Youngest Ever Recipient of the Air Products' Prestigious Chairman's Award (1992)
Presidential Citation for Outstanding Achievement from the Univ. of Delaware (1995)
Institute Award for Excellence in Industrial Gases Technology from the AIChE (1998)
Clarence G. Gerhold Award, Separations Division, AIChE (2001)
Honorary Fellow, Indian Institute of Chemical Engineers (IIChE), 2001
Diamond Award for Inventor on One Hundred US Patents, Air Products and Chemicals (2001)
Member, U. S. National Academy of Engineering (2002)
BAYER Lecture, Carnegie Mellon University (2002)
Air Products' Equipment Innovation Award for APX™ LNG Process (2003)
J&E Hall Gold Medal, Institute of Refrigeration, UK (2004)
Regents' Lecturer, Univ. of California, LA (2004)
Prof. B. D. Tilak Visiting Fellowship Lecture, ICT, India (2004)
AIChE Institute Lecturer (2005)
Chemical Engineering Practice Award, AIChE (2006)
V.V. Mariwala Visiting Professorship, ICT, India (2007)
Industrial Research Institute (IRI) Achievement Award (2007)
AIChE Fuels and Petrochemicals Division Award (2008)
W.R. Marshall Founders' Lecture, Univ. of Wisconsin (2008)
Tis Lahiri Lecture, Vanderbilt University (2008)
C. K. Murthy Memorial Lecture, IIChE (2008)
Excellence in Gas Processing Award, Annual Gas Processing Symposium, Qatar (2009)
AIChE Fellow (2009)
Pirkey Lecture, UT, Austin (2010)
National Medal of Technology and Innovation from the President of the United States of America (2010)
Hugh M. Hulbert Memorial Lecture, Northwestern University (2011)
Hess Lecture, Univ. of Virginia (2011)
AIChE Founders Award (2011)
Foreign Fellow, Indian National Academy of Engineering (2011)
ExxonMobil Visiting Chair Professor, NUS, Singapore (2011 – 2014)
Ken Nobe Founders Lecture, Univ. of California, Los Angeles (2012)
Distinguished Alumnus Award, Indian Institute of Technology, Kanpur (2012)
Member, American Academy of Arts and Sciences (2013)
Shreve Award for Excellence in Teaching, Chemical Engineering, Purdue University (2013)
Allan P. Colburn Honorary Lecturer, E. I. du Pont de Nemours and Company (2013)
Annual KAIST CBE Global Distinguished Lecturer, Korea (2013)
Fellow, National Academy of Inventors (2014)
Texas A&M University Institute for Advanced Study Faculty Fellow (2014)
Morrill Award, Purdue University (2014)
Prof. C.V. Seshadri Memorial Distinguished Lecture, IIT Bombay, India, (2014)
Distinguished Lindsay Lecturer, Texas A&M University, (2014)
TIAS Eminent Scholar Lecturer, Texas A&M University (2015)
Berkeley Lectures, Univ. of California, Berkeley (2015)
Schlumberger Lecture, Univ. of Alberta, Edmonton, Canada, (2015)
Inducted in Purdue Innovator Hall of Fame (2015)
Shinnar Lecture, City College of New York, (2016)
American Chemical Society (ACS) Award in Separations Science and Technology (2017)
Peter V. Danckwerts lecture at the 10th World Congress of Chem. Eng., Barcelona, Spain (2017)
AIChE Alpha Chi Sigma Award (2017)
Philip C. Wankat Graduate Teaching Award in Chemical Engineering, (2019)
BASF Distinguished Lecture, Wayne State University, Detroit (2022)
Spinks lecture, Univ. of Saskatchewan, Canada, (2022)
Chandrakanta Kesavan Lecture, Indian Institute of Technology, Kanpur, India (2022)
James Y. Oldshue Lecture, 11th World Congress of Chemical Engineering, Buenos Aires, Argentina (2023)
E. V. Murphree Award in Industrial and Engineering Chemistry from ACS (2024)
Computing in Chem. Eng. Award, AIChE CAST Division, (2024) (co-shared with Prof. M. Tawarmalani)
Inaugural Dan Luss Lecture, University of Houston, Houston, TX, (2025)

