The Effect of Chemical Additives on the Synthesis of Ethanol. Technical Progress Report No. 9, September 16, 1989--December 15, 1989 (open access)

The Effect of Chemical Additives on the Synthesis of Ethanol. Technical Progress Report No. 9, September 16, 1989--December 15, 1989

The objective of this research is to elucidate the role of various chemical additives on ethanol synthesis over Rh- and Ni-based catalysts. Chemical additives used for this study will include S, P, Ag, Cu, Mn, and Na which have different electronegativities. The effect of additives on the surface state of the catalysts, heat of adsorption of reactant molecules, reaction intermediates, reaction pathways, reaction kinetics, and product distributions is/will be investigated by a series of experimental studies of NO adsorption, reaction probing, study state rate measurement, and transient kinetic study. A better understanding of the role of additive on the synthesis reaction may allow us to use chemical additives to manipulate the catalytic properties of Rh- and Ni-based catalysts for producing high yields of ethanol from syngas.
Date: April 9, 1990
Creator: Chuang, S. S. C.
Object Type: Report
System: The UNT Digital Library
Computing and data handling recent experiences at Fermilab and SLAC (open access)

Computing and data handling recent experiences at Fermilab and SLAC

Computing has become evermore central to the doing of high energy physics. There are now major second and third generation experiments for which the largest single cost is computing. At the same time the availability of cheap'' computing has made possible experiments which were previously considered infeasible. The result of this trend has been an explosion of computing and computing needs. I will review here the magnitude of the problem, as seen at Fermilab and SLAC, and the present methods for dealing with it. I will then undertake the dangerous assignment of projecting the needs and solutions forthcoming in the next few years at both laboratories. I will concentrate on the offline'' problem; the process of turning terabytes of data tapes into pages of physics journals. 5 refs., 4 figs., 4 tabs.
Date: April 9, 1990
Creator: Cooper, P. S.
Object Type: Article
System: The UNT Digital Library
The Effect of Chemical Additives on the Synthesis of Ethanol (open access)

The Effect of Chemical Additives on the Synthesis of Ethanol

The objective of this research is to elucidate the role of various chemical additives on ethanol synthesis over Rh- and Ni-based catalysts. Chemical additives used for this study will include S, P, Ag, Cu, Mn, and Na which have different electronegativities. The effect of additives on the surface state of the catalysts, heat of adsorption of reactant molecules, reaction intermediates, reaction pathways, reaction kinetics, and product distributions is/will be investigated by a series of experimental studies of NO adsorption, reaction probing, study state rate measurement, and transient kinetic study. A better understanding of the role of additive on the synthesis reaction may allow us to use chemical additives to manipulate the catalytic properties of Rh- and Ni-based catalysts for producing high yields of ethanol from syngas.
Date: April 9, 1990
Creator: Chuang, S. S. C.
Object Type: Report
System: The UNT Digital Library
Defense waste processing facility (DWPF) environmental dosimetry data (open access)

Defense waste processing facility (DWPF) environmental dosimetry data

The original Environmental Impact Statement for the DWPF was issued in 1982. Since that time, estimated releases of radioactivity to the environment have changed because of the DWPF process. In addition, the methodology for calculating offsite doses from routine releases has changed. In anticipation of a potential supplement to the 1982 EIS, current dosimetry methodology has been used to estimate offsite doses from the current as-constructed estimate of radioactivity releases. Offsite doses have also been calculated for the radioactivity release data published in the 1982 EIS using current dosimetry methodology. The two data sets may therefore be used to compare the estimated original and current impacts. This memorandum documents the results of the offsite dose calculations for routine operation of the DWPF. Also included is a brief description of methodology and parameters used in the calculations. 8 refs., 2 figs., 10 tabs.
Date: April 9, 1990
Creator: Marter, W. L. & Bauer, L. R.
Object Type: Report
System: The UNT Digital Library