发明名称 |
Dewatering system and process for increasing the combined cycle efficiency of a coal powerplant |
摘要 |
A process for treating coal includes contacting the coal with a leaching agent configured to remove a mineral from the coal; forming a wastewater stream comprising water and a concentration of a contaminant; and contacting the wastewater stream with a first side of a reverse osmosis membrane under pressure, wherein a permeate stream comprising a reduced concentration of the contaminant permeates the reverse osmosis membrane and flows from a second side of the reverse osmosis membrane, and a concentrate stream comprising an increased concentration of the contaminant is retained on the first side of the reverse osmosis membrane. |
申请公布号 |
US8968430(B2) |
申请公布日期 |
2015.03.03 |
申请号 |
US200912395225 |
申请日期 |
2009.02.27 |
申请人 |
General Electric Company |
发明人 |
Draper Samuel David;Polizzotti David Matthew;Sonwane Chandrashekhar Ganpatrao |
分类号 |
C10L9/02;C02F1/44;C10L9/06 |
主分类号 |
C10L9/02 |
代理机构 |
Cantor Colburn LLP |
代理人 |
Cantor Colburn LLP |
主权项 |
1. A process for treating coal, comprising:
contacting the coal with a leaching agent configured to remove a mineral from the coal; forming a wastewater stream comprising water and a concentration of a contaminant; and contacting the wastewater stream with a first side of a reverse osmosis membrane under pressure, wherein a permeate stream comprising a reduced concentration of the contaminant permeates the reverse osmosis membrane and flows from a second side of the reverse osmosis membrane, and a concentrate stream comprising an increased concentration of the contaminant is retained on the first side of the reverse osmosis membrane, wherein forming a wastewater stream comprising water and a concentration of a contaminant is directly followed by contacting the wastewater stream with a first side of a reverse osmosis membrane under pressure, and the permeate stream is supplied to a gas turbine without further treating the coal. |
地址 |
Schenectady NY US |