AIR POLLUTION CONTROL TECHNOLOGY HANDBOOK - CHAPTER 12 docx

... be air dried and returned to the tower. 12. 3.2 C ONTINUOUS C ONTACT , S TEADY -S TATE , M OVING -B ED A DSORBERS Countercurrent, continuous-contact, steady-state, ... min of the cycle. Figure 12. 5 illustrates a fixed-bed VOC steam regeneration system with recovery of the organic material. 12. 12.2 HOT AIR OR GAS REGENERATION Heated air or hot off gase...

Ngày tải lên: 11/08/2014, 06:22

... Control- technology evaluation • New-source review A current frequent use for atmospheric-diffusion models is in air- quality impact analysis. The models serve as the heart of the plan for new-source ... dispersion. AERMOD, along with AERMET, a meteorological data pre- processor, and AERMAP, a terrain data preprocessor, are state-of-the-art air quality models destined to become EPA’s re...

Ngày tải lên: 11/08/2014, 06:22

... lbm G lb =×× = 18 01 60 1 0 29 37 25 2 . min min . . - - -moles hr-ft 2 H G Ka H lb lb ft OG y OG = == 37 25 40 931 . . . -moles h-ft -moles h-ft 2 3 9588ch11 frame Page 155 Tuesday, September ... of packing LLG lb H O lb air G lbs air L lbm Q lbm ft lb H O gal gpm L = ( ) × =×= = × = 2 2 2 1 6759 18 01 30 18 30 18 41 81 832 151 7 min min . min . . . -ft -ft -ft 2 2 2 9588ch11 fra...

Ngày tải lên: 11/08/2014, 06:22

... With high concentrations of pollutant, condensers are frequently employed as preliminary air- pollution- control devices prior to other devices such as incinerators, absorbers, or adsorbers. Flows ... system at 1 atm. Q BTU h T =× =17 400 25 9758 451 979,. , LMTD Area = − () = = × 124 4 100 7 124 4 100 7 112 13 451 979 100 112 13 ln . . . , . Area zU h UT T dQ O g OG L Q T T = + ...

Ngày tải lên: 11/08/2014, 06:22

... distribution shown in Figure 19.5. The distribution produces a bell- shaped curve when plotted on the log-scale, indicative of a log-normal distribution. When the same data are plotted as a cumulative ... linear y-axis, a normal distribution would plot as a straight line. On log-probability paper, a log normal distribution would plot as a FIGURE 19.2 Sample particle size distribution on l...

Ngày tải lên: 11/08/2014, 06:22

... engineer from all other engineers. As the field of air- pollution control engineering has evolved over the past several decades, it is obvious that the air- pollution control engineer must adopt the ideas and ... and α = 1.0 or Air density at 500 F: Air specific heat: C - Water specific heat C - Air enthalpy at 1: H Air enthalpy at 2: H air P avg P avg 1 2 °=...

Ngày tải lên: 11/08/2014, 06:22

... Technologies Handbook Chang Ho Oh The MEMS Handbook Mohamed Gad-el-Hak Air Pollution Control Technology Handbook Karl B. Schnelle, Jr. and Charles A. Brown Forthcoming Titles Biomedical Technology ... Condensation 12. 8 Polanyi Potential Theory 12. 9 Unsteady-State, Fixed-Bed Adsorbers 12. 10 Fixed-Bed Adsorber Design Considerations 12. 10.1 Safety Considerations 12. 11 P...

Ngày tải lên: 11/08/2014, 06:22

... 1970 amendments established a program of technology- based NSPS so that any new source of air pollution would be required to apply effective air pollution controls. New Source Performance Standards ... production Methyl methacrylate-acrylonitrile- butadiene-styrene production Methyl methacrylate-butadiene-styrene terpolymers production JJJ 9 /12/ 96 7/31/97 Styrene-acrylonitrile pro...

Ngày tải lên: 11/08/2014, 06:22

... of air pollution. Often the selection of control technology does not depend on whether a PSD review is triggered because the same control technology will be required in any case. BACT is a technology- based ... sources of hazardous air pollutants may be regulated by the Maximum Achievable Control Technology (MACT) standards for hazardous air pollutants as discussed in the...

Ngày tải lên: 11/08/2014, 06:22

... test 28 Certification and auditing of wood heaters 28A Measurement of air- to-fuel ratio and minimum achievable burn rates for wood-fired appliances TABLE 5.1 (continued) Code of Federal Regulations ... from material sources and smoke emissions from flares 23 Determination of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans from stationary sources 24 Determination of vol...

Ngày tải lên: 11/08/2014, 06:22