Abstract:
Provided is a treatment system whereby a wet organic waste can be effectively treated and CO 2 produced in the course of the treatment can be immobilized to thereby contribute to the reduction of CO 2 . The treatment system is characterized by including microbiologically fermenting a wet organic waste in a fermentation device, combusting in a combustion furnace a fermented material obtained from the fermentation device and, at the same time, supplying to the combustion furnace a fermentation gas produced by the microbiological fermentation treatment in the fermentation device, and then recovering and immobilizing CO 2 in a hot exhaust gas produced by the combustion treatment in the combustion furnace.
Abstract:
An energy conversion process that exports by-product CO2 at elevated pressure where a fuel gas feed stream is mixed with a reactant stream and additional CO2 is added to at least part of, the fuel gas feed stream, the reactant stream or both through desorption by contacting with a CO2-rich solvent stream in a first stage contactor to produce a mixed feed gas stream and a CO2-lean solvent stream; passing said mixed feed gas stream to a chemical conversion step, where further CO2 is produced; chilling at least part of the products of said chemical conversion step and thereby produce a CO2-lean gas stream; and passing at least part of said CO2-lean gas stream said to a second stage contactor where further CO2 is removed, by absorption, to produce a product gas stream and a solvent stream rich in CO2 from which said CO2-rich solvent stream is subsequently derived.
Abstract:
The present invention relates to a method for removing and recovering CO 2 from exhaust gas from a gas turbine based electric power and heat generation process (a main power process) by chemical absorption and desorption for deposition of CO 2 as convenient at the location. The exhaust gas from said main power process is cooled before being fed to a secondary gas turbine based power and heat generation process (a secondary power process) where said exhaust gas is compressed to elevated pressure and used as oxidant in a secondary gas turbine combustion chamber in said secondary power process. The resulting hot exhaust gas from said secondary process is further fed to a turbine connected to an electric power generator where the exhaust gas is depressurised to close to ambient pressure before entering a heat recovery process where the exhaust gas is cooled and further fed to a CO 2 separation process for capturing of CO 2 .
Abstract:
A system and System for removing CO2 from an input gas stream. The system comprises a carboniser segment configured such that a solid sorbent reacts therein with the input gas stream to remove CO2 from the input gas stream; a calciner segment configured such that the solid sorbent from the carboniser segment reacts therein to release the CO2 into a substantially pure gas stream; a heat exchanger unit for exchanging heat between the carboniser and calciner segments; a first conditioning unit for controlling a CO2 partial pressure in the carboniser segment; and a second conditioning unit for controlling a CO2 partial pressure in the calciner segment; wherein the first and second conditioning units are configured such that a difference between the CO2 partial pressures in the carboniser and calciner segments respectively is controlled such that heat is provided from the carboniser to the calciner through the heat exchanging unit.
Abstract:
The invention relates to a method and a device for treating fluid streams produced during the combustion of carbon- and ash-containing fuels. The aim of the invention is to optimally utilize the heat content present in the system as well as the amount of water for cooling and condensation required during the recirculation of the latter. The method according to the invention is characterized in that the suspension (6) withdrawn from the mixing vessel is expanded in at least one subsequent stage (7a)-(7d) during the evaporation of at least part of the water and reduction of the temperature and in that the vapor produced is cooled by direct contact with water and at least partially condensed out. The device according to the invention is characterized in that a line (6) between a lower section of the mixing vessel (1b) leads to a first expansion vessel that is designed as a scrubber tower (7a), the scrubber tower being provided with a condensate collection bottom (8a) and a recirculation line (10a) towards the mixing vessel (1b) for the forming condensate, which mixing vessel is equipped with spray heads.
Abstract:
Die Erfindung betrifft ein Verfahren zur Kaltwassererzeugung unter Nutzung von Desorbatwärme, die bspw. in einer Lösemittelrückgewinnungsanlage (1) anfällt. Hierzu wird in einem Desorbatwärmetauscher (12) ein Heiz- oder Kühlmedium erwärmt und dessen Wärmeenergie in einem Puffersystem (25) gespeichert, aus welchen mittels eines weiteren Heiz- oder Kühlmediums Wärmeenergie bspw. zum Heizen von Räumen abgeführt wird. Die Nutzung von Desorbatwärme zur Kaltwassererzeugung kann dadurch erreicht werden, dass das weitere Heiz- oder Kühlmedium vor der Nutzung seiner Wärmeenergie bspw. zum Heizen von Räumen in einem Temperaturgleichrichter (28) auf ein im Wesentlichen konstantes Temperaturniveau zwischen 85° C und 110° C gebracht und die Wärmeenergie des Heiz- oder Kühlmediums in einer dem Temperaturgleichrichter (28) nachgeschalteten Kaltwassererzeugungsanlage (30) zur Kühlung eines Kühlmediums eingesetzt wird. Weiter betrifft die Erfindung eine Anlage zur Kaltwassererzeugung unter Nutzung von Desorbatwärme.
Abstract:
An apparatus for the treatment of a waste gas that is capable of recovering the heat generated by the catalytic oxidation of a waste gas to the largest possible extent and allowing the temperature of the treated gas in a first waste gas pre-heater to be adjusted to an arbitrary level incapable of condensing moisture and/or corrosive gas is provided. The apparatus for the treatment of the waste gas includes a molecular oxygen-containing gas supplying device (207), second to n'th waste gas pre-heaters (202,203), a heat-recovering device (204), and a reactor (201).