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Process and analytical studies of enhanced low severity co-processing using selective coal pretreatment

Description: This report describes progress on research during the eleventh quarter of this contract dealing with applications of coal pretreatment techniques in coal/oil co-processing and direct hydroliquefaction. The objectives of the project are to investigate various coal pretreatment techniques and to determine the effect of these pretreatment procedures on the reactivity of the coal. Reactivity enhancement will be evaluated under both direct hydroliquefaction and co-processing conditions. Coal convers… more
Date: 1991-06~
Creator: Baldwin, R. M.; Gaur, S. & Miller, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Enthalpy measurement of coal-derived liquids. Quarterly technical progress report, July-September 1980

Description: Equipment modifications to a Freon 11 boil-off type calorimeter are described. The calorimetric system was used to measure the enthalpies of thiophene experimentally. Data were taken over a temperature range of 100/sup 0/F to 750/sup 0/F at pressures of 50, 100, 200, 400, 600, 825.9 (the critical), 1000, and 1500 psia. Thermodynamic properties derived from the data are compared to values in the literature, and the agreement is exceptionally good. The data are then compared directly to results c… more
Date: September 15, 1980
Creator: Kidnay, A. J. & Yesavage, V. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mechanisms and kinetics of coal hydrogenation. Progress report, January-June 1980

Description: The objective of this task is to utilize the continuous-flow bench-scale coal liquefaction reactor system at CSM to investigate the rate of reaction of different coals at different processing conditions. Particularly, reaction rates at short residence times are to be measured in a Continuous Flow Stirred Tank Reactor (CSTR), and this information used to model reactions in the Plug Flow Reactor (PFR) section of the unit. Work during the past 6 months has focused on completing modifications to th… more
Date: July 1, 1980
Creator: Gary, J H; Baldwin, R M & Bain, R L
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mechanisms and kinetics of coal hydrogenation. Quarterly progress report, October-December 1979

Description: Colorado School of Mines is conducting coal hydrogenation research with the following objectives and scope of work: (1) Comparison of the rates of coal hydrogenation in continuous flow stirred tank and tube flow reactors using pure hydrogen, catalyzed CO-STEAM, and syngas processing conditions; (2) Investigation of the influence of coal rank on the rate of hydrogenation of coal to preasphaltene, asphaltenes, and oil in batch reactors; (3) Batch evaluation of the effect of operating conditions (… more
Date: February 1, 1980
Creator: Gary, J. H.; Baldwin, R. M. & Bain, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Utilization of shale oil as a feedstock for steam pyrolysis and petrochemical intermediate production. Quarterly technical progress report, June-August 1978

Description: During the past quarter, 5 runs were made on a number of hydrotreated samples including a mildly hydrotreated simulated in-situ (1.35% N) and two moderately hydrotreated Tosco II (0.82% N and 1.55% N) distillates. The results are, in general, consistent with previous results which indicated an increase in olefins yield as the severity of hydrogenation increased. The olefins yields for the simulated in-situ oil were greater than those for the Tosco II oil for oil hydrogenated to comparable sever… more
Date: September 5, 1978
Creator: Dickson, P. F. & Yesavage, V. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mild coal pretreatment to improve liquefaction reactivity

Description: This report describes work completed during the fourth quarter of a three year project to study the effects of mild chemical pretreatment on coal dissolution reactivity during low severity liquefaction or coal/oil coprocessing. The overall objective of this research is to elucidate changes in the chemical and physical structure of coal by pretreating with methanol or other simple organic solvent and a trace amount of hydrochloric acid and measure the influence of these changes on coal dissoluti… more
Date: 1991-09~
Creator: Miller, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Process and analytical studies of enhanced low severity co-processing using selective coal pretreatment

Description: This report describes progress on research during the seventh quarter of this contract dealing with applications of coal pretreatment techniques in coal hydroliquefaction. The objectives of the project are to investigate various coal pretreatment techniques and to determine the effect of these pretreatment procedures on the reactivity of the coal. Reactivity enhancement will be evaluated under both direct hydroliquefaction and co-processing conditions. Coal conversion utilizing low rank coals a… more
Date: 1990-09~
Creator: Baldwin, R. M. & Miller, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Process and analytical studies of enhanced low severity co-processing using selective coal pretreatment

Description: The objectives of the project are to investigate various coal pretreatment techniques and to determine the effect of these pretreatment procedures on the reactivity of the coal. Reactivity enhancement will be evaluated under both direct hydroliquefaction and co-processing conditions. Coal conversion utilizing low rank coals and low severity conditions (reaction temperatures generally less than 350{degrees}C) are the primary focus of the liquefaction experiments, as it is expected that the effec… more
Date: 1990-06~
Creator: Baldwin, R. M. & Miller, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Process and analytical studies of enhanced low severity co-processing using selective coal pretreatment

