Author: Jeanne Hickman BalbachPublisher:
ISBN:
Category :
Languages : en
Pages : 136
Book Description
Modeling the Removal of Sulfur Dioxide and Nitrogen Oxides from Flue Gases Using Combined Plasma and Optical Processing
Author: Jeanne Hickman BalbachPublisher:
ISBN:
Category :
Languages : en
Pages : 136
Book Description
Process Development in Removing Sulfur Dioxide from Hot Flue Gases (in Four Parts).
Author: Daniel BienstockPublisher:
ISBN:
Category : Flue gases
Languages : en
Pages : 40
Book Description
Sulfur Oxides Control Technology Series
Author: Summary report
Author: Industrial Environmental Research Laboratory (Research Triangle Park, N.C.)Publisher:
ISBN:
Category : Flue gases
Languages : en
Pages : 44
Book Description
Energy Research Abstracts
Author: Proceedings
Author: Commercial Demonstration of the NOXSO SO2/NO3 Removal Flue Gas Cleanup System. Quarterly Technical Progress Report No. 11, September 1--November 30, 1993
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 61
Book Description
The NOXSO process is a dry, post-combustion flue gas treatment technology which uses a regenerable sorbent to simultaneously adsorb sulfur dioxide (SO2) and nitrogen oxides (NO3 from the flue gas of a coal-fired utility boiler. In the process, the SO2 is reduced to sulfur by-product and the NO3 is reduced to nitrogen and oxygen. It is predicted that the process can economically remove 90% of the acid rain precursor gases from the flue gas stream in a retrofit or new facility. The objective of the NOXSO Demonstration Project is to design, construct, and operate a flue gas treatment system utilizing the NOXSO process. The effectiveness of the process will be demonstrated by achieving significant reductions in emissions of sulfur and nitrogen oxides. In addition, sufficient operating data will be obtained to confirm the process economics and provide a basis to guarantee performance on a commercial scale. The project is presently in the project definition and preliminary design phase. Data obtained during pilot plant testing which was completed on July 30, 1993 is being incorporated in the design of the commercial size plant. A suitable host site to demonstrate the NOXSO process on a commercial scale is presently being sought. Preliminary engineering studies provided information to decide on the basic plant arrangement. A scaled up POC design was selected as the general arrangement of choice based on a cost versus technical risk assessment. The first step in developing an adsorber computer simulation was completed. Several processes for producing liquid SO2 from the regenerator offgas were developed and evaluated. It was concluded that the Claus and burn process which involves making elemental sulfur as an intermediate product was the best choice. The NOXSO process computer simulation was updated to include semi-plug solids flow through the fluidized beds of the sorbent heater and cooler. Heat loss calculations were also added.
The Status of Flue Gas Desulfurization Applications in the United States
Author: United States. Federal Power CommissionPublisher:
ISBN:
Category : Desulfurization
Languages : en
Pages : 82
Book Description
Flue Gas Dry Scrubbing Using Pulsed Electron Beams
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
Electron beam dry scrubbing is a technique for removing in a single step both nitrogen oxides (NO(subscript x)) and sulfur dioxide (SO2) from the off-gas generated by utilities burning high sulfur coal. The use of pulsed electron beams may provide the most cost-effective solution to the implementation of this technique. This paper presents the results of plasma chemistry calculations to study the effect of dose rate, pulse length and pulse repetition rate on pulsed electron beam processing of NO(subscript x) and SO2 in flue gases. The main objective is to determine if the proposed combinations of dose rate, pulse length and pulse repetition rate would have any deleterious effect on the utilization of radicals for pollutant removal. For a dose rate of 2x105 megarads per second and a pulse length of 30 nanoseconds, the average dose per pulse is sufficiently low to prevent any deleterious effect on process efficiency because of radical-radical recombination reactions. During each post-pulse period, the radicals are utilized in the oxidation of NO(subscript x) and SO2 in a timescale of around 200 microseconds; thus, with pulse frequencies of around 5 kilohertz or less, the radical concentrations remain sufficiently low to prevent any significant competition between radical-pollutant and radical-radical reactions. The main conclusion is that a pulsed electron beam reactor, operating with a dose rate of 2x105 megarads per second, pulse length of 30 ns and pulse repetition rate of up to around 5 kHz, will have the same plasma chemistry efficiency as an electron beam reactor operating with a very low dose rate in continuous mode.
Author: