1. Shreyas Sabnis
Name: SHREYAS S SABNIS
Date of Birth: 1959
Citizenship: India
Previous Designation Senior Process Engineer –Qatar Petroleum
Current designation Senior Process Engineer – GASCO, UAE
Contact Details: shreyas_sabnis@yahoo.co.in shreyas_sabnis@hotmail.com
Mobile - After June 1: 00919920686006, 00918976250124
Till June 1 : 00971569380876
Joining period: After June 1, 2016
Education:
M. S. in
Chemical Engg.
1984 Illinois Institute of Technology,
Chicago. U.S.A.
All ‘A’ Grades
Bachelor of
Chemical Engg.
1981 ICT Mumbai, [earlier University
Dept. of Chemical Technology,
Bombay] UDCT
Ranked 4th
in
University, First
class distinction
Experience: Total 30 years Process Engineering Design at
various levels. Also significant HSE responsibilities.
Career Summary
● Project experience of Oil & Gas processing, refinery, petrochemicals, fine
chemicals covering Front End Engineering Design (FEED), detailed
engineering (process), procurement, commissioning aspects as well as
feasibility studies, proposals, cost estimates. Defining engineering contract
scope. Guided process engineers’ teams.
● EPIC contract definitions, EPIC tender bid evaluations and order
recommendation- including licensed processes [and utilities].
● Above project work carried out for reputed companies / consultants : Qatar
Petroleum / Uhde / Larsen Toubro / ABB, also involving engineering co-
ordination with Kvarner Powergas, Lurgi, Petrofac.
● FEED and EPIC development of Licensed units Amine / Sulfur recovery/
Tailgas treatment with Licensors Worley Parsons and Elf (Prosernat)

2. Shreyas Sabnis
● Extensive work done on steady state Process simulation : Hysys, Aspen
Plus and ProMax. Also, PipePhase, Flarenet, HTFS, HTRI.
● Hands-on experience and formal training on dynamic simulation: ABB-
Simconx
and Hysys.
● Safety Function: Conducted hazop reviews. Close out and implementation
of recommendations. Quantitative Risk Analysis (QRA) report reviews.
Safety Integrity Level studies, Toxic gas dispersion analysis reviews.
● Enviromental activity: ISO 14001 certifications development, Env. Impact
assessment (EIA), Enviromental clearances, waste water treatment engg.,
Flares systems engg. in detail.
● Work carried out as per International standards e.g. API, Shell DEP
● Training and development of junior process engineers.
● Experience of guiding team to achieve timely results.
Experience summary of Oil & Gas, Refinery:
o Engineering co-ordination of execution of various FEED and EPIC NGL
projects by deputation to Contractor’s design offices.
o FEED & EPIC of Acidgas removal, SRU, Tailgas treatment unit [licensed
processes]
o Detailed work on safety relief valves of NGL plants including cryogenic NGL
extraction unit. Relief cases and load calculations as per API 520/ 521.
Flare relief network analysis on Flarenet. Blowdown studies.
o Basic engineering (FEED) of NGL fractionation processes including cryogenic
process, HAZOP reviews and close-out. Merox unit, amine units (Shell
ADIP). Duty specs for glycol unit, mol. sieves.
o Refinery Upgrade feasibility study including Crude distillation simulation.
Detailed engineering of hydrotreater, DHDS, Naphatha stabilizer units.
o Various revamp jobs involving data sourcing of current plant, adequacy
checks for new process conditions to arrive at plant modifications required.

