Patent ID: 7723257
Filing Date: 2010-05-25
Classification: B01D,B01J,B82Y,F01N

Abstract:
1. A process of burning of at least one fuel in a chamber of an engine, comprising at least the step of admission of fuel and oxygen containing gas into said chamber, the step of compression of the fuel-oxygen containing gas in said chamber, the step of burning at least partly the fuel in said chamber, and the step of ejecting burning gases out of said chamber, whereby the compression step is carried out in said chamber in presence of a catalyst system comprising: a support containing at least one atom selected from the group consisting of aluminium and iron, at least one deposit contacting said support, said deposit containing advantageously at least Ce, Pr, Nd and La, whereby said deposit comprising a series of adjacent grains with a size greater than 1 μm, whereby said grains of said series have a first face in direct contact with the support and a second face not contacting the support, whereby said deposit covers a first portion of the support, while not covering a second portion of the support so as to define zones extending between adjacent grains, a first group of carbon nano/meso film contacting only a portion of the second face of one deposit, whereby leaving at least partly said second face of said deposit free of carbon deposit, a second group of carbon nano/meso film contacting only partly the second portion of the support, and a carbon containing structure extending between at least one carbon nano/meso film of the first group and at least one carbon nano/meso film of the second group, whereby the burning step is carried out in said chamber, at least partly at a temperature higher than 700° C. and at a pressure higher than 10 10 a support containing at least one atom selected from the group consisting of aluminium and iron, at least one deposit contacting said support, said deposit containing advantageously at least Ce, Pr, Nd and La, whereby said deposit comprising a series of adjacent grains with a size greater than 1 μm, whereby said grains of said series have a first face in direct contact with the support and a second face not contacting the support, whereby said deposit covers a first portion of the support, while not covering a second portion of the support so as to define zones extending between adjacent grains, a first group of carbon nano/meso film contacting only a portion of the second face of one deposit, whereby leaving at least partly said second face of said deposit free of carbon deposit, a second group of carbon nano/meso film contacting only partly the second portion of the support, and a carbon containing structure extending between at least one carbon nano/meso film of the first group and at least one carbon nano/meso film of the second group, and whereby the said burning step is carried out at least in presence of OH