The state of the art in methane pyrolysis does not yet provide a definitive answer as to whether concept an elementary reaction is universally applicable apparently simple process dissociation. Similarly, literature currently lacks comprehensive and unambiguous description and, particular, single model that would well represent its course at both micro macro scales. Given wide range conditions under which this can occur—whether thermal or thermo-catalytic, solid fluidized bed reactors—it...

This research discusses the results of experiments performed on a large-scale gasification installation to determine influence total system pressure and partial CO2 efficiency conversion quality produced gas. The three tested feedstocks were bark, lignin blend bark wheat straw, while softwood pellet (SWP) was used as reference fuel. A mixture O2/CO2/H2O agent. tests devised validate previously proposed process parameters, verify whether similar ash agglomeration problems would occur compare...

Abstract An autothermal fluidized bed reactor was used to research the influence of pressure (0–2 bar g ) on gasification process different types biomasses. The tested feedstocks were bark and lignin while softwood pellet as a reference fuel. A mixture O 2 /CO /H agent. impact application CO yield H in product gas determined. Resulting characterized by high content which makes its use for applications based chemical synthesis very difficult without extensive upgrading or supply from external...

This article compares chemical coagulation with electrocoagulation, two popular methods for the primary treatment of wastewater generated in process Underground Coal Gasification (UCG). The aim was to determine which method is more effective removal cyanide and sulphide ions, metals metalloids, as well organic compounds. In both cases, experiments were conducted batch 1 dm³ reactors, coagulation/flocculation carried out using iron ions. Four types coagulants tested during study: FeCl₂,...

This article compares chemical coagulation with electrocoagulation, two popular methods for the primary treatment of wastewater generated in process underground coal gasification (UCG). The aim was to determine which method is more effective removal cyanide and sulphide ions, metals metalloids, as well organic compounds. In both cases, experiments were conducted batch 1 dm3 reactors using iron ions. Four types coagulants tested during study: FeCl2, FeSO4, Fe2(SO4)3, FeCl3. electrocoagulation...

In this research, the idea of multicomponent, one-vessel cleaning syngas through simultaneous dedusting and adsorption is described. Data presented were obtained with use a pilot-scale 60 kWth fixed-bed GazEla reactor, coupled dry gas unit where mineral sorbents are injected into raw at 500–650 °C, before ceramic filters. The research primarily presents results application four calcined sorbents, i.e., chalk (CaO), dolomite (MgO–CaO), halloysite (AlO–MgO–FeO), kaolinite (AlO–MgO) for...

This paper presents the results of solid recovered fuel (SRF) gasification research in a GazEla fixed bed reactor on pilot installation with 60 kW th output.Proprietary construction gasifier has an innovative character and was developed by Institute for Chemical Processing Coal, IChPW (Poland).This aims to present acquired during preliminary tests biomass SRF mixtures.The this been presented set comparison other designs used authors conducting similar around world.Detailed process analysis...

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Based on literature data, an analysis was conducted the thermodynamic and kinetic dependencies of thermal decomposition methane. Course this process analysed for both thermal-catalytic conditions. The elementary reaction, i.e. synthesis methane from its elements, including reversibility, used as basis considerations model. conversion degree adopted parameter (kinetic variable) since measure is essential determining amount carbon deposit formed thus closing mass balance process. Several...

The study presents the results of research on using fixed-bed, activated carbon (AC) adsorbers in cleaning heavily tar-laden producer gas from gasification biomass. efficiency removal organic compounds as well remaining adsorption capacity bed were determined a spectrum commonly applied diagnostic methods, including qualitative and quantitative analyses adsorbed changes pore volume material (IN, MN). authors compare these lab quantifications with simple technique which is based analysis...

STRESZCZENIEW niniejszym artykule przedstawiono wyniki testów wytrzymałości mechanicznej brykietów na bazie mułu węglowego oraz flotokoncentratu wraz z dodatkiem 3% wag

Abstract The article presents a topic related to generation of heat and power in small medium size coal units which are able comply with the emission benchmark 550 g CO 2 /kWh through utilization biomass. concept for biomass cogasification installation is based on GazEla reactor, has been developed by Institute Chemical Processing Coal. Authors also present discussion issues technological scheme gasification unit integrated selected district heating system. system set up hot water electrical...