Patent classifications
C10L2290/04
APPARATUS FOR TREATING WASTE MATERIAL AND A PRODUCT GAS
The invention relates to an apparatus for treating waste material including organic components and radioactive agents. In the apparatus the waste material including organic components and radioactive agents are gasified at temperature between 600-950° C. in a fluidized bed reactor to form a gaseous material. The gaseous material is than cooled in a water quenching device so that temperature is between 300-500° C. after the cooling. The solid fraction including radioactive agents is removed from the gaseous material in a in at least one filtration device. A gas scrubbing device then removes sulphur by scrubbing the treated gaseous material after the filtration in order to form a treated gaseous material.
Biomass to transportation fuels using a Fischer-Tropsch process
An integrated plant to generate chemical grade syngas from a steam biomass reforming in a multiple stage bio reforming reactor for use with either a high temperature or low temperature Fischer-Tropsch synthesis process to produce fuel from biomass is discussed. The first stage has a reactor to cause a chemical devolatilization of a biomass feedstock from the biomass feedstock supply lines into its constituent gases of CO, H2, CO2, CH4, tars, chars, and other components into a raw syngas mixture. A second stage performs further reforming of the raw syngas from the first stage into the chemical grade syngas by further applying heat and pressure to chemically crack at least the tars, reform the CH4, or a combination of both, into their corresponding syngas molecules. The second stage feeds the chemical grade syngas derived from the biomass feedstock to the downstream Fischer-Tropsch train to produce the fuel from the biomass. One or more recycle loops supply tail gas or FT product back into the plant.
METHOD FOR PRODUCING CHARCOAL
A process for the production of charcoal comprising the steps of: a) feeding biomass, in particular wood chips, into a pyrolysis unit, in which the wood chips are pyrolyzed into a full stream comprising solid, liquid and gaseous material, b) feeding the full stream and a gasifying agent into an oxidation unit, wherein the full stream is oxidized at least partially and transported pneumatically, c) feeding the partially oxidized full stream from the oxidation unit into a reduction unit arranged essentially vertically, the material outlet of the oxidation unit being connected to the reduction unit, with the cross-section of the reduction unit increasing as the distance from the material outlet of the oxidation unit increases, the flow rate of the full stream in the reduction unit being adapted to the material of the full stream and to the shape of the flow cross-section of the reduction unit in such a way that a stable fixed bed kept in suspension is formed in the reduction unit, d) removing the raw charcoal from the reduction unit via an overflow, e) separating gaseous components in a hot gas filter and collecting the charcoal, and f) quenching the collected charcoal with water.
COAL POWDER PRETREATMENT METHOD AND COAL POWDER GASIFICATION METHOD
Disclosed are a pulverized coal preprocessing method and a pulverized coal gasifying method. The pulverized coal preprocessing method comprises the following steps: (1) performing pore broadening on pulverized coal to obtain preprocessed pulverized coal; (2) loading alkali metal ions into the preprocessed pulverized coal under an ion exchange condition to obtain alkali metal loaded pulverized coal. The method further comprises loading a chrome complex into the alkali metal loaded pulverized coal obtained in described step (2). In gasification, the pulverized coal loaded with alkali metal potassium and chrome catalysts obtained by the method has the advantages of high sulphur removal rate, high carbon conversion rate, short gasifying reaction time and high methane production.
Processes For Producing High Biogenic Concentration Fischer-Tropsch Liquids Derived From Municipal Solid Wastes (MSW) Feedstocks
Processes for producing high biogenic concentration Fischer-Tropsch liquids derived from the organic fraction of municipal solid wastes (MSW) feedstock that contains a relatively high concentration of biogenic carbon (derived from plants) and a relatively low concentration of non-biogenic carbon (derived from fossil sources) wherein the biogenic content of the Fischer-Tropsch liquids is the same as the biogenic content of the feedstock.
Production of products with favourable GHG emission reductions from cellulosic feedstocks
The present invention provides a process for producing one or more products for use as a transportation or heating fuel. In various embodiments the process comprises treating a cellulosic feedstock in one or more processing steps that release extractives from the feedstock. A solids-liquid separation is subsequently conducted on the process stream comprising the extractives and solids. An aqueous stream comprising one or more of the extractives may be fed to an anaerobic digester to produce crude biogas from which one or more impurities may optionally be removed. In various embodiments the process further comprises providing a solids stream to a thermal process. A product produced or derived from the thermal process may displace a product made from fossil fuel. One or more products obtained or derived from at least one of the foregoing process steps are provided for use as a transportation or heating fuel. In various embodiments the process enables advantaged fuel credit generation.
Method of producing liquid fuel from carbonaceous feedstock through gasification and recycling of downstream products
A feedstock delivery system transfers a carbonaceous material, such as municipal solid waste, into a product gas generation system. The feedstock delivery system includes a splitter for splitting bulk carbonaceous material into a plurality of carbonaceous material streams. Each stream is processed using a weighing system for gauging the quantity of carbonaceous material, a densification system for forming plugs of carbonaceous material, a de-densification system for breaking up the plugs of carbonaceous material, and a gas and carbonaceous material mixing system for forming a carbonaceous material and gas mixture. A pressure of the mixing gas is reduced prior to mixing with the carbonaceous material, and the carbonaceous material to gas weight ratio is monitored. A transport assembly conveys the carbonaceous material and gas mixture to a first reactor where at least the carbonaceous material within the mixture is subject to thermochemical reactions to form the product gas.
PROCESS
The present invention provides a process for obtaining solid recovered fuel and synthesis gas from a waste-based feedstock, comprising the steps of: I. converting the feedstock into a solid recovered fuel by means of a number of parameters pertaining to waste sorting, selection, comminution and/or screening; II. gasifying under suitable reaction conditions at least a portion of the solid recovered fuel to produce synthesis gas and by-product(s); and III. optionally cleaning at least a portion of the synthesis gas to produce clean synthesis gas and wastewater, wherein one or more of the solid recovered fuel, synthesis gas, and by-product(s) of the gasification are analysed during operation of the process, and wherein data from said analysis is used to control one or more parameters of step I) in order to influence reaction conditions in step II, and optionally step III).
ZERO EMISSION FUEL
A zero emission liquefied fuel having a composition including a first portion and a second portion, where the first portion is one of a fossil sourced Natural Gas, wherein the fossil sourced Natural Gas is one of (a) a Liquefied Natural Gas (LNG) or (b) a Compressed Natural Gas (CNG) sourced from fossil decomposition and the second portion is a Renewable Natural Gas (RNG). The Renewable Natural Gas (RNG) can be sourced from any renewable source, but is preferably sourced from dairy. The fuel composition can be formulated having a carbon intensity equal to zero.
Blends of low carbon and conventional fuels with improved performance characteristics
The present invention provides a blended fuel and methods for producing the blended fuel, wherein a low carbon fuel derived from a renewable resource such as biomass, is blended with a traditional, petroleum derived fuel. A blended fuel which includes greater than 10% by volume of low carbon fuel has an overall improved lifecycle greenhouse gas content of about 5% or more compared to the petroleum derived fuel. Also, blending of the low carbon fuel to the traditional, petroleum fuel improves various engine performance characteristics of the traditional fuel.