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Closed-loop system for growth of aquatic biomass and gasification thereof
Processes, systems, and methods for producing combustible gas from wet biomass are provided. In one aspect, for example, a process for generating a combustible gas from a wet biomass in a closed system is provided. Such a process may include growing a wet biomass in a growth chamber, moving at least a portion of the wet biomass to a reactor, heating the portion of the wet biomass under high pressure in the reactor to gasify the wet biomass into a total gas component, separating the gasified component into a liquid component, a non-combustible gas component, and a combustible gas component, and introducing the liquid component and non-combustible gas component containing carbon dioxide into the growth chamber to stimulate new wet biomass growth.
Materials Issues In Biomass Gasification
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Metal ferrite oxygen carriers for gasification of solid carbonaceous fuel
The disclosure provides a metal ferrite oxygen carrier for the chemical looping combustion of solid carbonaceous fuels, such as coal, coke, coal and biomass char, and the like. The metal ferrite oxygen carrier comprises MFe.sub.xO.sub.y, where MFe.sub.xO.sub.y is a chemical composition with 1.5.ltoreq.x.ltoreq.2.5 and 3.5.ltoreq.y.ltoreq.4.5 and M is one of Ca, Ba, and combinations thereof. For example, MFe.sub.xO.sub.y may be one of CaFe.sub.2O.sub.4, BaFe.sub.2O.sub.4, MgFe.sub.2O.sub.4. SrFe.sub.2O.sub.4 and combinations thereof. Mixing of the metal ferrite oxygen carrier and the solid carbonaceous fuel generates a product stream comprising at least 50 vol. % CO and H.sub.2. The MFe.sub.xO.sub.y may be supported on an inert support. In an embodiment, the MFe.sub.xO.sub.y comprises at least 30 wt. % of the metal ferrite oxygen carrier the inert support when present comprises from about 5 wt. % to about 60 wt. % of the metal ferrite oxygen carrier.
Techno-economic Analysis of an Integrated Gasification Direct-Fired Supercritical CO2 Power Cycle
This presentation describes recent systems studies of a coal-fueled, oxy-fired direct supercritical CO2 (sCO2) power cycle, which inherently captures carbon for storage (CCS). In this plant, coal is gasified in an entrained flow gasifier, the syngas is cleaned and burned with oxygen and diluent sCO2 in the cycle’s oxy-combustor. This is followed by turbine expansion and recuperation of thermal energy in the exhaust. After water is condensed from the working fluid, some of the CO2 is exhausted for CCS, and the balance is compressed and heated in the recuperator for return to the combustor. The conceptual design and system model for the plant are discussed, including thermal integration between the sCO2 cycle and the gasifier, and optimization of the overall plant configuration and operating conditions. The capital cost, operating expenses, and cost of electricity (COE) are also estimated. Results show improved efficiency and COE relative to IGCC plants with CCS.
Investigations of Fouling and Slagging in High Temperature Gasification and Use of that Information to Minimize Those Tendencies
Presented by NETL at 42nd International Technical Conference on Clean Energy, 06/17
Additive Manufacturing by NETL for Rapidly Prototyping Modular Gasification Systems
Presented by NETL at NE Ohio Additive Manufacturing Cluster, 07/18
Chemical looping combustion and gasification technologies for production of heat and valuable commodities
Presented by NETL at 2nd International Conference on Advances in Chemical Engineering and Technology, 11/17
Microwave-Assisted Gasification of Low Rank Sub-Bituminous Coal
Presented by NETL at 32nd International Pittsburgh Coal Conference, 10/15
Development of coal chemical looping combustion and gasification: a brief review
Presented by NETL at 252rd ACS National Meeting & Exposition, 08/16
Conversion of waste from gasification facilities, refineries, and steelmaking plants to H2 and/or CO
Presented by NETL at The 44th International Technical Conference, 06/19
Assessment of microwave CO2 gasification for different rank coals
Presented by LRST at the International Pittsburgh Coal Conference, September 8-11, 2020, 9/9
Comparison of Microwave and Conventional Heating for CO2 Gasification of Different Rank Coals
Presented by NETL at IMPI 54th Annual Microwave Powers Virtual Symposium, 06/20
Experimental Study and Numerical Simulation of the Biomass Pyrolysis and Gasification with MFiX
Presented by NETL at 2019 AIChe, 11/19
Advanced Reaction Systems (ARS) FWP1022405 Task 4: Advanced Manufacturing and Materials Technologies for Gasification
2021 Crosscutting Research and Advanced Energy Systems Project Review Meeting, Virtual, May 4-5, 2021
In-Operando Investigations of Refractory Materials Interacting with Ash/Slag from Mixed Feedstock Gasification
TMS 2021 Annual Meeting & Exhibition, Virtual, March 15-18, 2021
Effect of Gasifying Agent During Microwave-Assisted Coal Gasification
38th Annual International Pittsburgh Coal Conference, Virtual, September 20-23, 2021