EPA/600/A-93/187 Evaluation of Carbon Black Slurries as Clean Burning Fuels by Ravi K. Srivastava* Acurex Environmental Corporation 4915 Prospectus Dr. Durham, NC 27713 William P. Linak Combustion Research Branch, MD-65 Air and Energy Engineering Research Laboratory U.S. Environmental Protection Agency Research Triangle Park, NC 27711 April 14,1993 Prepared for presentation at the 86th Annual
More coal processing is done in foreign coal-producing countries because of their requirements for a smokeless fuel, their need to make a satisfactory metallurgical coke from inferior quality coals, and their general lack of indigenous oil or gas from which to produce chemicals or other carbon-based products.
Abstract. This is the third of three volumes describing a multi-phase, coal-water slurry (CWS) test program. This volume summarizes the results of tests of a single, full-scale 15-million Btu/hr burner to be used in a multi-burner industrial boiler demonstration of CWS at a DuPont plant in Memphis, Tennessee.
choices for combustion fuel: butane, coal, natural gas, light oil, heavy oil, propane, and waste fuel. Propane is a catchall term for pure propane, pure butane, mixtures of propane and butane, propylene, and butylene. Direct-firing burners directly
Fig. 3 shows the configuration of a directly heated oxy-fuel combustion sCO 2 cycle proposed by US DOE’s NETL .Fuel is burned in relatively pure and near stoichiometric oxygen in the combustor, and the resulting stream that contains mainly CO 2 and H 2 O is used to drive the turbine.
dramatic decline in coal as a boiler fuel in industry and in utilities because of the relatively lower cost of oil and the concern for environmental quality associated with coal combustion. The decade of the seventies began with a major change in the relative economics of coal, oil, and natural gas. Oil became expensive and occasionally scarce;
Mar 17, 2020 · The advantages of using IGCC technology can include greater fuel flexibility (e.g., capability to use a wider variety of coal ranks), potential improved control of PM, SO2 emissions, and other air pollutants, with the need for fewer post- combustion control devices (e.g., almost all of the sulfur and ash in the coal can be removed once the fuel
While stack draft may be an important measurement, fuel oil and gas fired power burners require draft control over the fire to maintain a proper and controlled intake of combustion air. Comparing stack and overfire O 2 can verify that leakage between boiler sections, access door, etc is minimal and the combustion test results are accurate.
Aug 09, 2018 · Combustion is a rapid chemical reaction between fuel and oxygen. When combustible elements of fuel combine with O2, heat energy comes out. During combustion combustible elements like Carbon, Sulfur, Hydrogen etc combine with oxygen and produce respective oxides. The source of oxygen in fuel combustion is air. By volume there
Superclean coal-water slurry combustion testing in an oil-fired boiler The SCCWS storage and handling system was ori_nally designed such that a portable double-diaphragm pump and hoses were used to unload slurry from a tanker into the 16,000- gallon storage tank.
Propane Propane is a heavy gaseous fossil fuel processed from crude petroleum and natural gas.6 Residual oil Crude oil and fuel oil Nos. 1 and 2 that have nitrogen content greater than 0.05 wt %, and all fuel oil Nos. 4, 5, and 6 as defined in ASTM D 396 (Refs. 2 and 5).
Cost comparison formulas for heating fuels like Natural Gas, Propane LP Gas, Fuel Oil and Electricity. Hot Water Boiler Circulation Rates . Boiler power and water flow - Imperial and SI-units . Intermittent Combustion and Boiler Efficiency . The efficiency is reduced by intermittent boiler operation . Liquefied Natural Gas - LNG . LNG or
• Burns like Natural gas Wobbe index 52 (Natural gas 54) • Handles like LPG Boiling point -25°C (Propane -42) Vapor pressure 0.53MPa (Propane 0.91) • Outstanding diesel alternative fuel Cetane number 55-60 (Gas oil 40-55) • Today,150,000t/y as aerosol propellant, plus 300,000 t/y for emerging fuel market Methane DME Propane
A commercial-scale coal-water slurry (CWS) burner was developed and test fired. This atomizer and burner system was developed in three steps: (1) Atomizer development and optimization using optical measurement techniques; (2) Burner air register development using cold flow modeling, and (3) Full scale (80 MBtu/h) combustion testing of the atomizer and air register.