Description: This report describes progress on research during the 12th and final quarter of this contract dealing with applications of coal pretreatment techniques in coal/oil co-processing and direct hydroliquefaction. The overall objectives of the project are to investigate various coal pretreatment techniques and to determine the effect of these pretreatment procedures on the reactivity of the coal. Reactivity enhancement will be evaluated under both direct hydroliquefaction and co-processing conditions… more
Date: 1991-09~
Creator: Baldwin, R. M.; Gaur, S. & Miller, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Enthalpy measurement of coal-derived liquids. Technical progress report, May-July 1981. [186 to 732/sup 0/F and 75, 100, and 200 psia]

Description: Enthalpy measurements were initiated on the model compound quinoline. Preliminary results are presented for the temperature region 186 to 732/sup 0/F along isobars of 75, 100, and 200 psia.
Date: July 15, 1981
Creator: Kidnay, A. J. & Yesavage, V. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mild coal pretreatment to improve liquefaction reactivity

Description: This report describes work completed during the fifth quarter of a three year project to study the effects of mild chemical pretreatment on coal dissolution reactivity during low severity liquefaction or coal/oil coprocessing. The overall objective of this research is to elucidate changes in the chemical and physical structure of coal by pretreating with methanol or other simple organic solvent and a trace amount of hydrochloric acid and measure the influence of these changes on coal dissolutio… more
Date: 1991-12~
Creator: Miller, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Process and analytical studies of enhanced low severity co-processing using selective coal pretreatment

Description: This report describes progress on research during the fifth quarter of this contract dealing with applications of coal pretreatment techniques in coal hydroliquefaction by co-processing. The objectives of the project are to investigate various coal pretreatment techniques and to determine the effect of these pretreatment procedures on the reactivity of the coal. Reactivity enhancement will be evaluated under both direct hydroliquefaction and co-processing conditions. Coal conversion utilizing l… more
Date: 1989-12~
Creator: Baldwin, R. M. & Miller, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Composition dependence of fluid thermophysical properties: Theory and modeling

Description: Objectives are studies of equilibrium/nonequilibrium properties of asymmetric fluid mixtures through computer simulation (CS), development of predictive theories of mixture equilibrium properties, development and application of selection algorithm methodology for mixture equations of state, and use of theory to develop new engineering design models for fluid mixtures. Kirwood charging method CS of Lennard-Jones mixtures with large size ratios verified the Kirkwood-Buff/Baxter method of calculat… more
Date: March 29, 1993
Creator: Ely, J.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Role of spent shale in oil shale processing and the management of environmental residues. Final technical report, January 1979-May 1980

Description: The adsorption of hydrogen sulfide on retorted oil shale was studied at 10, 25, and 60/sup 0/C using a packed bed method. Equilibrium isotherms were calculated from the adsorption data and were modeled by the Langmuir, Freundlich, and Polanyi equations. The isosteric heat of adsorption was calculated at three adsorbent loadings and was found to increase with increased loading. A calculated heat of adsorption less than the heat of condensation indicated that the adsorption was primarily due to V… more
Date: August 15, 1980
Creator: Hines, A.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Process and analytical studies of enhanced low severity co-processing using selective coal pretreatment

Description: The findings in the first phase were as follows: 1. Both reductive (non-selective) alkylation and selective oxygen alkylation brought about an increase in liquefaction reactivity for both coals. 2. Selective oxygen alkylation is more effective in enhancing the reactivity of low rank coals. In the second phase of studies, the major findings were as follows: 1. Liquefaction reactivity increases with increasing level of alkylation for both hydroliquefaction and co-processing reaction conditions. 2… more
Date: December 1991
Creator: Baldwin, R. M. & Miller, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mechanisms and kinetics of coal hydrogenation

Description: Colorado School of Mines is engaged in an experimental program to develop comprehensive models for the effects of coal composition upon the kinetics and mechanisms of coal hydrogenation, for the effects of mineral matter additives (disposable catalysts) upon kinetics and mechanisms of coal hydrogenation, and for the kinetics and mechanisms of the hydrogenation of coal derived products such as preasphaltenes, and asphaltenes. Experimental work was completed on a suite of bituminous coals, thus c… more
Date: May 1981
Creator: Baldwin, R M & Furlong, M W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mechanisms and kinetics of coal hydrogenation. Quarterly progress report, October-December 1980

