Characterization of the organic sulfur in macerals and chars

Cover title.Principal investigator: Richard D. Harvey.Co-investigator: Ilham Demir.Project monitor: Daniel D. Banerjee.Final technical report: September 1, 1989 through August 31, 1990.Includes bibliographical references (p. 24)

Mineralogical and chemical composition of inorganic matter from marketed Illinois coals

Includes bibliographical references (p. 26-28)

Delineation of the coalbed methane resources of Illinois

Illinois Department of Commerce and Economic OpportunityOpe

Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

Formation water chemistry and modeling of fluid-rock interaction for improved oil recovery in Aux Vases and Cypress Formations, Illinois basin

"This report was prepared by the Illinois State Geological Survey (ISGS) for a project sponsored by the State of Illinois and the U.S. Department of Energy (USDOE)"--T.p. verso.Includes bibliographical references (p. 51-56)

Electrokinetic and Chemical Aspects of Transport of Chloride Brines Through Compacted Smectite Layers at Elevated Pressures (Electroosmosis, Streaming, Conductivity)

216 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1984.Solutions of NaCl and NaCl-CaCl were forced through clay plugs made by compacting the 0.2 to 2.0 micron size fraction of Cheto montmorillonite. The concentration of NaCl solution was either 1.10 m or 1.087 m, and that of NaCl-CaCl(,2) solution was 0.92 m in NaCl and 0.075 m in CaCl(,2). Clay plug thicknesses ranged from 0.32 to 0.5 centimeters. The clay plugs were prepared differently in order to obtain different fabrics. Six experiments were carried out. It took five to ten weeks to achieve constancy of effluent chemical composition and of streaming potential. Confining pressure (CP) in these room temperature experiments was 5000 pounds per square inch (psi), differential hydraulic pressure (DHP) across the clay was 2000 psi, and mean hydraulic pressure (MHP) was 2300 psi. These values of CP and MHP are approximate for a depth of 5000 feet in sedimentary basins.Hydraulic flow rate, electrical conductance, streaming potential, electroosmotic flow rate and brine chemical composition were measured periodically until steady state. At steady state, stable oxygen isotopic compositions of both input and effluent reservoirs were determined for three runs and approximate osmotic flow rates were determined for two runs.The presence of Ca('2+) in the brine resulted in lower hydraulic conductivity and streaming potential but slightly higher electrical conductivity. The electroviscous effect was shown to cause a significant reduction in the flow rate. The experimental results conform to the predictions of nonequilibrium thermodynamics, for both Na-Cl and Na-Ca-Cl systems, under these simulated subsurface conditions. It appears from the data produced that osmotic and electroosmotic effects may be responsible in driving large amount of cross-formational subsurface fluid flow. Salt filtration efficiencies (SFE) from 27 to 48% and oxygen isotopic enrichments of -0.25 to -0.63% (SMOW) were measured. SFE increased with decreasing hydraulic flow rate. In the Na-Ca-Cl system, Na('+) was preferentially transported through the clay relative to Ca('2+).U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD

Characterization of available (marketed) coals from Illinois mines

Project monitor: Dr. Ken K. Ho.Final report (revised) to the Coal Research Board, Illinois Department of Energy and Natural Resources through the Illinois Clean Coal Institute.Includes bibliographical references (leaves 12-13)

Resource assessment and production testing for coalbed methane in Illinois

Illinois Department of Commerce and Economic Opportunity DCEO grant: #03-48336 COALOpe

Washability of trace elements in product (marketed) coals from Illinois mines

Project manager : Dr. Ken K. Ho.Final report (revised) to the Coal Research Board, Illinois Department of Energy and Natural Resources through the Illinois Clean Coal Institute.Includes bibliographical references (p. 13-16)