Scientia Meetings cordially invites all the participants from all over the world to attend “Chemical Engineering and Catalysis” with theme “Catalytic Concepts and Approaches in Chemical Engineering” which will be held during September 27-29, 2021 in Washington D.C.(ChemiCat-2021) ChemiCat-2021 provides many exciting opportunities for scientists to create a unique program to hear presentations most suited to one's personal interests by going back and forth among concurrent conferences. ChemiCat-2021 provides fantastic opportunity to network with your peers from academia and industry.