3. Shreyas Sabnis
Experience Details as follows: (30 years)
GASCO UAE (2016- present):
Profile held : Senior Process Engineer {PMC team} for EPC of sour gas treatment
project. {Extremely fast track EPC project of Pipelines revamp and new gas sweetening
unit and filtration units}
Project objective: To build ability to supply GASCO gas to Fujairah power plant, in case of
outage Dolphin gas from Qatar. GASCO gas being sour needs sweetening, before introducing
gas into the sweet gas line which normally operates at high pressure. Needs careful hydraulic
study of complicated gas pipeline network.
My key activities {EPC detailed engineering} :
For solid catalyst based H2S removal unit: datasheets, bid evaluations including guarantees.
Similar activities for depth cartridge type gas filters.
Pipeline hydraulic studies – steady state and transient analysis, P&IDs, HAZOP review.
Depressurisation study. Vent gas dispersion study.
Philosophy documents: operating, start-up shutdown, commissioning. Safety memorandum
Utility and chemical summaries.
Aligning above documents as per Shell DEP / GASCO design specifications, as applicable.
Qatar Petroleum, Doha (2002 – 2015)
Profile held : Senior Process engineer for revamp of NGL plants and new projects.
Gas sweetening and Sulfur Recovery Project (Feasibility Study, FEED, EPIC)
An environmentally driven project including licensed process:
o New Acidgas removal unit & Glycol dehydration unit for Khuff pipeline gas
o New Acidgas Compression unit and Utilities
o Upgrading SRU of NGL complex to 99+ % recovery, involving:
o New acid gas enrichment unit & Tail gas cleaning unit, utilities, flare
My activities:
To assess completeness of feasibility study carried out by Totalfina.
To prepare Scope of Work for FEED co-ordinating all discipline inputs. Ensuring contractual
aspects of Process Licensor guarantees and licensor’s basic engg. package. Detailed bid
evaluation of FEED tender and making bid evaluation – order recommendation. Handled
revision in gas forecast.
FEED execution: Deputed to WorleyParson’s UK office [process licensor and FEED
contractor] for engineering coordination of Sulfur recovery Upgrade project, involving new
Tailgas treatment unit (TGTU). Document reviews, Hazop participation, Hazop closeouts. Co-
ordination with QP Operations for implementation of QP procedures, QP standards into
project documents.
EPIC tendering: Scope of work preparation, resolving bidders’ technical queries with FEED
Contractor, bid evaluations, technical recommendation

4. Shreyas Sabnis
EPIC detailed engg.: Camped at Contractor (Petrofac’s) Sharjah office to lead and guide the
Contractor’s team to develop engineering meeting QP tender requirements of quality, QP
standards, Project objectives and Operational/ safety requirements.
o Task was achieved by checking contractor’s engg. deliverables e.g. P&IDs, PFDs,
Mass balances, datasheets, specifications.
o Addressing any disputes regarding Contractual Scope requirements.
o Conducted Design review providing necessary inputs about existing SRU plant
information and specific details of Worley Parsons FEED development related to any
particular subject.
o Conducted HAZOP reviews and facilitated close-outs, resolving any disagreements.
o Simulated sulfur recovery units on Promax for assisting engineering.
EPIC construction commissioning support and handling deviations from specs
NGL complex revamp-RAG Utilisation Project (Front End Engg Design):
Rich Associated Gas Utilisation project consisting of revamp of various gas stripping units,
NGL fractionation units, product treatment units (sulphur removal) cryogenic separation units
as well as gas transportation pipelines.
My Responsibilities: (deputed to FEED contractor’s UK and UAE offices)
Coordinated process engineering activity of FEED contractor Petrofac in terms of checking
technical correctness, focus of project objectives, providing guidance wrt following :
-Simulation models and resulting PFD heat material balance for NGL separation and
fractionation units. Provided guidance in terms of using proper column tray efficiencies,
product specifications criterias, recoveries etc.
-Based on firmed up heat and material balance assess adequacy of existing equipment
resulting in adequacy reports.
-Checked and corrected P&IDs, equipment datasheets. Instrument and controlvalve
datasheets.
-Provided guidance in making flare load summaries for all NGL plants under revamped
condition.
-Prepared Scope of Work for EPIC tender covering all revamp modifications.
-Scope of work was finalized for Process licensors (Shell Global and UOP) for
arriving at sulphur compond distribution in various products propane, butane etc. by
simulation.
-Assessing existing ADIP, Merox and Mol. Sieve units vis-a-vis new duty for revamp condition
and recommending modifications.
-Provided interface with QP operations / Petrofac to facilitate above work of Licensors.
-Conducted HAZOP reviews providing guidance and engineering inputs. Guided formulation
of emergency shutdown and blowdown philosophy, corresponding cause-and-effect diagrams.
-Optimisation of Propane refrigeration system including sizing of Knockout drums as per Shell
DEP, sizing of recycle and quench loops.
-Detailed Pipephase simulations were carried out for 200 km gas feed pipeline in order to
determine liquid hold up and slug catcher requirement.

