• Built the gasoline blend schedule to meet the demand for the refinery’s pipeline, marine, and truck rack movements.• Coordinated with the commercial organization to optimize the gasoline movement schedule around the refinery’s operation.• Optimized the refinery gasoline component pool, gasoline blend schedule, and refinery operation to maximize the margin of the gasoline products made.• Collaborated with the Mogas team — comprising of operations, lab, process engineering, economics and scheduling, controls systems, and analyzer representatives — to review gasoline system performance and make continuous improvements. • Wrote guidelines for and provided training to our process operators to communicate our scheduling strategy and ensure the success of its execution.• Utilized the computer programs Aspen Petroleum Scheduler and Aspen Multi-Blend Optimizer to deliver insight and push the minimization of inventory and product specification giveaway.

• Drafted project application for California’s Low Carbon Fuel Standard (LCFS) Refinery Investment Credit Program (RICP) for an energy efficiency project to secure nominal LCFS credit incentive of 25,000 metric tons CO2e/yr. Application process included analyzing large data sets to quantify anticipated project CO2 emissions reductions.• Identified opportunity to switch to a different PG&E electric tariff option and performed economic analysis and data visualization to convince company leadership to make the switch, saving an anticipated $1-3MM/yr in electric cost.• Built natural gas and electricity forecasting spreadsheet tools to model and predict refinery’s natural gas and electricity consumption based on planned production rates and to aid planning of abnormal operating situations.• Facilitated and managed cross-functional teams to define scope for mitigating $50MM utility supply threats to the refinery by assessing cost, benefit, and HSE impacts. Presented scope options to senior refinery leadership.• Improved refinery energy efficiency by tracking energy KPIs and meeting monthly with operational leadership to drive action towards energy conservation, saving $3MM/yr total in energy cost.• Supported hydrogen plant divestment project by serving as a member of the due-diligence team, managing certain aspects of project implementation, and providing feedback on the draft product service agreement contract.

• Drafted project application for California’s Low Carbon Fuel Standard (LCFS) Refinery Investment Credit Program (RICP) for an energy efficiency project to secure LCFS credit incentive. Application process included analyzing large data sets to quantify anticipated project CO2 emissions reductions.• Identified opportunity to switch to a different PG&E electric tariff option and performed economic analysis and data visualization to convince company leadership to make the switch, saving an anticipated $1-3MM/yr in electric cost.• Built natural gas and electricity forecasting spreadsheet tools to model and predict refinery’s natural gas and electricity consumption based on planned production rates and to aid planning of abnormal operating situations.• Facilitated and managed cross-functional teams to define scope for mitigating $50MM utility supply threats to the refinery by assessing cost, benefit, and HSE impacts. Presented scope options to senior refinery leadership.• Improved refinery energy efficiency by tracking energy KPIs and meeting monthly with operational leadership to drive action towards energy conservation, saving $3MM/yr total in energy cost.• Supported hydrogen plant divestment project by serving as a member of the due-diligence team, managing certain aspects of project implementation, and providing feedback on the draft product service agreement contract.

• Collaborated with Infinite Cooling’s CEO and Shell’s Projects and Technology group to develop an economic analysis for piloting Infinite Cooling’s water recovery technology to reduce cooling water tower evaporative losses.• Spearheaded multifaceted efforts, including control system changes and reliability workshops, to decrease ammonia slip emissions at the CO Boilers by 50% and save $30K/yr in chemical cost.• Reengineered a liquid lime temporary injection skid that successfully passed technical peer review with the aim of reducing reliability issues with the current facility.• Authored technical study on CO Boiler opacity exceedance incidents that included three process safety recommendations to prevent similar incidents from reoccurring in the future.• Developed a 650# steam sampling plan to comply with Downstream Manufacturing standards and to facilitate implementation with other in-scope operating departments.• Performed technical study to quantify Reverse Osmosis project reliability benefit, worth $1.2MM/yr, due to improved boiler feed water and steam quality.

• Orchestrated plan to restart the Distillate Saturation Unit after a process upset, which included a fitness-for-service evaluation, a temporary Management-Of-Change form to safeguard unit while repairs were made, and a technical study to identify and prevent root cause with 8 process safety recommendations.• Championed replacement of the SCOT4 catalyst with a new lower temperature replacement catalyst, saving $600K/yr in energy cost due to reduced steam consumption.• Designed test run and performed linear regression on the results to quantify oxygen savings project opportunity at Sulfur Recovery Unit 3, identifying a $175K/yr value.• Troubleshot high total residual sulfur issue in Sulfur Recovery Unit 4 that removed a capacity constraint worth $1.25MM/yr.• Determined the root cause of high differential pressure in a hydrogen plant and co-engineered the solution that eliminated a reliability issue worth $1MM/yr.

• Determined proper purge rate for flare system to install low flow alarm and complete PHA item.• Collaborated with Projects and Technology group to determine emergency purge needs for flare system and nitrogen purge requirements for flare entry.• Troubleshot high fuel gas pressure on a stripper reboiler as part of a test run to increase capacity in a hydrotreating unit. Recommended installation of coalescers on fuel gas line to prevent burner tip fouling.

• Served as the tool owner for 7 unique Thin Films Metrology process tool technologies and 30 tools in total.• Utilized Statistical Process Control (SPC) and Best Tool Matching to troubleshoot tool issues, ensure tool reliability and uptime, and drive continuous improvement.• Developed and edited tool recipes for new and existing products to validate product quality.• Designed and performed an experiment to change the monitoring method for the KLA Quantox.