The Prediction of Overall Collection Efficiency of Air Pollution Control Devices from Fractional Efficiency Curves

Sundberg, Ronald E.

doi:10.1080/00022470.1974.10469966

Cited by 9 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The decreased droplet diameter means that the liquid was scattered into many tiny droplets, thereafter raising the chance of collision between droplets and particles. The results indicated that the minimum cut size of PM (i.e., at a removal efficiency of 50%) in the HiGCarb process was about 0.066–0.120 μm, which was greater than that in conventional cyclone . It was also observed that the cut size of PM varied as the rotating speed changed in the HiGCarb process.…”

Section: Resultsmentioning

confidence: 90%

“…The size distribution of PM was analyzed by calculating the median diameter and geometric standard deviation via a log-probability plot. 20 A portable gas analyzer (PG-350, Horiba, Japan) was used to online measure the gaseous compositions including CO 2 , SO 2 , NO/NO x , and O 2 in the flue gas of the petrochemical plant. The resolutions of both O 2 and CO 2 were 0.01 vol %, and 0.01 ppm for both SO 2 and NO/NO x .…”

Section: Methodsmentioning

confidence: 99%

“…Before and after collection of PM samples, the impactors were conditioned under 120 °C for 24 h and weighed by an electronic balance (AUW220D, Shimadzu, Japan) with an appreciable precision of 10 –5 gram. The size distribution of PM was analyzed by calculating the median diameter and geometric standard deviation via a log-probability plot …”

Section: Methodsmentioning

confidence: 99%

“…The results indicated that the minimum cut size of PM (i.e., at a removal efficiency of 50%) in the HiGCarb process was about 0.066−0.120 μm, which was greater than that in conventional cyclone. 20 It was also observed that the cut size of PM varied as the rotating speed changed in the HiGCarb process. This could be ascribed to the dominant mechanisms of PM removal, including Brownian diffusion, interception and inertial impaction, 25 associated with the variation of droplet diameter and velocity under different rotating speeds.…”

Section: Environmental Science and Technologymentioning

confidence: 96%

See 3 more Smart Citations

Environmental Benefit Assessment for the Carbonation Process of Petroleum Coke Fly Ash in a Rotating Packed Bed

Pei

Pan

Ye-mei

et al. 2017

Environ. Sci. Technol.

View full text Add to dashboard Cite

A high-gravity carbonation process was deployed at a petrochemical plant using petroleum coke fly ash and blowdown wastewater to simultaneously mineralized CO and remove nitrogen oxides and particulate matters from the flue gas. With a high-gravity carbonation process, the CO removal efficiency was found to be 95.6%, corresponding to a capture capacity of 600 kg CO per day, at a gas flow rate of 1.47 m/min under ambient temperature and pressure. Moreover, the removal efficiency of nitrogen oxides and particulate matters was 99.1% and 83.2%, respectively. After carbonation, the reacted fly ash was further utilized as supplementary cementitious materials in the blended cement mortar. The results indicated that cement with carbonated fly ash exhibited superior compressive strength (38.1 ± 2.5 MPa at 28 days in 5% substitution ratio) compared to the cement with fresh fly ash. Furthermore, the environmental benefits for the high-gravity carbonation process using fly ash were critically assessed. The energy consumption of the entire high-gravity carbonation ranged from 80 to 169 kWh/t-CO (0.29-0.61 GJ/t-CO). Compared with the scenarios of business-as-usual and conventional carbon capture and storage plant, the economic benefit from the high-gravity carbonation process was approximately 90 and 74 USD per ton of CO fixation, respectively.

show abstract

Section: Resultsmentioning

confidence: 90%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Environmental Science and Technologymentioning

confidence: 96%

See 2 more Smart Citations