University of Wyoming

Other

Ash Management Engineering, Inc.

Alan E Bland

Song Jin

Patrick Richards

Jesse D Newcomer

Jeffrey M Morris

Paul H Fallgren

Kumar Muthusami Sellakumar

Patricia Colberg

Karen E Wawrousek

Maohong Fan

Herbert S Price

Armistead G Russell

Terry H Brown

E Ray Lichty

Richard A Schumann

Allen R Rowen

Bo-Tao Zhang

Tengyan Zhang

Richard K Cox

Embodiments of the present invention may provide encapsulation of waste () materials in a first (), double (), triple (), or even quadruple () encapsulation. Encapsulation may include waste (), ash (), Portland cement (), water, chemicals, or the like. Agglomerates formed perhaps with high energy mixing may be processed, cured, or the like.

Methods and systems for multi-stage encapsulation of wastes and production thereof into aggregate products

Methods and systems for the biological conversion of pretreated or solubilized coal or waste coal into biofuels. Coal () may be pretreated perhaps in a pretreatment reactor (). Pretreated coal or even solubilized coal may be introduced into a processing reactor such as a bioreactor () containing a plurality of microorganisms () such as oleaginous microorganisms which can convert at least some of the pretreated or solubilized coal into lipids () or biomass (), which then may be used directly or as a precursor for various products such as biofuels, feedstock, or the like.

Methods and systems for biological coal-to-biofuels and bioproducts

Methods and systems to achieve clean fuel processing systems in which carbon dioxide emissions () from sources () may be processed in at least one processing reactor () containing a plurality of chemoautotrophic bacteria () which can convert the carbon dioxide emissions into biomass () which may then be used for various products () such as biofuels, fertilizer, feedstock, or the like. Sulfate reducing bacteria () may be used to supply sulfur containing compounds to the chemoautotrophic bacteria ().

Systems and methods for biological conversion of carbon dioxide pollutants into useful products

Methods and systems to achieve clean fuel processing systems in which carbon dioxide emissions () from sources () may be processed in at least one processing reactor () containing a plurality of chemoautotrophic bacteria () which can convert the carbon dioxide emissions into biomass () which may then be used for various products () such as biofuels, fertilizer, feedstock, or the like. Bacteria that reduce oxidized nitrogenous species () may be used to supply reduced nitrogenous compounds to the chemoautotrophic bacteria ().

Conversion of carbon dioxide utilizing chemoautotrophic microorganisms systems and methods

Biological reduction of carbon dioxide pollutants systems and methods

Efficient coal pre-processing systems () integrated with gasification, oxy-combustion, and power plant systems include a drying chamber (), a volatile metal removal chamber (), recirculated gases, including recycled carbon dioxide (), nitrogen (), and gaseous exhaust () for increasing the efficiencies and lowering emissions in various coal processing systems.

Efficient volatile metal removal from low rank coal in gasification, combustion, and processing systems and methods

A sorbent for COwherein KCOis supported on FeOOH.

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Efficient low rank coal gasification, combustion, and processing systems and methods

Systems for enhanced in-situ or perhaps even ex-situ biogenic methane production from hydrocarbon-bearing formations () including coal seam, oil shale, coal, coal derivates and the like are presented in embodiments such as but not limited to: increasing and perhaps even selection of microbial populations (), amending CBM water and other microbe-containing media, diminishing sulfate reduction competition, enhancing organic matter concentrations and generation of biogenic methane (), universally treating hydrocarbon-bearing formations, and introducing amendments () to hydrocarbon-bearing formations.

Formation pretreatment with biogenic methane production enhancement systems

Biogenic methane production enhancement systems

Generally, systems for air and water purification using unpowered charged sorbent mediums () which may include layered double hydroxide (LDH) () compositions, lignin (), and methods of sorbing inorganic or organic material(s) onto such mediums, including anionic contaminants (), cationic contaminants (), non-ionic organic contaminants (), and even biological agents () such as bacteria or viruses present in liquids or gases.

Bioagent air filtration systems

This invention discloses a system for cold bond processing of combustion ash which enhances various characteristics of the resulting cured consolidated combustion ash materials. Specifically, the invention relates to processing techniques which enhances both density and strength of the of the consolidated combustion ash materials. The invention also relates to processing techniques which control various chemical reactions which assure that certain types of minerals are formed in the proper amounts which results in a cured consolidated combustion ash material which has greater dimensional stability and enhanced resistance to degradation. Embodiments for both normal weight and light weight combustion ash aggregates are disclosed which meet various ASTM and AASHTO specifications.

Stable consolidated combustion ash material

Method of producing a coal combustion ash composition

System for producing manufactured materials from coal combustion ash

Ash from a fluidized bed combustor in which limestone particles are suspended in the presence of carbonaceous fuel being burned is pelletized. Lime-containing bed ash ('FBCR') is produced in the combustor, and fly ash ('FBC fly ash') is generated as a by-product of the combustion process. FBCR and FBC fly ash generated during the combustion process are obtained. Water is added to the FBCR so as to convert a substantial portion of the lime to hydrated lime. Water is added to the FBC fly ash and pellets are formed from the FBC fly ash. The FBC fly ash pellets are coated with the hydrated FBCR. The coated FBC fly ash pellets are cured in a curing silo for a minimum of 6-10 hours, preferably by nesting them in a bed of hydrated FBCR. The cured pellets then are separated from the bed of hydrated FBCR. New pellets are formed by mixing the separated, hydrated FBCR with FBC fly ash and water. The pellets formed with the separated, hydrated FBCR contain about 0-80% by weight of FBCR and about 100-20% by weight of FBC fly ash. Agglomeration of the pellets in the curing silo is prevented by coating the pellets with hydrated FBCR. Agglomeration also can be prevented by spraying newly formed pellets with certain chemicals, by drying their surfaces, or by coating the pellets with inert materials other than hydrated FBCR.

Growing community of inventors

Laramie, WY, United States of America

Alan E Bland