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Power generation

A power and power station technology, applied to engine components, machines/engines, boreholes/well components, etc., can solve problems such as waste of water

Inactive Publication Date: 2009-07-22
BHP BILLITON INNOVATION PTY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will waste a lot of water, usually or about tens of thousands of liters / day

Method used

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Embodiment Construction

[0105] Referring to the figure, the method comprises separating coalbed methane and water, which are co-pumped from the subterranean source 3, in a condenser or other suitable separation device 71 into two separate product streams, coalbed methane and water.

[0106]Water from condenser 71 is supplied via line 75 for one or more unit operations in the power generation plant shown in the figures. One application is in the cooling water circuit (not shown) of the plant. The cooling water circuit comprises, for example, one or more water cooling towers using water as make-up water. Another application is as make-up water in the heat recovery steam generator 27, as described below.

[0107] Where the generally high salinity of the water and the generally high bulk dissolved solids are problematic, the method involves treating the water from condenser 71 to reduce the salinity and TDS levels, for example by passing the water through a reverse osmosis unit before cooling This wate...

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Abstract

A method and an apparatus for generating power in a power plant with no CO2 emissions are disclosed. The method comprises separating coal bed methane and water extracted from an underground deposit, using the coal bed methane as a source of energy for operating a gas turbine and ultimately generating electricity, in a power plant and using the water in the power plant, for example in a cooling water circuit of the power plant. The method includes separately or in combination supplying steam to a combustor of the gas turbine.

Description

technical field [0001] The present invention relates to a method and equipment for generating electric power, which is based on using coal bed methane as an energy source for driving gas turbines and steam turbines to generate power. Background technique [0002] The term "coal methane" is here understood to mean a gas comprising at least 75% by volume methane obtained from underground coal sources. [0003] International application PCT / AU2004 / 001339 (WO 2005 / 5031136) describes and claims in the name of the applicant a method of generating power via gas and steam turbines in a power plant, the method comprising a first mode of operation: [0004] (a) Feed coal seam gas, gas containing oxygen, and flue gas produced in a gas turbine under pressure to a burner of a gas turbine, burn the coal seam gas and use heated combustion products and flue gas to drive the gas turbine ; [0005] (b) feeding the stream of hot flue gas produced in the gas turbine to a heat recovery steam g...

Claims

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Application Information

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IPC IPC(8): F02C3/22F02C3/30F01K23/10F02C7/22E21B43/34
Inventor 内洛·尼格罗
Owner BHP BILLITON INNOVATION PTY LTD