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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.
Partner: UNT Libraries Government Documents Department
open access

Coal liquefaction process streams characterization and evaluation

Description: CONSOL R D is conducting a three-year program to characterize process and product streams from direct coal liquefaction process development projects. The program objectives are two-fold: (1) to obtain and provide appropriate samples of coal liquids for the evaluation of analytical methodology, and (2) to support ongoing DOE-sponsored coal liquefaction process development efforts. The two broad objectives have considerable overlap and together serve to provide a bridge between process developmen… more
Date: March 1, 1992
Creator: Robbins, G.A.; Brandes, S.D.; Winschel, R.A. & Burke, F.P.
Partner: UNT Libraries Government Documents Department
open access

Interactive Chemistry of Coal-Petroleum Processing

Description: The objective of this program is to investigate the interactive thermal and catalytic chemistry of coal and petroleum processing using model compounds and actual petroleum-coal materials. This quarter the interactive catalytic chemistry of model coal and petroleum systems was investigated using combined catalysts of molybdenum naphthenate and vanadyl acetylacetonate. This combination was performed in order to evaluate the effect of the presence of an indigenous residuum metal, vanadium, on mode… more
Date: January 1, 1989
Creator: Curtis, C. W.; Guin, J. A. & Tarrer, A. R.
Partner: UNT Libraries Government Documents Department
open access

Cooperative research program in coal liquefaction

Description: Research continues on coal liquefaction in the following areas: (1) Iron Based Catalysts for Coal Liquefaction; (2) Exploratory Research on Coal Conversion; (3) Novel Coal Liquefaction Concepts; (4) Novel Catalysts for Coal Liquefaction. (VC)
Date: January 1, 1992
Creator: Huffman, G.P. (ed.)
Partner: UNT Libraries Government Documents Department
open access

Low severity coal liquefaction promoted by cyclic olefins

Description: The objective of this project is to evaluate the efficacy of low severity coal liquefaction in the presence of highly reactive hydrogen donors, cyclic olefins. The work that was performed this quarter involved performing a literature search in which different aspects of low severity coal liquefaction were examined. In addition, two new mater's graduate students learned the fundamental differences between high severity coal liquefaction and low severity coal liquefaction by examining the literat… more
Date: January 1, 1991
Creator: Curtis, C.W.
Partner: UNT Libraries Government Documents Department
open access

Cooperative research program in coal liquefaction

Description: This Quarterly Report on coal liquefaction research includes discussion in the areas of (1) Iron Based Catalysts for Coal Liquefaction; (2) Exploratory Research on Coal Conversion; (3) Novel Coal Liquefaction Concepts; (4) Novel Catalysts for Coal Liquefaction. (VC)
Date: January 1, 1991
Creator: Huffman, G.P. (ed.)
Partner: UNT Libraries Government Documents Department
open access

Reactivity of coals under coprocessing conditions

Description: In the recent years greater interest has developed for processes involving coal and petroleum fractions to produce distillate fuels. Coprocessing is especially attractive as a direct liquefaction process because it involves the use of heavy petroleum fractions, so both coal and heavy petroleum resids are upgraded simultaneously. The main distinction of coprocessing from other direct liquefaction processes is that coprocessing is more complex from a chemical standpoint than direct liquefaction p… more
Date: January 1, 1992
Creator: Tomic, J. & Schobert, H.H.
Partner: UNT Libraries Government Documents Department
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Bench-scale co-processing

Description: The objective of this contract is to extend and optimize UOP's single-stage, slurry-catalyzed co-processing scheme. The particular emphasis is one evaluating alternative and disposable slurry-catalyst systems. During the current quarter, Lloydminster vacuum resid was processed without the presence of coal. The objective of this study was to evaluate the manner in which the resid is upgraded at high-severity conditions to help understand the function of the resid during co-processing. This repor… more
Date: February 19, 1992
Creator: Piasecki, C.A. & Gatsis, J.G.
Partner: UNT Libraries Government Documents Department
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Exploratory coprocessing research

Description: The objectives of this project were to (1) study the scope of the beneficial effects of hydrothermal pretreatment of coal on subsequent conversion, (2) identify and study the chemical or physical causes of this effect, and (3) attempt to elucidate the chemistry responsible for any coal-resid synergisms.
Date: September 5, 1991
Creator: Hirschon, A. S.; Tse, D. S.; Malhotra, R.; McMillen, D. F. & Ross, D. S.
Partner: UNT Libraries Government Documents Department
open access

Coal liquefaction: A research and development needs assessment: Final report, Volume 2

Description: Volume II of this report on an assessment of research needs for coal liquefaction contains reviews of the five liquefaction technologies---direct, indirect, pyrolysis, coprocessing, and bioconversion. These reviews are not meant to be encyclopedic; several outstanding reviews of liquefaction have appeared in recent years and the reader is referred to these whenever applicable. Instead, these chapters contain reviews of selected topics that serve to support the panel's recommendations or to illu… more
Date: March 1, 1989
Creator: Schindler, H. D.; Burke, F. P.; Chao, K. C.; Davis, B. H.; Gorbaty, M. L.; Klier, K. et al.
Partner: UNT Libraries Government Documents Department
open access

Processing of Arroyo Grande tar sand using the Recycle Oil Pyrolysis and Extraction (ROPE copyright ) process

