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Welcome to the working group Gas Particle Systems (GPS)!



In the fields of research, teaching and innovation we deal on the one hand with the handling of gas particle systems and on the other hand with methods for the investigation, measurement and adjustment of material and functional particle properties.

The main issues of our current research are:

  • Gas cleaning with filtering and electrostatic separators
  • The behavior of reactive particle systems in separators
  • Further development of particle measurement technology in the context of smart filters
  • Adaptronic in the field of gas particle filter technology
  • Generation of droplets and their separation
  • Characterization, measurement and reduction of fine and ultrafine particulates

Applications of gas cleaning are found in energy technology (e.g. high temperatures), motor vehicle technology (high power density, durability) or in the separation of product aerosols (e.g. elevated concentrations). The panoply of investigations of functional particle characteristics aims for one at the development of catalysts and redispersibility of particle structures, but in particular also at new methods of real-time process control.

Our strategy combines explorative and fundamental research with user oriented technique development.



Die Projektpartner
The project partners at the kick-off

2.12.2019 - Kick-off of the ZIM project "Development of a resource-efficient scrubber with high separation efficiency for metallic particles from grinding processes"

A delegation from ESTA Apparatebau GmbH & Co. visited the working group for the project kick-off. First project contents were coordinated and the further procedure was planned. We are looking forward to the joint project and thank the project executing agency.

Dirty Hanno 2
Hanno Settele interviews Prof. Dittler

21.11.2019 - Contribution to the DOK1 programme "Dirty Hanno 2 - The Legend of Clean Wood"

As part of its reporting on the use of wood, KIT supported Hanno Setttele's report with facts on particle separation from exhaust gases. The KIT contribution can be viewed from minute 19:50. The entire programme can be viewed on the Internet at the following link: https://tvthek.orf.at/profile/Dok-1/13844820/Dok-1-Dirty-Hanno-2-Die-Legende-vom-sauberen-Holz/14032706

Spendenübergabe Moelter
Handover of the donation cheque

15.11.2019 – Donation of entrepreneurial personality Leander Moelter (founder and former CEO of Palas GmbH) to the working group Gas Particle Systems

Leander Moelter handed over a generous donation to the working group "Gas Particle Systems" for the promotion of young scientists. Invited guests of honour (Dr.-Ing. Heinz Umhauer, Dr.-Ing. Peter Gäng, Univ.-Prof. Dr.-Ing. habil. Eberhard Schmidt, Ralf Emberger) enriched the ceremony with entertaining speeches. They highlighted various aspects of the long-standing cooperation between Palas GmbH and the working group Gas Particle Systems. The guests followed the stories with great interest and excitement. We are very happy about the donation and will use it in the sense of the donor. Thank you very much, Leander Mölter!


auf der Filtech 2019
Members of the GPS-Group at FILTECH 2019

22.-24.10.2019 – FILTECH, Coglogne

At this year's FILTECH members of the working group present results of large number of ongoing research project. They also took the opportunity to look beyond their own research projects and establish contacts with companies.

KIT Birthday
Happy Birthday KIT!

01.10.2019 - 10 Years KIT

Die GPS working group congratulates!

Leander Moelter zu Besuch
Visit by Leander Mölter

26.09.2019 – Visit by Leander Mölter

On September 26, Leander Mölter, founder and former CEO of Palas - today a retired entrepreneur and deep-sea sailor - visited the chair. He brought great news, which we are very happy about.



Palas Air-Filtration-Seminar
Palas Air Filtration Seminar

24.09.2019 – Palas Air Filtration Seminar

Prof. Dittler gave a lecture at the Palas Air Filtration Seminar in Karlsruhe on the consideration of real effects in filter testing.


Filterkonsortium 09-19
Members of the Filter Consortium at MVM

12.09.2019 - Main meeting of the "Filter Consortium at KIT"

The members of the "Filter Consortium at KIT" met today at the Institute of Mechanical Process Engineering and Mechanics to discuss current results from research and development around the topic "Smart Filters" and to jointly coordinate the work packages for the years 2020 and 2021 in an open working atmosphere.