(MMBtu) of natural gas while producing 45,000 lb/hour of 150-psig steam. Stack gas measurements indicate an excess air level of 44.9% with a flue gas minus combustion air temperature of 400°F. From the table, the boiler combustion efficiency is 78.2% (E1). Tuning the boiler reduces the excess air to 9.5% with a flue gas minus combustion
As one of the world's largest and most diverse analytical testing services providers, ALS has the technical expertise capacity to handle your project. ALS offers laboratory testing services for Life Sciences (Environmental testing, Food testing, Electronics testing, Animal Health testing, Consumer Products testing), Minerals (Geochemistry testing, Metallurgy testing, Mine Site testing
Automation and control of a 800 MW combined cycle power plant plant was controlled by an operator facing coal-fired plant this will embrace the coal mills and fuel feed systems, the combustion chamber and boiler, the steam turbine and.
operations, such as oil-gas production, refinery, chemical plant, coal industry and landfills. Wastes or losses to the flare include process gases, fuel gas, steam, nitrogen and natural gas. Flaring systems can be installed on many places such as onshore and offshore platforms
In a cyclone furnace, where crushed coal is used as a fuel, 70 to 80 percent of the ash is retained as boiler slag and only 20 to 30 percent leaves the furnace as dry ash in the flue gas. (2) A general flow diagram of fly ash production in a dry-bottom coal-fired utility boiler operation is presented in Figure 1.
usually adequate for firing natural gas but sometimes need to be modified or replaced entirely . 2.2 . Estimated Boiler Performance and Expected Plant Performance. Converting a boiler to natural gas typically decreases boiler efficiency because of the large quantity of hydrogen in natural gas. During combustion, the hydrogen is converted to water.
Fossil Fuel Combustion and Forest Ecosystem Health William H. Smith Chapter 20 , 254-266 DOI: 10.1021/bk-1986-0319.ch020 Publication Date (Print) : September 18, 1986
The Process Intensification for Syngas key technology area addresses control of chemical reactions in increasingly modular and intrinsically efficient reactors, allowing for smaller reactors and streamlined processes, with a focus on gasification of coal into syngas, syngas cleanup, and syngas conversion.
Listings in Mixers, slurry and Boilers, coal fired. Sponsor Area. Home Listings Advertise
EP0037832B1 EP80902330A EP80902330A EP0037832B1 EP 0037832 B1 EP0037832 B1 EP 0037832B1 EP 80902330 A EP80902330 A EP 80902330A EP 80902330 A EP80902330 A EP
The E-GAS™ process features an oxygen-blown, continuous-slagging, two-stage, entrained-flow gasifier, which uses natural gas for start-up. Coal or petroleum coke is milled with water in a rod-mill to form slurry. The slurry is combined with oxygen in mixer nozzles and injected into the first stage of the gasifier, which operates at
Coal water slurry fuel (CWSF) is considered a feasible alternative to the heavy fuel oil currently used as a boiler fuel. At the core of CWSF technology is the burner, which is a hybrid between a pulverized coal burner and a No. 6 fuel oil burner. Private enterprise has invested heavily in burner development with
Entropy tested the exhaust gases from the Unit 1 coal-fired boiler. The furnace burns bituminous coal. Gases from the combustion furnace pass through two electrostatic precipitators (ESPs) to control particulate. Gases exiting the ESPs pass through a flue gas desulfurization unit (FGD), to remove SO2, and are then exhausted through a stack.