Description: The objectives of this study are to (1) evaluate the applications of the ROPE{copyright} process to a California tar sand using the screw pyrolysis reactor-process development unit (SPR-PDU) reactor, (2) produce kinetics data for the recycle product oil-spent sand interaction, and (3) produce oil for end-use evaluation. 6 refs., 1 fig., 23 tabs.
Date: December 1, 1989
Creator: King, S.B.
Partner: UNT Libraries Government Documents Department
open access

Coal based electric generation comparative technologies report

Description: Ohio Clean Fuels, Inc., (OCF) has licensed technology that involves Co-Processing (Co-Pro) poor grade (high sulfur) coal and residual oil feedstocks to produce clean liquid fuels on a commercial scale. Stone Webster is requested to perform a comparative technologies report for grassroot plants utilizing coal as a base fuel. In the case of Co-Processing technology the plant considered is the nth plant in a series of applications. This report presents the results of an economic comparison of this… more
Date: October 26, 1989
Partner: UNT Libraries Government Documents Department
open access

Abstracts and research accomplishments of university coal research projects

Description: The Principal Investigators of the grants supported by the University Coal Research Program were requested to submit abstracts and highlight accomplishments of their projects in time for distribution at a grantees conference. This book is a compilation of the material received in response to the request. Abstracts discuss the following area: coal science, coal surface science, reaction chemistry, advanced process concepts, engineering fundamentals and thermodynamics, environmental science.
Date: June 1, 1991
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.
Partner: UNT Libraries Government Documents Department
open access

Coal liquefaction process streams characterization and evaluation

Description: Consol R D is conducting a three-year program to characterize process and product streams from direct coal liquefaction process development projects. The program objectives are two-fold: (1) to obtain and provide appropriate samples of coal liquids for the evaluation of analytical methodology, and (2) to support ongoing DOE-sponsored coal liquefaction process development efforts. The two broad objectives have considerable overlap and together serve to provide a bridge between process developmen… more
Date: September 1, 1991
Creator: Brandes, S. D.; Winschel, R. A.; Burke, F. P. & Robbins, G. A.
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.
Partner: UNT Libraries Government Documents Department
open access

Coal liquefaction process streams characterization and evaluation

Description: Consol R D is conducting a three-year program to characterize process and product streams from direct coal liquefaction process development projects. The program objectives are two-fold: (1) to obtain and provide appropriate samples of coal liquids for the evaluation of analytical methodology, and (2) to support ongoing DOE-sponsored coal liquefaction process development efforts. The two broad objectives have considerable overlap and together serve to provide a bridge between process developmen… more
Date: November 1, 1991
Creator: Robbins, G. A.; Brandes, S. D.; Winschel, R. A. & Burke, F. P.
Partner: UNT Libraries Government Documents Department
open access

Operation and maintenance of DOE/PETC Combustion Test Facility

Description: The contract was divided into eight programs: alternative fuels/in-house research and development; flue gas cleanup research and development; advanced research and technology development; analytical chemistry support; advanced combustion technology; coal preparation support; continuous hydrotreaters, co-processing/coal liquids upgrading; and methane activation. These programs developed as a result of various changes made to the original eight programs. (1) A new task order, entitled Evaluation … more
Date: January 1, 1989
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.
Partner: UNT Libraries Government Documents Department
open access

Inhibition of retrogressive reactions in coal/petroleum co-processing

Description: The overall objective of this project is to develop a fundamental understanding of the reactions occurring at the onset of coke formation during the co-processing of coals with petroleum residua. The specific objectives include examination of chemical components, or groups of components, in coals and petroleum feedstocks to quantify and rank the effects of these components in retarding or enhancement of coke formation. The work involves bench scale reactions in microautoclaves, supplemented by … more
Date: November 1, 1991
Creator: Schobert, H.H. & Tomic, J.
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.
Partner: UNT Libraries Government Documents Department
open access

Coal liquefaction process streams characterization and evaluation

Description: Consol R D is conducting a three-year program to characterize process and product streams from direct coal liquefaction process development projects. The program objectives are two-field: (1) to obtain and provide appropriate samples of coal liquids for the evaluation of analytical methodology, and (2) to support ongoing DOE-sponsored coal liquefaction process development efforts. The two broad objectives have considerable overlap and together serve to provide a bridge between process developme… more
Date: November 1, 1991
Creator: Winschel, R. A.; Brandes, S. D.; Robbins, G. A. & Burke, F. P.
Partner: UNT Libraries Government Documents Department
open access

Development of clean coal and clean soil technologies using advanced agglomeration technologies

Description: The specific objectives of the bituminous coal program were to explore and evaluate the application of advanced agglomeration technology for: (1)desulphurization of bituminous coals to sulphur content acceptable within the current EPA SO{sub 2} emission guidelines; (2) deashing of bituminous coals to ash content of less than 10 percent; and (3)increasing the calorific value of bituminous coals to above 13,000 Btu/lb. (VC)
Date: April 1, 1990
Creator: Ignasiak, B.; Pawlak, W.; Szymocha, K. & Marr, J.
Partner: UNT Libraries Government Documents Department
open access

Prototype Commercial Coal/Oil Co-Processing Plant Project

Description: With the successful demonstration of the Co-Processing Process for simultaneously converting and upgrading Ohio coal and Cold Lake atmospheric resid, a hydrotreating program was subcontracted out to Sun Refining and Marketing by Ohio Clean Fuels to define operating conditions that will produce a distillate product meeting 0.05 wt % sulfur and a naphtha product with 1 wppm nitrogen maximum. Two hydrotreating runs were carried out: one on a 350/650{degree}F distillate blend and other on the C5/35… more
Date: March 1, 1990
Partner: UNT Libraries Government Documents Department
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