Certificate of Appointment

28.08.2019 - Prof. Dittler appointed Deputy Chairman of the ProcessNet Gas Cleaning Division

In August 2019, Prof. Dittler was appointed Deputy Chairman of the ProcessNet Gas Cleaning Division for the next 5 years.

Verleihung des Emil-Kirschbaum-Preises 2019 an Julian Zoller
Prof. Dittler and Julian Zoller at the handing over of the Master's certificate

12.07.2019 - Emil-Kirschbaum-Award for Julian Zoller!

Congratulations to our colleague Julian Zoller for the Emil Kirschbaum Award 2019.
The Emil Kirschbaum Prize is awarded annually by the KIT - Faculty of Chemical and Process Engineering for the best CIW Master's degree and is handed over at the award ceremony.



Artikel in FAZ
Article in the FAZ

28.4.2019 – Frankfurter Allgemeine Sonntagszeitung reports on air pollution

The Frankfurter Allgemeine Sonntagszeitung reports on a current topic of air pollution, on which Prof. Dittler was interviewed.

Besuch bei Fa. BinNova
Visiting the company BinNova

16.4.2019 - Visit to BinNova in Rudolstadt, Thuringia

A delegation of the GPS working group visited the company BinNova in Rudolstadt for a project meeting.

GPS Members at Partec 2019
Members of the GPS-Group at PARTEC 2019

09.-11.04.2019 - PARTEC 2019

At this year’s PARTEC,which took place in Nuremberg from April 9 to 11, 2019 we presented new research projects and results to a broad specialist audience.

AFS Filtcon 2019 Philadelphia
AFS Filtcon 2019 in Philadelphia-Cherry Hill

1.-3.4.2019 - AFS Filtcon 2019 in Philadelphia-Cherry Hill

At this year's AFS conference in Philadelphia-Cherry Hill Prof. Dittler hold a keynote lecture and chaired a session.

GPS Gruppe St. Leonhard Oesterreich
The GPS-Group in St. Leonhard, Austria

22.-29.3.2019 - Strategy and Research Retreat

For the 29th seminar "Mechanical Process Engineering" the GPS-Group met in St. Leonhard, Austria for this year's strategy and research retreat.

DFG Rundgespräch 2019
DFG round-table discussion "Mechanical Process Engineering"

21.3.2019 – DFG-Round-Table Discussion „Mechanical Process Engineering“ in Clausthal-Zellefeld

Prof. Dittler participated at the annual round-table discussion "Mechanical Process Engineering" of the German Research Foundation DFG which this year took place in Clausthal-Zellerfeld.

ProcessNet Jahrestagung Gasreinigung
ProcessNet annual conference "Gas Cleaning" in Bamberg

14.3.2019 – ProcessNet Annual Conference "Gas Cleaning"

Latest research findings were presented and discussed at the ProcessNet annual conference "Gas Cleaning" in Bamberg. The GPS working group presented several lectures and posters.

Leopoldina Berlin
Prof. Dittler in Berlin at the National Academy of Sciences Leopoldina

21.2.2019 – in Berlin

Professor Dittler travelled to Berlin to attend the constituent meeting of the Leopoldina working group "Limit Values for Air Pollution" which addresses the issue of limit values concerning air pollution with nitrogen oxides.

Besuch bei der LUBW Karlsruhe
Visiting the LUBW, Karlsruhe

05.02.2019 - The air is cleaner than ever

Students and listeners of the lecture "Gas Particle Measurement Technology" could convince themselves of this personally during a field trip to the LUBW (State Institute for the Enviroment Baden-Württemberg) at the location Großoberfeldstraße in Karlsruhe. The students were impressed by the meticulousness with which the immission measurement values are determined and gained many new impressions.



Feinstaubfresser-Säulen am Stuttgarter Neckartor
Fine dust eater columns at Stuttgart Neckartor

18.01.2019 - Measurements to demonstrate fine dust reduction

In the context of a master thesis we deal with the mode of action of the so-called "fine dust eater columns", which are set up at the Stuttgart Neckartor in order to reduce the particle immission locally.

