Abstract:
A method and process arrangement for producing hydrocarbons from polymer-based waste in which the polymer-based waste is gasified with steam at low temperature in a gasifier for forming a product mixture, and the temperature is 640-750° C., and the product mixture is supplied from the gasifier to a recovery unit of the hydrocarbons for separating at least one hydrocarbon fraction.
Abstract:
An integrated biomass conversion system and a method of starting and shutting down the system are disclosed. The integrated biomass conversion system comprises a syngas generator, such as a gasifier, a cleanup engine and a syngas utilization system, which could be a power producing engine or a chemical reactor for chemical or fuel synthesis. The cleanup engine operates rich and at high temperatures so that the tars exhausted by the syngas generators are destroyed and not allowed to foul other components. An orderly sequence to start and shut down the integrated biomass conversion system is disclosed.
Abstract:
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.
Abstract:
A cogeneration process with gasification of organic material, including the steps of: loading only organic material into a collection tank; supplying at least part of the organic material to a gasification reactor; producing Syngas in the gasification reactor through gasification of at least part di the organic material supplied to the gasification reactor; filtering the Syngas; supplying the filtered Syngas to at least one internal combustion engine; generating electrical energy by an electric generator connected to the at least one internal combustion engine.
Abstract:
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.
Abstract:
A system includes a slurry inlet of the gasifier that receives a feedstock slurry and a gasification section of the gasifier that gasifies the feedstock slurry to produce syngas. The system includes a quench chamber to cool the syngas produced in the gasification section using a liquid feed to produce a quench blow down and quenched syngas. The quench blow down has solids produced as a by-product from gasification. The system includes a quench blowdown outlet which discharges the quench blow down and a slag sump liquid such that the solids concentration of the quench blowdown is reduced. The system includes a syngas outlet which discharges the syngas and a syngas scrubber fluidly coupled to the syngas outlet and to the quench chamber. The syngas scrubber includes a syngas inlet, a scrubbed syngas outlet, and a scrubber blow down outlet fluidly coupled to a fluid inlet of the gasifier.
Abstract:
In a first processing chamber, a feedstock may be combined with plasma from, for example, three plasma torches to form a first fluid mixture. Each torch may have a working gas including water vapor, oxygen, and carbon dioxide. The first fluid mixture may be cooled and may contact a first heat exchange device. The output fluid from the first heat exchange device may be separated into one or more components. A syngas may be derived from the one or more components and have a ratio of carbon monoxide to hydrogen of about 1:2. The syngas may be transferred to a catalyst bed to be converted into one or more fluid fuels.
Abstract:
A method is described for integrating a plurality of micro-gasifiers comprising gasifiers, filters, and engine sets or turbine gensets or combined cycle gensets by linking them via a common bus wherein air flow and engine fuel flow is regulated by valves controlling gas flow between the bus and engine genset or turbine genset or combined cycle genset.
Abstract:
A system and method of producing syngas from a solid waste stream is provided. The system includes a low tar gasification generator that gasifies the solid waste stream to produce a first gas stream. A process module cools the first gas stream and removes contaminants, such as metals, sulfur and carbon dioxide from the first gas stream to produce a second gas stream having hydrogen. The second gas stream is received by a power module that generates electrical power from the second gas stream. The process module may include one or more heat exchangers.
Abstract:
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.