摘要:
A gas turbine topping device, which is disposed upstream of a steam-raising section, is used for generating power in the manufacture of sulphuric acid. A sulfur-burning combustor generates hot sulfur dioxide while a pressure-exchanging ejector mixes the hot combustion gases with a cooler gas (e.g. pressurized air, pressurized N 2 or recycled sulfur dioxide (SO 2 ) to form a mixed working gas having a temperature below the maximum allowable temperature (metallurgical limit) of the blades of the turbine. The turbine drives an oxygen compressor which supplies oxygen to a bubbling chamber which also receives S 8 to produce sulfur vapor for combustion. By using stoichiometric quantities, sulfur dioxide is delivered in requisite quantities to a sulfuric acid plant without any harmful emissions. Useful amounts of electrical power can thus be generated by the gas turbine topping device as well as the downstream steam turbine by harnessing the enormous amount of waste heat involved in the manufacture of sulfuric acid.
摘要:
Systems, methods, and apparatus are provided for generating power in combined low emission turbine systems and capturing and recovering carbon dioxide from the exhaust. In one or more embodiments, the exhaust from multiple turbine systems is combined, cooled, compressed, and separated to yield a carbon dioxide-containing effluent stream and a nitrogen-containing product stream. Portions of the recycled exhaust streams and the product streams may be used as diluents to regulate combustion in each combustor of the turbine systems.
摘要:
The present invention relates to (with reference to figure 2) a gas turbine system comprising: a gas compressor (210); an upstream heat source, e.g. a fuel cell (212), which receives gas compressed by the compressor (210) and heats the gas passing therethrough (and when a fuel cell generates electrical power); an intermediate turbine (220) which receives the gas previously heated in the upstream heat source and which is connected to and drives the compressor (210); and an output turbine (240) which receives gas output by the intermediate turbine (220). Expanded gas leaving the intermediate turbine passes to the output turbine through either or both of a downstream combustion chamber and/or a downstream fuel cell, whereby the expanded gas is reheated prior to expansion in the output turbine (240). Preferably the system is configured such that the temperature of the gas received by the output turbine (240) is higher than the temperature of the gas received by the intermediate turbine (220).
摘要:
A gas turbine topping device, which is disposed upstream of a steam-raising section, is used for generating power in the manufacture of sulphuric acid. A sulfur-burning combustor generates hot sulfur dioxide while a pressure-exchanging ejector mixes the hot combustion gases with a cooler gas (e.g. pressurized air, pressurized N 2 or recycled sulfur dioxide (SO 2 ) to form a mixed working gas having a temperature below the maximum allowable temperature (metallurgical limit) of the blades of the turbine. The turbine drives an oxygen compressor which supplies oxygen to a bubbling chamber which also receives S 8 to produce sulfur vapor for combustion. By using stoichiometric quantities, sulfur dioxide is delivered in requisite quantities to a sulfuric acid plant without any harmful emissions. Useful amounts of electrical power can thus be generated by the gas turbine topping device as well as the downstream steam turbine by harnessing the enormous amount of waste heat involved in the manufacture of sulfuric acid.
摘要:
In at least one embodiment of the present invention, a method of heating a FCC unit having a regenerator and a reactor having overall CO 2 reduction is provided. The method comprises compressing syngas to define compressed syngas. Separating a first stream of gas comprising CO 2 from the compressed syngas. A second stream of gas comprising O 2 is expanded with the first stream of gas to produce a feed gas. The feed gas is introduced to the regenerator at gasification conditions to burn coke from coke heavy spent catalyst advanced from the reactor, producing syngas and heat for operating the reactor at reaction temperatures.
摘要:
L'invention concerne un procédé de production d'électricité, de vapeur et d'eau désalinisée au moyen d'une unité de production de vapeur, d'une turbine à vapeur et d'une unité de désalinisation d'eau de mer dans lequel : - l'unité de production de vapeur produit de la vapeur, - la turbine à vapeur utilise au moins une partie de la vapeur produite par l'unité de production de vapeur et produit de l'électricité et de la vapeur, - l'unité de désalinisation d'eau de mer produit de l'eau désalinisée par vaporisation de l'eau de mer par échange de chaleur avec au moins une partie de la vapeur produite par la turbine à vapeur,
dans lequel on contrôle la quantité de vapeur produite par l'unité de production de vapeur à fournir à la turbine à vapeur en fonction de la demande en électricité, de la demande en eau désalinisée et de la demande en vapeur.
摘要:
An MHD stand-alone high efficiency power generation method comprises following three steps; a thermo-chemical coal gasification step in which waste heat of exhaust gas from an MHD generator 1b of an MHD power generation apparatus 1 is converted into chemical energy of coal syngas by a coal gasification process in the furnace 2; a pre-heating step in which the waste heat of the exhaust gas through the coal gasification furnace 2 is recovered as a sensible heat of a coal syngas and hydrogen mixture by heat exchange in the pre-heater 3; and an iodine - sulfur reaction step in which the waste heat of the exhaust gas through the fuel pre-heater is converted into hydrogen energy by splitting water in the IS system 4. By means of the said three steps, the high temperature waste heat from the MHD generator 1b is regenerated as the sensible heat of the fuel mixture and the fuel chemical energy. The method further comprises a step in which the regenerated energy is re-circulated to a combustor 1a of the MHD power generation apparatus 1, and the fuel consisting of the syngas produced in the gasification furnace and the hydrogen produced in the iodine - sulfur unit is combusted with pure oxygen. As a result, a high efficiency power generation system with no carbon dioxide emission capability can be designed by using an MHD stand-alone unit, and using coal resource as the primary fuel.
摘要:
A low pollution power system has an air separator (1003) to collect oxygen and a gas generator (1004) to combust the oxygen and a hydrocarbon fuel. The combustion products are then expanded through at least one turbine (1005). Diluents are also delivered to the gas generator to control temperature.