Contributing to climate and
ENVIRONMENTAL PROTECTION IN THREE WAYS
By mitigating the greenhouse effect, helping to preserve the ozone layer, and reducing atmospheric pollution with other, health and climate damaging nitrogen oxides, the EnviCat® NOx process contributes to climate and environmental protection. The catalyst EnviCat®N2O is a central component of the innovative process.
Challenge
REDUCING HARMFUL EMISSIONS – THE CATALYST ENVICAT®N2O AND ENVICAT® NOx REMOVE NITROUS OXIDE
The signs of climate change can no longer be ignored. While carbon dioxide is a major contributor to the greenhouse effect, nitrous oxide – commonly known as laughing gas – is the third most damaging climate gas after methane and is responsible for about 6% of anthropogenic climate effects. One unit of nitrous oxide is about 300 times more climate damaging than the same amount of CO2. Nitrous oxide results mainly from the industrial production of nitric acid used in fertilizer manufacture and other processes.
Challenge
REDUCING HARMFUL EMISSIONS – THE CATALYST ENVICAT®N2O AND ENVICAT® NOx REMOVE NITROUS OXIDE
The signs of climate change can no longer be ignored. While carbon dioxide is a major contributor to the greenhouse effect, nitrous oxide – commonly known as happy gas or laughing gas – is the third most damaging climate gas after methane and is responsible for about 6% of anthropogenic climate effects. One unit of nitrous oxide is about 300 times more climate damaging than the same amount of CO2. Nitrous oxide results mainly from the industrial production of nitric acid that is used in fertilizer manufacture and other processes.
Solution
An innovative catalyst in an ingenious process
The Clariant catalyst EnviCat® N2O used in the EnviCat® NOx process, developed by ThyssenKrupp Uhde GmbH, removes nearly all of the nitrous oxide from the tail gas of nitric acid plants and converts it in two stages to the harmless substances oxygen, nitrogen and water. At the heart of the process is the highly active catalyst EnviCat® N2O consisting of porous, crystalline zeolites.
Benefits
Meeting legal restrictions without impacting the manufacturing process
MEETING REGULATIONS
for the strict limits on nitrous oxide gas emissions
12 MILLION TONS CO2
Every year, the EnviCat® NOx process purifies nitrous oxide emissions equivalent to greenhouse gas emissions of four million cars per year
PURIFICATION OF TAIL GAS
Solutions available that can be installed without modifying the process cycle
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