The Pennsylvania State University is conducting a coal-water slurry fuel (CWSF) program with the US Department of Energy (DOE) and the Commonwealth of Pennsylvania to determine the viability of firing CWSF in an industrial boiler designed for heavy fuel oil. Penn State and DOE have entered into a cooperative agreement to determine if CWSFs prepared from cleaned coal (containing approximately 3
Progress on the Investigation of Coal-Water-Slurry Fuel Combustion in a Medium-Speed Diesel Engine: Part 3—Accumulator Injector Performance J. Eng. Gas Turbines Power (July, 1989) Combustion of Coal-Water Slurry in a Two-Cycle Diesel Engine: Effects of Fuel Amount and Timing
use heavy fuels in gas turbines covering a wide range that includes crude oil, fuel oil, residual oil, tar sands, shale oil and coal water slurry. Attempts in this direction have been plagued by problems of corrosion, inefficiency, and pollution . The corrosion problem is a major obstacle in the use of heavy fuels in gas turbines. Hence
Coal gasification is the process of producing syngas—a mixture consisting primarily of carbon monoxide (CO), hydrogen (H 2), carbon dioxide (CO 2), natural gas (CH 4), and water vapour (H 2 O)—from coal and water, air and/or oxygen. Historically, coal was gasified to produce coal gas, also known as "town gas". Coal gas is combustible and
Jan 19, 2016 · Due to the limited storage of petroleum and natural gas and relatively abundant coal coke briquettes: towards reducing emissions of during pulverized coal combustion. Energ Fuel 17, 1367
Natural liquid fuel Crude oil Man-made liquid fuels Gasoline ( petrol ), diesel oil, alcohols, kerosene and other organic liquids Natural gaseous fuel. Natural gas Synthetic gaseous fuel Coke oven gas, producer gas, blast-furnace gas, water gas and refinery gas ANALYSIS OF COAL SAMPLES: The boilers are designed based on (1). Proximate analysis
Numerical Simulation of Coal Oil Water Slurry Gasification Process in New-Type Coal Water Slurry Gasifier 1 November 2012 | Applied Mechanics and Materials, Vol. 229-231 Numerical simulation of bituminous coal combustion in a fullscale tiny-oil ignition burner: Influence of excess air ratio
Nekoosa Paper Mill from coal to natural gas firing. Units 1 & 2 at the facility are wall-fired steam boilers rated for 110,000 pph main steam flow each. Unit 10 was originally a stoker fired coal and bark boiler rated for 225,000 pph main steam flow. In 2014, all three boilers were converted to fire natural gas only.
Lignin recovery from black liquor has been proposed to de-bottleneck recovery boiler limited Kraft mills. The precipitated lignin would be used as a fuel in the lime kiln, replacing the external fuel, such as natural gas or fuel oil, presently used. In this work lignin-oil-water mixtures were investigated as a fuel. The rheology of the lignin-oil-water mixtures was studied; and a pilot scale
----- EPA-600/7-86-012a April 1986 ENVIRONMENTAL ASSESSMENT OF A COAL/WATER SLURRY FIRED INDUSTRIAL BOILER Volume I Technical Results By D. Van Buren and L. R. Waterland Acurex Corporation Energy & Environmental Division 555 Clyde Avenue P.O. Box 7555 Mountain View, California 94039 EPA Contract No. 68-02-3188 EPA Project Officer: J. A. McSorley Air and Energy Engineering Research Laboratory
The coal water slurry will also add fuel diversity to the generation fleet which is currently weighted at around 70% natural gas fuel. Coal water slurry may become a key technology for Thailand to help achieve the recently announced goal of a 40% fuel mix for coal set by the Government policy (before about 20%).
The U.S. Army has been tasked to reduce its dependence on and consumption of petroleum fuels. Coal water slurry fuel (CWSF) is considered a feasible alternative to the heavy fuel oil currently used as a boiler fuel. At the core of CWSF technology is the burner, which is a hybrid between a pulverized coal burner and a No. 6 fuel oil burner.
Coal-liquid mixtures or slurries—primarily coal-oil and coal-water fuels—are another commercial technology that allows coal to be substituted for liquid fuels in combustion applications. R&D in this area peaked during the late 1970s and early 1980s when oil prices were high and coal-based substitutes were attractive.