Hospital emissions: N2O abatement

Summary of the technology

The subject of the offer is catalyst, α-Al2O3 supported, dedicated to reduce the emission of N2O in a low temperature range.

Hospital gases collectors, nitric acid production plant emitters, adipic acic production plant emitters.

Jagiellonian University

Details of the Technology Offer

Nitrous oxide, sweet-tasting and colorless gas, known as laughing gas, is used in chemicals manufacturing, pressure packaging and also in medicine.

In the same time, N2O is emitted during many agricultural and industrial activities. Globally, about 1% of all the nitrogen fertilizer applied to the soil is emitted to the atmosphere as nitrous oxide.

Furthermore, a single nitrous oxide molecule has 298 times higher the global warming potential comparing to carbon dioxide molecule.

In medical treatment, nitrous oxide is widely used as a base anesthetic, extensively for relative analgesia and as a freezing agent in cryosurgery. Therefore, it is a component of waste hospital gas mixture.

Many different ways to collect and destroy the used nitrous oxide were investigated, but the catalyst for the low-temperature range is still highly demanded to proceed with the reduction process.

The offered invention relates to:

  • Manufacture technology of supportedspinel catalyst:K/Co2,6Zn0,4|α-Al2O3, 10-15% of active phase supported α-Al2O3;
  • Preliminary examination confirmed catalyst activity after 1000h exposure in gas mixture: H2O, O2 NOx i N2O. Operating GHSV was of 5000 h−1;
  • For N2O, 90% - 99% is converted in temperature range 450-500°C;
  • The form of catalyst is one-opening-Raschig rings (dex /h ~ 4/2 mm).

Catalyst mechanical properties:

  • Crush strenght: 20 daN/ring
  • Porosity: 50-54%
  • Bulk density: 730-750 kg/m3

Intellectual property status

Patent already applied for

Where: Patent Office of the Republic of Poland

Desired business relationship

Technology development

Related Keywords

  • Energy Technology
  • Biological Sciences
  • Medicine, Human Health
  • Clinical Research, Trials
  • Physical Sciences and Exact Sciences
  • Chemistry
  • Environment
  • Protecting Man and Environment
  • Environmental Medicine, Social Medicine, Sports Medicine
  • Smart City
  • Medical Health related
  • Other ( Clinical Medicine related )
  • Medical equipment
  • Environmental Medicine, Social Medicine,Sports Medicine
  • catalyst
  • nitrous oxide
  • hospital emissions
  • nitric acid production
  • cryosurgery

About Jagiellonian University

Jagiellonian University, founded 1364, is the oldest university in Poland and one of the oldest worldwide. The research and teaching activities are conducted at 15 faculties, including the Medical College (Collegium Medicum). Over 3,700 researchers work at the university and the total number of students is about 50,000.

Jagiellonian University

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