5. Shreyas Sabnis
Flare Mitigation & Liquid recovery Project for NGL plants (EPIC)
Environmentally driven project consisting of New smokeless flares combined for the NGL
plants and gas pipelines. Burnpits are eliminated, plant facilities added for recovery of
hydrocarbons sent to burnpits. Gas recovery and compression systems added for mitigation of
operational flaring.
My activities: (deputed to FEED and EPIC contractor’s UK and UAE offices)
FEED related:
Addressed and compiled Revisions required to the already completed FEED in order to make
it suitable for revised gas feed data of plant. Also, optimized the FEED done for recovery
systems. Addressed all aspects in EPIC tender.
EPIC Tender related:
EPIC tender definition detailing scope of work including contractual aspects of guarantees.
EPIC bid evaluation following clarifications. Inter discipline co-ordination, Tender evaluation
and recommendation report.
Detailed engineering : Guiding the Contractor’s engg office about following (camped at
Petrofac’s Sharjah office) :
❑ Hazop review and close-out
❑ Relief valve sizing, control valve sizing
❑ Blowdown simulations as per API 521 and blowdown valve sizing (including sizing for
supercritical fluid conditions)
❑ Env. Impact assessment (EIA), Quantitative risk assessment study, air dispersion
modeling for flares, thermal radiation calculations for flares.
❑ A detailed hydraulic analysis (Hysys : Flarenet) was carried out for the flare network of
the NGL plants simulating all relief scenarios for various firezones of the large network
(60 relief valves and 10 blowdown valves). The simulation output was used to verify /
update flare piping design.
Facilitated the Contractor to effectively conclude all above by detailed reviews / checks, co-
ordination with Contractor and QP Operations department.
NGL Extraction Plant : Performance Testing : Interpretation of plant data to identify plant
bottlenecks. Using Hysys simulations decide operating changes required.
Refinery Upgrade Feasibility Study: Crude distillation unit and Naphtha stabiliser
simulations. Review details of Licensed units FCC, Hydrotreater, SRU and their integration
and overall material balance.
Acid gas removal unit (AGRU) troubleshooting: Facilitated detailed systematic review by
Petrofac to analyse and conclude on following problems associated with existing AGRU
processing feedgas to NGL cryogenic plant.
o Potential hydrocarbon carry-under from absorber column resulting in excessive
hydrocarbon release from downstream amine flash drum.

6. Shreyas Sabnis
o Vibration due to 2-phase flow in amine feed pipe to amine regenerator.
Engineered the modification required to overcome above problems
Coaching Qatari Engineering Graduates:
Conducted structured training of Qatari Chemical Engineering graduates.
● Planning, structuring and detailing of 4 year training program leading the graduates to
Sr. Engineer level.
● Technical guidance, facilitating professional seminars, progress monitoring.
Larsen & Toubro Ltd. EPIC division, India (1998 – 2002)
Manager - FEED group
o For proposed hydrotreating and Hydrogen Units of IOCL Mathura refinery:
▪ Coordinated prebid process engg. activities of engg contractor- equipment
datasheets, heat exchanger ratings, enquiry for liquid N2 unit
▪ Provided process engg inputs for EPIC bid based on basic engg. packages of
licensors [IFP and Technip respectively]. Carried out bid evaluation for liquid
Nitrogen unit.
o Trained on SIMCONx
Dynamic Simulator of ABB-Simcon at ABB's Houston, USA
office. Created and tested a dynamic simulation model for 3 stage centrifugal
compressor based instrument air system of ARAMCO's Hawiyah gas plant. This model
on SIMCONx
was for Operator Training Station (OTS) and involved complex controls.
o Prepared agreement of co-operation with dynamic simulation technology provider for
joint execution of projects involving such models. Participated in business
development. Evaluated Hysys dynamic simulation package by simulating naphtha
stripping section of HPCL- Vaizag.
o For a proposed 560,000 TPA PVC plant of M/s. Chemplast, co-ordinated pre-bid
process engineering activity between the process licensor and detailed engineering
contractor. Made technical comparison of offers received for package units.
o Guided the FEED team during preparation of design manuals and P&ID manual, as
well as during development of in-house computer programs for engineering
calculations.
o Thermal design of heat exchangers (crude preheat train, product coolers, condensers
reboiler) using HTFS software package. PINCH analysis of crude train.
o Simulated Crude Distillation Unit using Aspen Plus and compared results with Sulzer
design. Also simulated sour water stripping and amine absorption sections.
o Prepared ‘Departmental Activity Control Procedure’ for FEED in line with ISO 9001
and ISO 14001. Responsibilities include making the team members familiar with ISO
requirements and ensuring proper implementation of the Quality and Environmental
Management Systems throughout the group. Played major role in obtaining ISO 9001
certification.

