How do you reduce NOx in diesel fuel?

NOx emission can be reduced by primary methods such as retard injection, fuel nozzle modification, change of compression ratio, water direct injection, water emulsification, exhaust gas recirculation (EGR) and secondary method such as selective catalytic reduction (SCR).

Can you mix diesel fuel and kerosene?

Kerosene can be mixed with diesel fuel to gain a couple of benefits. The rule of thumb is that mixing in ten percent kerosene will lower the cold filter plugging point of a diesel fuel blend by five degrees.

How much NOx does a diesel engine produce?

Concentrations of NOx in untreated diesel exhaust are typically between 50 and 1000 ppm. If concentrations are given in mass units, NOx is usually expressed as NO2 equivalent.

How do you calculate NOx emissions?

The NOx charge will be calculated by applying a per-milligramme per-kilomtere matrix to the officially recorded manufacturer emissions levels of NOx per kilometre. The charges will be incremental and will work on a sliding scale calculating the cars NOx emissions in milligrams per kilometre (mg/km).

Why is NOx bad?

NOx can cause serious health damage to humans, including respiratory diseases. NOx is also responsible for smog and the typical brown cloud that covers larger cities and produces poor air quality. NOx reacts with volatile organic compounds in the presence of sunlight and forms ground-level ozone.

How do I get rid of NOx?

The best way to minimize NOx formation is to reduce flame temperature, reduce excess oxygen, and/or to burn low nitrogen-containing fuels. The following represents proven, available NOx-reduction strategies and technologies for combustion sources. Fuel switching.

Is kerosene cheaper than diesel?

If your furnace is equipped for kerosene, the heat from a kerosene heater can easily heat a typical home in a mild climate, reports “The Decatur Daily News.” Usually, the kerosene heating oil K-1 is used when diesel isn’t available; however, it’s more expensive than its diesel counterpart.

What can I use instead of kerosene?

Generic lamp oil can be used as a substitute to kerosene in lamps. Lamp oil is generally more expensive than kerosene but burns cleaner and with less odor than kerosene. Citronella oil can be burned in wick lamps but produces a larger amount of smoke and soot and quickly fouls wicks.

Why do diesels produce more NOx?

Why do diesel engines produce more NOx than petrol engines? Diesel engines operate at a higher temperature and pressure than petrol engines. These conditions favour the production of NOx gases. The quantity depends on the volume and duration of the hottest part of the flame.

Which is worse CO2 or NOx?

Nitrogen oxides are pollutants, constituting an immediate threat to human health, while CO2 is a longer-term – albeit profound – hazard, detrimentally affecting the planet’s climate.

Is CO2 and NOx the same?

While diesel engines emit LESS CO2 than their petrol equivalent, they emit MORE NOx. The very things that make diesel engines produce less CO2; high combustion temperatures and lean burning, in turn produce higher levels of NOx. More diesel engines brought down CO2 emissions significantly, but increased NOx levels.

Can you smell NOx?

NOx is produced from the reaction of nitrogen and oxygen gases in the air during combustion; especially at high temperatures. Nitrogen dioxide (NO2) is a reddish-brown gas with a pungent smell.

Where does the NOx come from in a diesel engine?

High temperature combustion of fuels where the temperature is hot enough (above about 1300°C/ 2370°F) to oxidise some of the nitrogen in air to NOx gases. This includes burning hydrogen, as it burns at a very high temperature.

How does the combustion of fuels affect NOx?

In general – higher combustion temperature and higher air/fuel ratios increases NOx emissions. 2) zero emission for hydrogen is a theoretically value. In practice hydrogen burned in air produces more NOx than natural gas due to the high flame speed 3) catalytic systems common on most modern vehicles reduces NOx

Why are NOx emissions from diesel cars more efficient?

A. Diesel engines operate at a higher temperature and pressure than petrol engines. These conditions favour the production of NOx gases. The quantity depends on the volume and duration of the hottest part of the flame. Q. Why are diesel cars more fuel efficient than petrol/gasoline cars?

What can be used to remove NOx from exhaust gases?

Urea or ammonia is injected, and the NOx gases are reduced to nitrogen without the need for a catalyst. On an industrial scale, exhaust gases can be scrubbed with chemicals such as sodium hydroxide, hydrogen peroxide, or a mixture of hydrogen peroxide and nitric acid. These chemicals react with the NOx gases and removes them. Q.