Youngest Ever Recipient of the Air Products' Prestigious Chairman's Award (1992)
Presidential Citation for Outstanding Achievement from the Univ. of Delaware (1995)
Institute Award for Excellence in Industrial Gases Technology from the AIChE (1998)
Clarence G. Gerhold Award, Separations Division, AIChE (2001)
Honorary Fellow, Indian Institute of Chemical Engineers (IIChE), 2001
Diamond Award for Inventor on One Hundred US Patents, Air Products and Chemicals (2001)
Member, U. S. National Academy of Engineering (2002)
BAYER Lecture, Carnegie Mellon University (2002)
Air Products' Equipment Innovation Award for APX™ LNG Process (2003)
J&E Hall Gold Medal, Institute of Refrigeration, UK (2004)
Regents' Lecturer, Univ. of California, LA (2004)
Prof. B. D. Tilak Visiting Fellowship Lecture, ICT, India (2004)
AIChE Institute Lecturer (2005)
Chemical Engineering Practice Award, AIChE (2006)
V.V. Mariwala Visiting Professorship, ICT, India (2007)
Industrial Research Institute (IRI) Achievement Award (2007)
AIChE Fuels and Petrochemicals Division Award (2008)
W.R. Marshall Founders' Lecture, Univ. of Wisconsin (2008)
Tis Lahiri Lecture, Vanderbilt University (2008)
C. K. Murthy Memorial Lecture, IIChE (2008)
Excellence in Gas Processing Award, Annual Gas Processing Symposium, Qatar (2009)
AIChE Fellow (2009)
Pirkey Lecture, UT, Austin (2010)
National Medal of Technology and Innovation from the President of the United States of America (2010)
Hugh M. Hulbert Memorial Lecture, Northwestern University (2011)
Hess Lecture, Univ. of Virginia (2011)
AIChE Founders Award (2011)
Foreign Fellow, Indian National Academy of Engineering (2011)
ExxonMobil Visiting Chair Professor, NUS, Singapore (2011 – 2014)
Ken Nobe Founders Lecture, Univ. of California, Los Angeles (2012)
Distinguished Alumnus Award, Indian Institute of Technology, Kanpur (2012)
Member, American Academy of Arts and Sciences (2013)
Shreve Award for Excellence in Teaching, Chemical Engineering, Purdue University (2013)
Allan P. Colburn Honorary Lecturer, E. I. du Pont de Nemours and Company (2013)
Annual KAIST CBE Global Distinguished Lecturer, Korea (2013)
Fellow, National Academy of Inventors (2014)
Texas A&M University Institute for Advanced Study Faculty Fellow (2014)
Morrill Award, Purdue University (2014)
Prof. C.V. Seshadri Memorial Distinguished Lecture, IIT Bombay, India, (2014)
Distinguished Lindsay Lecturer, Texas A&M University, (2014)
TIAS Eminent Scholar Lecturer, Texas A&M University (2015)
Berkeley Lectures, Univ. of California, Berkeley (2015)
Schlumberger Lecture, Univ. of Alberta, Edmonton, Canada, (2015)
Inducted in Purdue Innovator Hall of Fame (2015)
Shinnar Lecture, City College of New York, (2016)
American Chemical Society (ACS) Award in Separations Science and Technology (2017)
Peter V. Danckwerts lecture at the 10th World Congress of Chem. Eng., Barcelona, Spain (2017)
AIChE Alpha Chi Sigma Award (2017)
Philip C. Wankat Graduate Teaching Award in Chemical Engineering, (2019)
BASF Distinguished Lecture, Wayne State University, Detroit (2022)
Spinks lecture, Univ. of Saskatchewan, Canada, (2022)
Chandrakanta Kesavan Lecture, Indian Institute of Technology, Kanpur, India (2022)
James Y. Oldshue Lecture, 11th World Congress of Chemical Engineering, Buenos Aires, Argentina (2023)
E. V. Murphree Award in Industrial and Engineering Chemistry from ACS (2024)
Computing in Chem. Eng. Award, AIChE CAST Division, (2024) (co-shared with Prof. M. Tawarmalani)
Inaugural Dan Luss Lecture, University of Houston, Houston, TX, (2025)

