Chemical-Looping Combustion (CLC) is an emerging technology for CO2 capture because separation of this gas from the other flue gas components is inherent to the process and thus no energy is expended for the separation. Natural or refinery gas can be used as gaseous fuels and they may contain different amounts of light hydrocarbons. This paper presents the combustion results obtained with a Cu-...

EXECUTIVE SUMMARY This document serves as a DOE post-project assessment of a project in Round 3 of the Clean Coal Technology (CCT) Demonstration Program titled, "Demonstration of SO 2 Removal Using Gas Suspension Absorption Technology." In October 1990, AirPol Inc. entered into a cooperative agreement to conduct the study, with the Tennessee Valley Authority (TVA) as the host and co-sponsor. Th...

Emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) from the stack flue gases, fly ashes and bottom ashes of various stationary sources were investigated. The mean total PCDD/F I-TEQ concentration of flue gas ranged from 0.00681 to 0.703 ng I-TEQ/Nm. However, the emission factor of PCDD/F from various incinerators was 0.00827 to 3.50 μg I-TEQ/ton, whereas it was 5.36 μg I...

Membrane gas separation for carbon capture has traditionally been focused on high pressure applications, such as pre-combustion capture and natural gas sweetening. Recently a membrane-cryogenic combined process has been shown to be cost competitive for post-combustion capture from coal fired power stations. Here, the membrane-cryogenic combined process is investigated for application to post-co...

The paper discusses the various methods used in Europe to reduce emissions of pollutants from the stack gases of municipal incinerators. With respect to NOx, the paper mentions two experimental postcombustion control approaches involving the addition of chemicals to the wet-scrubber system to oxidize or reduce the NOx to absorbable NO 2 or dischargeable N 2. As pointed out , these methods would...

The (14)C method is a very reliable and sensitive method for industrial plants, emission authorities and emission inventories to verify data estimations of biogenic fractions of CO(2) emissions. The applicability of the method is shown for flue gas CO(2) samples that have been sampled in 1-h intervals at a coal- and wood-fired power plant and a waste incineration plant. Biogenic flue gas CO(2) ...

*1 Yokohama Dockyard & Machinery Works *2 Yokohama Research & Development Center, Technical Headquarters It usually takes a few weeks to analyze dioxins concentration in flue gas from MSW incinerators by official method. In order to reduce the required time for analysis, we have developed an on-line measuring equipment for pentachlorodibenzofuran (P5CDF) and a real-time measuring equipment for ...

A highly efficient technique of contaminant gas reduction, Turbulent Contact Absorber (TCA), is applied to CO2 removal from a typical flue gas. Aqueous K2CO3 sorbent was evaluated as a regenerable sorbent for CO2 from the flue gas. In order to identify the system, momentum and mass balance equations were written for the TCA tower. A flat plate falling film model was employed to simulate the TCA...

Sun Microsystems Laboratories 1.1 Designing Concurrent Data Structures . . . . . . . . . . . . . 1-1 Performance • Blocking Techniques • Nonblocking Techniques • Complexity Measures • Correctness • Verification Techniques • Tools of the Trade 1.2 Shared Counters and Fetch-and-φ Structures . . . . . 1-12 1.3 Stacks and Queues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

The exploration of offshore gas/oil has been moving to deepwater fields as big reservoirs have been found and technologies have improved. Presently, the most active areas in deepwater gas/oil field development are Africa and the GOM (Gulf of Mexico) in North America. There are many technological challenges in developing deepwater gas/oil fields such as: flow assurance, subsea systems, riser sys...