If hydrogen is offered in the exhaust, the TWC/TWNSC can even produce ammonia, which reduces the expected number of urea injection; This can be a consequence of the decreasing temperature, as demonstrated in Figure 3c. Because of this, lean operation is beneficial in terms of NOX emissions only at low https://water-car80012.blogolize.com/helping-the-others-realize-the-advantages-of-hho-72871671