Catalytic Reduction of Nitrogen Oxides in Automotive Exhaust Containing Excess Oxygen by NOx Storage-Reduction Catalyst
Tóm tắt
Automotive catalyst technology is now faced with very difficult problems. As a result of automakers' efforts to produce more efficient and lower-emission vehicles, lean-burn gasoline engines have been introduced into the market. While these are much more efficient than the conventional engines, the NOx removal has become significantly more difficult. After enormous efforts, we succeeded to solve the problem by inventing a new class of catalyst. Here, our challenge to develop the new catalyst that stores and then reduces NOx is described. The catalyst made it possible for emissions of lean-burn engines to meet the strict NOx regulations.
Tài liệu tham khảo
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