Sagnik Dutta

Mozambique LNG Project Process Engineer

• Work as a team to deliver projects, with respect to industry leading standards as benchmarked in cost competitiveness, energy efficiency and GHG emissions reduction levels.
• Evaluated industry wide available competitive LNG technologies (SMR, C3MR) while finalizing the LNG liquefaction licensor for the project to ensure seamless integration aligning with the project objective while meeting the GHG emission credits set as well as ensure cost competitiveness.
• Perform economic evaluation (NPV analysis) among various dehydration and CO2 treatment licensors (UOP, BASF) to select the most cost competitive option, which at the same time meets the agreed SPA guidelines of the final LNG product with respect to CO2, H2O and heavies specs.
• Carry out qualitative review of process deliverables (PFDs, HMBs, utility summaries, process description, and process study reports) received from licensors.
• Participate in bi-weekly touch points with licensors to convey ExxonMobil expectations and scope of project and driving project deadline to meet annual/ quarterly targets for FEED readiness.
• Participation in technical evaluation of licensor selection process during Pre-FEED/ Concept Selection Stage.
• Participation in HAZOP study, ENVID review, CO2 abatement philosophy review as a part of GHG reduction philosophy.
• Perform qualitative analysis of cost differences developed between licensor and in-house cost team
• Optimize simulation models in Aspen HYSYS to match and identify differences with licensor HMB values.
• Participation in FEED ITT (Invitation to Tender) Scope of Work and Design Basis document preparation for developing basis and outlining the scope of process engineering deliverables during FEED which has been shared with FEED bidders.
• Preparation of technical presentations for conveying basis of licensor selection strategies, CO2 abatement philosophies adopted, feed composition change basis and impact in LNG production in front of senior leadership team.
• I was responsible for optimization and correction of plot plan and pipelines which were shown on interconnecting piperack developed by Pre-FEED contractor during Concept Select Stage, alongwith the Layout and Safety team to best optimize the Pre-FEED costs of the project before start of FEED.
• I was responsible for optimization and recalculation of slug catcher designs (a significant cost contributor in LNG technology) which was originally designed by Pre-FEED contractor. The optimization efforts led to significant reduction in plot areas and dimensions of the slug catcher.

Baton Rouge PolyOlefines Plant Flare Gas Recovery Project Lead Designer

• I am responsible for development of project roadmap and coordination with inter disciplines (Electrical, Procurement, Mechanical, Instrument, Construction) to drive project towards completion of lead case/ concept selection before start of FEED.
• I am responsible for preparing simulation model and HMB balance to recover flare gas from reactor outlet to eliminate continuous flaring as well as capture value by recovering the flare vent gas before re-utilizing the streams and meet the GHG goals for the facility in the process.

• I was responsible for preparation of preliminary equipment specifications and utilities, as per customer utility guarantee.
• I was responsible for preparation of Material Selection Diagram & operating manuals as per Topsoe Standard.
• I was responsible for evaluation of exchangers, pumps, columns, vessels & PSVs in revamp studies.
• Conducted internal P&ID & MSD reviews.
• Part of project execution team of Redrock Biofuels LLC, USA HTCR H2 project, Helvoil, USA H2 BridgeTM HTCR project, Liquid Wind Green Methanol project.
• I have been responsible for conducting reviews and guiding engineers (columns, vessels, pumps, compressors, reactors, heat exchangers) in preparation of equipment specifications before finalization of the specifications before release.

• I was responsible as a project design engineer for participation in Project kick-off meetings, understanding customer requirements, and noting down any deviations, as per customer request from standard UOP design guidelines.
• I was responsible for preparation of UNISIM simulation models and optimizing models, based on internal yield estimate data and other customer specific requirements, like utility guarantees and product specification guarantees, maximize heat integration between process streams to minimize utility consumption; finalization of final product flow control schemes in PFDs; preparation of material selection diagrams.
• I was responsible for organizing internal and customer process design review meetings based on finalized PFDs, note down any additional customer requirements, and reason out the basis of standard UOP design practices, if required, to justify process design queries.
• I was responsible for optimization of hydraulic pressure drops in piping, reactor, compressor & pump circuits, minimization of hot volume lengths in heater outlet pipe segments.
• I was responsible for preparation of preliminary equipment specifications (for e.g., vessels, columns, heat exchangers, air coolers, rotary equipments, pressure relief valves) and utilities, as per customer utility guarantee.
• I was responsible for organization of internal and customer P&ID reviews, based on final drafted P&IDs, discuss UOP design guidelines with customer.
• Perform thermal rating of exchangers with respect to As-Built exchanger geometry based on revamped process conditions, check for adequacy of column trays & packing with respect to As-Built geometry based on revamped flow rates (look for opportunities to maximize tray efficiency within existing column diameter).
• I was responsible for coordination with Project Management team and Equipment Specialists, before final release of design package to customer, ensure strict compliance to Project OTTR guidelines, as well as, adhere to UOP quality standards.
• I was responsible for project execution of three PDH Technology projects, M/s Sonatrach DETAL unit project, as well as three revamps projects in Olefins and Aromatics technology.

• I was responsible for process monitoring, product and utility quality deviation monitoring and taking necessary corrective actions.
• I was responsible for review of hazards and risk assessment with respect to Reliance safety standards, in all day-to-day activities. Experienced in handling various critical plant emergency situations.
• I had to ensure plant day-to-day operating parameters and KPIs (Key Performance Indicators) lie within the RIL IOM (Integrated Operations Management) window, based on the Shell ESP (Ensure Safe Production) model.
• I was responsible for daily review of Alarm Rationalization and ODR (Operator Driven Reliability) data filled by the operators; take corrective actions and plan jobs, based on the deviations noted in the ODR readings.
• I was part of the team designing & delivering HSE Culture Transformation modules for Dahej Manufacturing Division, addressing areas of improvement for Site Leadership and Asset Facing Employees.
• I was responsible for daily review of plant interlocks bypass status in IBMS (Interlock Bypass Management System).
• I was responsible for weekly job planning and review with all concerned maintenance departments. Discussion and review of planned shutdown job scope and necessary inventory requirement, in consultation with the maintenance team.
• I was responsible for SOP (Standard Operating Procedure) preparation, validation and imparting training to all concerned stakeholders (panel and field operators, contract workers and maintenance engineers).
• I was responsible for participation in plant level PHA (Process Hazard Analysis) review, PSSR (Pre-Startup Safety Review) of newly installed equipments and units, plant level SIL (Safety Integrity Level) review on an annual basis.
• I was responsible for biannual review of RA procedures as per plant job scope, and participation in HAZID (Hazard Identification) and HAZOP study in the plant. Detailed review of RA of critical planned activities (for e.g., work at height- above 15 meters, confined space entry, hot works). Member of team conducting internal safety audits on an annual basis,
• I was responsible for oversee day-to-day shift activities and ensure safe execution of all critical field activities, as per SOP and strict compliance to PTW (Permit to Work) system.
• I have led the team assigned for commissioning and safe execution of J3 PX4 Cryogenic Ethylene Tanker loading facility, HP Ethylene Supply Project to M/s Anushakti and Ethylene Tower Tray Replacement job.
• I was part of the team that had supervised the safe execution of all jobs in December, 2016 CAPEX related shutdown of EPRU and Gas Cracker plant for Ethane Feed Flexibility project. I have also led the team assigned for safe execution of HP Flare Tip Replacement job, in OSBL (Off-Site Battery Limit) plant.