Process Intensification
Re-engineering reactions into micro- and milli-scale geometries — doing more chemistry in less space, with less energy.
Chemical & Biochemical Engineering · RGIPT
Dr. Koushik
Guha Biswas
Associate Professor, re-engineering chemical processes to be smaller, faster, and far more sustainable — at the scale of a millimetre.
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01
A researcher of small systems
About
A researcher of small systems
with outsized impact.
Dr. Koushik Guha Biswas develops energy-efficient chemical engineering technologies through process intensification, harnessing miniaturized reactors, coiled flow inverters, and nanofluid-enhanced transport processes to advance sustainable manufacturing, carbon utilization, and clean energy systems.
Trained at IIT Kharagpur (Ph.D. and M.Tech, Chemical Engineering) and Heritage Institute of Technology, Kolkata, he joined RGIPT in 2015 and was elevated to Associate Professor in 2023. He now also serves as Dean of Student Affairs.
Research Lab: Fluid Mechanics, Multiphase Flow, CO₂ Conversion, Biofuels, and Nano-Biotechnology — working at the intersection of process intensification, multiphase transport phenomena, carbon capture and conversion, biomass valorization, and sustainable energy systems, with active research spanning advanced reactor technologies, nanomaterials, and next-generation fuel production while supervising doctoral researchers in these emerging areas.
343
Citations
Google Scholar · 2026
11
h-index
i10-index also 11
41
Total papers
24 journal + 17 conference
5
PhD scholars
+ M.Tech & B.Tech projects
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Advancing Six Frontiers of
Research
Advancing Six Frontiers of
Sustainable Chemical Engineering.
CO₂ Capture & Conversion
Up to 98% CO₂ absorption in coiled flow inverters; mixed-amine and nanocellulose-aided routes for point-source CCUS.
Multiphase Flow
Hydrodynamics of liquid–liquid and gas–liquid flow in reduced-dimension conduits — bends, coils, and slug-flow regimes.
Nanofluid Mass Transfer
Non-Newtonian nanofluids delivering up to 15-fold enhancement of interfacial mass transfer in microchannels.
Biofuels & Biogas
Flow synthesis of biodiesel from waste cooking oil; biogas upgradation by CO₂ removal using water- and lignin-based solvents.
Coiled Flow Inverters
Helical reactor design for gas–liquid reactions, specialty-chemical synthesis, and continuous separation at scale.
OngoingSustainable & Point-Source CO₂ Capture: Role of Hydrodynamics on Gas–Liquid Reaction
UPCST · 3-yearCompletedLiquid–Liquid Flow through Small-Diameter Conduits — Enhanced Mass Transfer & Kinetics
CSIR · 2019–23InstituteHybrid Digestor-based Biogas Production from Agricultural Waste
RGIPT IRG · 2021–24InstituteProcess Intensification for Biphasic Flow in Cost-Effective Micro-Reactors
RGIPT IRG · 2018–20
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Research supervision
Research Group
Research supervision
& mentorship.
Pooja Jaiswal
Aug 2018 – July 2022CompletedRegular
Pravesh N Singh
Aug 2021 – PresentPart Time
Anikesh Tripathi
Aug 2022 – PresentPart Time
Swapna Patel
Aug 2023 – PresentRegular
Priyanka Agarwalla
Aug 2023 – PresentFull Time External, HPCL
Uttam Kumar
2016 – 2018National Award for Best M.Tech Thesis by ISTE
Raman Shukla
2020 – 2022
Yogendra Kumar
Feb 2020 – Sep 2021CSIR
Sachin Kumar
October 2024 – PresentUPCST
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A decade in the
Teaching
A decade in the
lecture hall & lab.
Faculty In-charge of the Fluid Flow & Mechanical Operation Laboratory.
Fluid Mechanics
Transport Phenomena
Fluid Flow Operations
Chemical Process Technology
Advanced Transport Phenomena
Process Instrumentation
Numerical Reservoir Simulation
Process Intensification
Waste to Energy Conversion
Heat Transfer Operations
Reaction Engineering Laboratory
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Awards, fellowships
Recognition
Awards, fellowships
& leadership.
2026
Early Career Award
ACMS 2026
2019
ISTE National Award — Best M.Tech Thesis Supervisor
Indian Society for Technical Education
2014
Teaching Assistantship Fellowship
IIT Kharagpur
2010
National Doctoral Fellowship
MHRD, Government of IndiaProcess Intensification for Multiphase Flow Separation via Energy-Efficient Methods
Award Lecture · ACMS 2026Intensifying Separation Processes by Energy-Efficient Methods for Multiphase Flow Systems
Chemcon 2024 · NIT JalandharProcess Intensification in Micro-to-Nano Channel Geometries
ICNM 2017 · KottayamSession Chair — Catalysis & Advanced Chemical Engineering
Chemcon 2023–24 · ACMS 2026
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Institutional leadership
Administration
Institutional leadership
& service.
DeanStudent Affairs
April 2026 – PresentChairpersonStudent Fee Management Committee
April 2026 – PresentChairmanCommittee for Institute Brand Building Competition
April 2026 – PresentChairmanSocial Media Committee
April 2026 – PresentMemberInstitute Senate Committee
April 2026 – PresentMemberInternal Complaint Committee
May 2026 – PresentMemberApex Committee
April 2026 – PresentMemberInstitute Advisory Committee
September 2020 – PresentChairmanCouncil of Wardens / Head Warden
September 2020 – March 2026ChairmanUndergraduate Admission Committee
December 2018 – November 2024, August 2025ChairmanHostel-level Anti Ragging Committee
September 2020 – March 2026ChairmanHostel-level Disciplinary Committee
September 2020 – March 2026ChairmanMess Committee
July 2019 – August 2021ConvenerStudent Fee Management Committee
November 2025 – March 2026MemberCouncil of Wardens / Warden
February 2018 – September 2020
07
Contact
Let's intensify
a process.
Rajiv Gandhi Institute of Petroleum Technology,
Academic Block 2, Room 510, Jais, Amethi, UP 229304
Academic Block 2, Room 510, Jais, Amethi, UP 229304
