Patent ID: 7765794
Filing Date: 2010-08-03
Classification: C09K,E21B,F01N,F02B,Y02A,Y02T

Abstract:
1. A method of providing compressed low NO x exhaust gas for industrial purposes including use in augmenting crude oil production comprising: (1) extracting exhaust gas from an engine consuming a controllable mixture of hydrocarbon fuel and air; (2) passing said extracted exhaust gas through at least one compression and cooling step by which water is condensed from the exhaust gas; (3) separating out said condensed water to provide substantially dry exhaust gas; (4) measuring the pH of said condensed water; (5) using measurements obtained from Step (4) to regulate the ratio of hydrocarbon fuel and air consumed in said engine so that said condensed water has a substantially neutral pH and thereby said exhaust gas has a low NO (6) compressing the dry and low NO