Description: Colorado School of Mines is engaged in an experimental program to develop comprehensive models for the effects of coal composition upon the kinetics and mechanisms of coal hydrogenation, for the effects of mineral matter additives (disposable catalysts) upon kinetics and mechanisms of coal hydrogenation, and for the kinetics and mechanisms of the hydrogenation of coal-derived products such as preasphaltenes and asphaltenes. Safety modifications to the CSM continuous processing unit were complet… more
Date: January 1981
Creator: Gary, J H; Baldwin, R M; Bain, R L & Furlong, M W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Enhancing low severity coal liquefaction reactivity using mild chemical pretreatment

Description: In this paper, we describe results from a study in which mild chemical pretreatment of coal has been used to enhance low severity liquefaction reactivity. We have found that ambient pretreatment of eight Argonne coals using methanol and a trace amount of hydrochloric acid improves THF-soluble conversions 24.5 wt% (maf basis) for Wyodak subbituminous coal and 28.4 wt% for Beulah-Zap lignite with an average increase of 14.9 wt% for liquefaction of the eight coals at 623 K (350{degree}C) reaction … more
Date: July 13, 1992
Creator: Shams, K. G.; Miller, R. L. & Baldwin, R. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Phase equilibrium properties of coal-derived liquids. Technical progress report, July-December 1980

Description: A wide variety of methods have been used to study the phase behavior of mixtures, including: Measuring the phase boundary of binary mixtures, observing property discontinuities from volumetric measurements, and thermal measurements of mixtures, measuring the composition of samples in batch systems, measuring the composition of samples from continuous remixing and separation in recirculating systems, gas-liquid chromatography, and measuring the composition of samples from a once-through flow sys… more
Date: January 1, 1981
Creator: Yesavage, V. F. & Kidnay, A. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mechanisms and kinetics of coal hydrogenation

Description: Colorado School of Mines is engaged in an experimental program to develop comprehensive models for the effects of coal composition upon the kinetics and mechanisms of coal hydrogenation, for the effects of mineral matter additives (disposable catalysts) upon kinetics and mechanisms of coal hydrogenation, and for the kinetics and mechanisms of the hydrogenation of coal derived products such as preasphaltenes, and asphaltenes. Experimental data collection in the area of coal reactivity has contin… more
Date: October 1, 1980
Creator: Gary, J H; Baldwin, R M & Bain, R L
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An automated flow calorimeter for heat capacity and enthalpy measurements at elevated temperatures and pressures

Description: The need for highly accurate thermal property data for a broad range of new application fluids is well documented. To facilitate expansion of the current thermophysical database, an automated flow calorimeter was developed for the measurement of highly accurate isobaric heat capacities and enthalpies of fluids at elevated temperatures and pressures. The experimental technique utilizes traditional electrical power input, adiabatic flow calorimetry with a precision metering pump that eliminates t… more
Date: August 31, 1990
Creator: Yesavage, V. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Vanadium Phosphaate Catalysts for Methanol Production by Selective Oxidation of Methane.

Description: This DOE sponsored study of methane partial oxidation was initiated at Amax Research and Development in Golden, CO in October of 1993. Shortly thereafter the management of Amax closed this R&D facility and the PI moved to the Colorado School of Mines. The project was begun again after contract transfer via a novation agreement. Experimental work began with testing of vandyl pyrophosphate (VPO), a well known alkane selective oxidation catalyst. It was found that VPO was not a selective catalyst … more
Date: October 1997
Creator: McCormick, R.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Process and analytical studies of enhanced low severity co-processing using selective coal pretreatment. Final technical report

Description: The findings in the first phase were as follows: 1. Both reductive (non-selective) alkylation and selective oxygen alkylation brought about an increase in liquefaction reactivity for both coals. 2. Selective oxygen alkylation is more effective in enhancing the reactivity of low rank coals. In the second phase of studies, the major findings were as follows: 1. Liquefaction reactivity increases with increasing level of alkylation for both hydroliquefaction and co-processing reaction conditions. 2… more
Date: December 1991
Creator: Baldwin, R. M. & Miller, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mild coal pretreatment to improve liquefaction reactivity. Final technical report, September 1990--February 1994

Description: Recent research efforts in direct coal liquefaction are focused on lowering the level of reaction severity, identification and determination of the causes of retrogressive reactions, and improving the economics of the process. Ambient pretreatment of coals using methanol and a trace amount of hydrochloric acid was extensively studied in connection with low severity coal liquefaction. Ambient pretreatment of eight Argonne coals using methanol/HCl improved THF-soluble conversions 24.5 wt % (maf b… more
Date: July 1994
Creator: Miller, R. L. & Shams, K. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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