Colorado's (PSCO) Cherokee Unit#3, locatedin Denver, Colorado. This unit is a 172 MW wall-fired boiler that uses ColoradoBituminous, low-sulfur coal. It had a baseline NOX emission level of 0.73 lb/106 Btu usingconventional burners. Low NOX burners are designed to yield lower NOX emissions than conventional burners. However, the NOX control achieved with this technique is limited to 30-50%. Also, withLNBs, CO emissions can increase to above acceptable standards. Gas Reburning (GR)is designed to reduce NOX in the flue gas by staged fuel combustion. This technologyinvolves the introduction of natural gas into the hot furnace flue gas stream. When combined, GR and LNBs minimize NOX emissions and maintain acceptable levels of COemissions. A comprehensive test program was completed, operating over a wide rangeof boiler conditions. Over 4,000 hours of operation were achieved, providing substantialdata. Measurements were taken to quantify reductions in NOX emissions, the impact onboiler equipment and operability and factors influencing costs. The GR-LNB technologyachieved good NOX emission reductions and the goals of the project were achieved. Although the performance of the low NOX burners (supplied by others) was less thanexpected, a NOX reduction of 65% was achieved at an average gas heat input of 18Y0. Theperformance goal of 70% reduction was met on many test runs, but at a higher reburn gasheat input. S02 emissions, based on coal replacement, were reduced by 18Y0. Theperformance goal of 70% reduction was met on many test runs, but at a higher reburn gasheat input. S02 emissions, based on coal replacement, were reduced by 18Y0. Toward the end of the program, a Second Generation gas injection system was installed. Higher injector gas pressures were used that eliminated the need for flue gas recirculationas used in the first generation design. The Second Generation GR resulted in similar NOXreduction performance as that for the First Generation. With an improvement in the LNBperformance in combination with the new gas injection system, the reburn gas could bereduced to 12.5% of the total boiler heat input to achieve al 64?40 reduction in NO, emissions. In addition, the OFA injectors were modified to provide for better mixing tolower CO emissions.
