Delaware

C. A. Lapple and co-workers, Fluid and Particle Mechanics, University of Delaware, Newark, Del., 1956, p. 292. 

In Delaware, the Regulation for the Management of Extremely Ha2ardous Substances Act, developed in response to the Bhopal disaster and several chemical-release incidents in Delaware, became effective in 1989 (27,28). The regulations Hst 88 toxic substances, 32 flammable substances, and 50 explosive substances. A sufficient quantity is specified for each of these materials, based on potential for a catastrophic event at a distance of 100 m from a potential source of a 1-h release. 

Colorimetric methods have led to the development of visual devices for measurement of benzene concentration. These visual detection tubes have been popular since the 1960s and have provided a simple and rehable method for evaluating ambient aromatic vapor contamination. These products are available from anumber of manufacturers such as Drager (Lubeck, Germany), Gastec (Tokyo, Japan), Kitagawa (Kawasaki, Japan), DuPont (Wilmington, Delaware, USA), and 3M (St. Paul, Minnesota, USA) (85). 

Depending on energy and raw material costs, the minimum economic carbon disulfide plant size is generaHy in the range of about 2000—5000 tons per year for an electric furnace process and 15,000—20,000 tons per year for a hydrocarbon-based process. A typical charcoal—sulfur facHity produces approximately 5000 tons per year. Hydrocarbon—sulfur plants tend be on the scale of 50,000—200,000 tons per year. It is estimated that 53 carbon disulfide plants existed throughout the world in 1991 as shown in Table 2. The production capacities of known hydrocarbon—sulfur based plants are Hsted in Table 3. The United States carbon disulfide capacity dropped sharply during 1991 when Akzo Chemicals closed down a 159,000 ton per year plant at Delaware City, Delaware (126). The United States carbon disulfide industry stiH accounts for about 12% of the total worldwide instaHed capacity. 

Prank T. Bodurtha, Sc.D., E.I. DuPont de Nemours and Co., Inc. (retired), Wilmington, Delaware (retired) Consultant, Frank T. Bodurtha, Inc. (Section 26, Process Safety)... 

James B. Dunson, B.S., Principal Consultant, E. I. duPont de Nemours Co. Member American Institute of Chemical Engineers Registered Professional Engineer (Delaware) (Section 17, Gas-Solid Operation and Equipment)... 

The contributions of William F, Ames (retired), Georgia Institute of Technology Arthur E, Hoerl (deceased). University of Delaware and M, Zuhair Nashed, University of Delaware, to material that was used from the sixth edition is gratefully acknowledged,... 

Application of the momentum equation to ejectors of other types is discussed in Lapple (Fluid and Paiticle Dynamics, University of Delaware, Newark, 1951) and in Sec. 10 of the Handbook. 

For banks of in-line tubes,/for isothermal flow is obtained from Fig. 6-43. Average deviation from available data is on the order of 15 percent. For tube spacings greater than 3D(, the charts of Gram, Mackey, and Monroe (Trans. ASME, 80, 25—35 [1958]) can be used. As an approximation, the pressure drop can be taken as 0.32 velocity head (based on V ) per row of tubes (Lapple, et al.. Fluid and Paiiicle Mechanics, University of Delaware, Newark, 1954). 

Laminar Region Bergelin, Colburn, and Hull Univ. Delaware... 

FIG. 6-61 Terminal velocities of spherical particles of different densities settling in air and water at 70°F under the action of gravity. To convert fhs to m/s, multiply by 0.3048. (From Lapple, etal.. Fluid and Particle Mechanics, University of Delaware, Newark, 1951, p. 292. )... 

Findfrom the ideal-tube bank curve for a given tube layout at the calculated value of (NRe), using Fig. 11-9, which is adapted from ideal-tnbe-bank data obtained at Delaware by Bergehn et al. [Trans. Am. Soc. Mech. Ting., 74, 953 (1952) and the Grimison correlation [Tran.s. Am. Soc. Mech. Tng., 59, 583 (1937)]. 

A comparison of experimental data for carbon dioxide absorption obtained oy Hatta anci Katori (op. cit.), Grimley [Trans. Inst. Chem. Eng., 23, 228 (1945)], and Vyazov [Zh. Tekh. Fiz. (U.S.S.R.), 10, 1519 (1940)] and for absorption or oxygen and hydrogen by Hodgson (S. M. thesis, Massachusetts Institute of Technology, 1949), Henley (B.S. thesis. University of Delaware, 1949), Miller (B.S. thesis. University of Delaware, 1949), and Richards (B.S. thesis. University of Delaware, 1950) was made by Shei wood and Pigford (Absorption and Extraction, McGraw-Hill, New York, 1952) and is indicated in Fig. 14-78. 

Colburn (chemical engineering lecture notes, University of Delaware, 1943) proposed that the optimum reflux ratio is... 

Griffin, M.S. thesis in chemical engineering. University of Delaware, 1975. 

Soft drink, Delaware Anaerobic 166 Organic COD Anaerobic >4000 0.5 2-24 20 0... 

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