Youngest Ever Recipient of the Air Products' Prestigious Chairman's Award (1992)
Presidential Citation for Outstanding Achievement from the Univ. of Delaware (1995)
Institute Award for Excellence in Industrial Gases Technology from the AIChE (1998)
Clarence G. Gerhold Award, Separations Division, AIChE (2001)
Honorary Fellow, Indian Institute of Chemical Engineers (IIChE), 2001
Diamond Award for Inventor on One Hundred US Patents, Air Products and Chemicals (2001)
Member, U. S. National Academy of Engineering (2002)
BAYER Lecture, Carnegie Mellon University (2002)
Air Products' Equipment Innovation Award for APX™ LNG Process (2003)
J&E Hall Gold Medal, Institute of Refrigeration, UK (2004)
Regents' Lecturer, Univ. of California, LA (2004)
Prof. B. D. Tilak Visiting Fellowship Lecture, ICT, India (2004)
AIChE Institute Lecturer (2005)
Chemical Engineering Practice Award, AIChE (2006)
V.V. Mariwala Visiting Professorship, ICT, India (2007)
Industrial Research Institute (IRI) Achievement Award (2007)
AIChE Fuels and Petrochemicals Division Award (2008)
W.R. Marshall Founders' Lecture, Univ. of Wisconsin (2008)
Tis Lahiri Lecture, Vanderbilt University (2008)
C. K. Murthy Memorial Lecture, IIChE (2008)
Excellence in Gas Processing Award, Annual Gas Processing Symposium, Qatar (2009)
AIChE Fellow (2009)
Pirkey Lecture, UT, Austin (2010)
National Medal of Technology and Innovation from the President of the United States of America (2010)
Hugh M. Hulbert Memorial Lecture, Northwestern University (2011)
Hess Lecture, Univ. of Virginia (2011)
AIChE Founders Award (2011)
Foreign Fellow, Indian National Academy of Engineering (2011)
ExxonMobil Visiting Chair Professor, NUS, Singapore (2011 – 2014)
Ken Nobe Founders Lecture, Univ. of California, Los Angeles (2012)
Distinguished Alumnus Award, Indian Institute of Technology, Kanpur (2012)
Member, American Academy of Arts and Sciences (2013)
Shreve Award for Excellence in Teaching, Chemical Engineering, Purdue University (2013)
Allan P. Colburn Honorary Lecturer, E. I. du Pont de Nemours and Company (2013)
Annual KAIST CBE Global Distinguished Lecturer, Korea (2013)
Fellow, National Academy of Inventors (2014)
Texas A&M University Institute for Advanced Study Faculty Fellow (2014)
Morrill Award, Purdue University (2014)
Prof. C.V. Seshadri Memorial Distinguished Lecture, IIT Bombay, India, (2014)
Distinguished Lindsay Lecturer, Texas A&M University, (2014)
TIAS Eminent Scholar Lecturer, Texas A&M University (2015)
Berkeley Lectures, Univ. of California, Berkeley (2015)
Schlumberger Lecture, Univ. of Alberta, Edmonton, Canada, (2015)
Inducted in Purdue Innovator Hall of Fame (2015)
Shinnar Lecture, City College of New York, (2016)
American Chemical Society (ACS) Award in Separations Science and Technology (2017)
Peter V. Danckwerts lecture at the 10th World Congress of Chem. Eng., Barcelona, Spain (2017)
AIChE Alpha Chi Sigma Award (2017)
Philip C. Wankat Graduate Teaching Award in Chemical Engineering, (2019)
BASF Distinguished Lecture, Wayne State University, Detroit (2022)
Spinks lecture, Univ. of Saskatchewan, Canada, (2022)
Chandrakanta Kesavan Lecture, Indian Institute of Technology, Kanpur, India (2022)
James Y. Oldshue Lecture, 11th World Congress of Chemical Engineering, Buenos Aires, Argentina (2023)
E. V. Murphree Award in Industrial and Engineering Chemistry from ACS (2024)
Computing in Chem. Eng. Award, AIChE CAST Division, (2024) (co-shared with Prof. M. Tawarmalani)
Inaugural Dan Luss Lecture, University of Houston, Houston, TX, (2025)