7. Shreyas Sabnis
o Prepared necessary ISO14001 documentation for Diesel Hydrodesulfurization and
SRU of HPCL, Vaizag. Discussed the above documents with Lloyd Registry auditors,
based on which ISO 14001 certification has been obtained
Uhde India Ltd. {Subsidiary of Uhde GmbH) (1992 – 1998) Chief Engineer
{Company profile : Detailed engineering consulting}
▪ Lead Engineer for BASF’s Rs. 1500 million grassroot project of Dyes & Dispersion
manufacturing complex at Mangalore and subsequent Rs. 300 million expansion. Project
also included utilities, captive DG power, effluent treatment plant, storage and handling
of Butadiene as liquified compressed gas.
- Detailed Engineering: P & ID’s, Equipment specifications, datasheets etc.
- Procurement of process packages and utility packages
- Commissioning of packages and rotating equipments. Startup trials
- All the above activities were carried out as per quality procedures of ISO 9001.
▪ As lead engineer for Colourchem’s Reactive dyes expansion at Roha, performed similar
design activities as listed above.
▪ Revamp project of Supreme Petrochem’s polystyrene plant, Nagothane:
- Detailed calculations of energy balance and utility distribution to check adequacy of
existing utilities for revamped production. Procurement for brine refrigeration.
▪ Detailed prefeasibility study for proposed Rs. 15 billion project of IOCL for manufacture
of 70 TPH of PTA (purified terephthalic acid) including steam turbine based captive
power generation plant : prepared utility summary, Specifications, Feasibility study report
▪ Carried out thermal design of shell & tube heat exchangers, thermosyphon reboilers for
revamp of NOCIL’s EO plant using HTFS software package.
▪ Conducted training for two batches of graduate trainees
▪ As Department Representative, ensured quality by conducting audits, training etc.
Process Design Engineer, Glaxo India Ltd., (1989 – 1992)
- Basic engineering package preparation for bulk drug plants, Hazop studies
- Detailed engineering, implementation and commissioning of bulk drug plants
Sr. Engineer, EPC contracting company India (1988 – 1989)
- Detailed engineering, procurement and project co-ordination for Naphtha storage
and handling system for NTPC’s Anta Power Plant built by ABB
Bulk drug manufacturing unit, India (1986 – 1988)
Fairchild Semiconductor, U.S.A. (1984 – 1986)
Illinois Institute of Technology, U.S.A. (1981 – 1984)Research on a project by AMOCO.

8. Shreyas Sabnis
Overall Simulation Experience:
Simulator Experience
Hysys Natural Gas processing: Natural gas stripping trains, NGL fractionation
plants, propane refrigeration, cryogenic turbo-expander demethaniser
process
Aspen Plus Refinery : Crude distillation unit – atmospheric distillation, crudeoil
preheating train
Aspen Plus Refinery: Sour water stripping unit, amine regeneration unit
Hysys Plant Refinery : Dynamic simulation of naphtha stripping unit
Promax Simulations of Sulfur recovery units and amine absorption units
ABB SImconx
Utilities: Dynamic simulation of Air compressor system including controls
Pipephase Natural gas transportation pipelines
TGNET Natural gas network hydraulics : steady state, dynamic
Pipesim Oil and gas pipelines analysis
Flarenet Flare network of NGL fractionation plants
Pipenet Gas and Liquid pressure drop calculations
Design
software
HTFS Heat exchanger designs of various shell and tube exchangers, including
thermosyphon reboilers
HTRI Heat exchanger designs of shell and tube exchangers