10th Filtration Day, IUTA
10th Filtration Day, IUATA, Duisburg

13.11.2018 - 10th Filtration Day, IUTA, Duisburg

Prof. Dittler held a keynote lecture on the topic of "Digitization in Filter Technology" at the 10th Filtration Day of the IUTA.

Workshop PM2.5 - what's next?
Workshop "PM2.5 - what's next?"

18.9.2018 - Workshop „PM2.5 - what’s next?“

On 18.9.2018 Prof. Dittler opened the workshop "PM2.5 - what's next?" which he moderated in Karlsruhe with the talk "Fine dust - facts and public perception".

Mitglieder des "Filterkonsortiums am KIT"
Members of the "Filter Consortium at KIT"

05.07.2018 - Kick-off of the "Filter Consortium at KIT"

"Smart Filters", which are always optimally operated and maintained due to to digitization, sensors and control technology, is one of the goals of the "Filter Consortium at KIT", which has now been established under the coordination of KIT with eight industrial companies.

Besuch von Prof. Ben Mullins
Visit by Prof. Ben Mullins

25.06.2018 Visit by Prof. Ben Mullins from Curtin University, Australia

We were proud to welcome Prof. Ben Mullins from Curtin University Australia, who visited the GPS working group discussing further collaborative research projects in the field of oil mist filtration.

Eckhard Kolb an der University of Akron
Eckhard Kolb visits Prof. Chase at the University of Akron

29.04.2018 Visit to the University of Akron, Ohio, USA

During a stay in the USA, Eckhard Kolb, member of the "Gas Particle Systems" working group, used the opportunity to exchange ideas with Prof. Chase at the University of Akron.

Prof. Gert Naue
Prof. Gert Naue visits the GPS working group

26.04.2018 Invited lecture by Prof. Dr.-Ing. habil. Gert Naue

During the seminar "Gas-Particle Systems" Prof. Naue, former rector of the TH Leuna-Merseburg, gave an exciting lecture on "Structural mechanics of fluid turbulence and foundation of dispersion processes", which inspired the participants to question familiar models of thought and to take their measurement results seriously.

A. Dittler bei bdvb
Achim Dittler at the Federal Association of German Economists (bdvb)

16.04.2018 - Fine Dust - a  close look

Punctually at the end of the fine dust alarm season, Prof. Dittler was allowed to take a close look at the topic "fine dust" at the Federal Association of German Economists (bdvb) and inform an interested audience about the situation around this often very emotionally occupied topic.

Besuch bei Freudenberg
Visit to Freudenberg

27.3.2018 - Visit to Freudenberg in Weinheim

A small delegation of the working group received insights into the production of cartridge and cassette filters today at Freudenberg in Weinheim. A guided tour of the laboratory and an exchange of information rounded off the very successful visit programme. As part of today's visit, it was agreed to offer students of the Gas Particle Separation Technology lecture an excursion to Freudenberg in the coming winter semester.

Besuch der China University of Petroleum, Beijing
Visit of a Delegation from the China University of Petroleum, Beijing

21.3.2018 - Visit of a Delegeation from the China University of Petroleum, Beijing

A delegation from the China University of Petroleum led by Prof. Ji. Zhongli visited the working group for a technical exchange on topics related to gas particle technology. The focus of the visit was a guided tour of the institute in which the guests were able to get to know current research projects of the working group.

GPS Gruppenbild FILTECH 2018
The GPS-Group at FILTECH

13.-15.3.2018 - FILTECH 2018

FILTECH, one of the largest and most important events - conference and exhibition - for filtration and separation technology worldwide, took place in Cologne from March 13-15.

The working group Gas Particle Systems (GPS) visited the event to present their latest research results and to make contacts.

Achim Dittler beim Rotary Club
Achim Dittler at the Rotary Club

5.3.2018 - Lecture on the topic of diesel engines

At the invitation of the Rotary-Club Karlsruhe-Schloss, Prof. Dittler shed light on the current topic "Diesel exhaust gases: justified in criticism?"  -  the answer? A clear "yes and no".