Julius Choi Email & Phone Number

Sacramento, California, United States

Søborg, Capital Region, Dk

■ Brought the ability to develop downstream processes and evaluate innovative solutions for customers by procuring and setting up equipment ■ Enhanced operational capabilities for testing and sample production by leading a contract with an external lab ■ Prepared technical reports and presentations to communicate progress and resource needs to stakeholders.Data analysis■ Worked on developing a new Python script to identify DNA sequences to design primers.

Sacramento, Ca, Us

■ Developed and scaled up new technology by managing project budgets and schedules and collaborating with multidisciplinary teams.■ Established a pilot lab by procuring and validating equipment that met the specifications.■ Developed and validated economic processes by testing various equipment like reactor, filtration, centrifuge, resin, etc., applying the design of experiments and conducting data analysis. ■ Enhanced process efficiency economics by optimizing process conditions through process modeling using SuperPro, Python and Excel and data collection.■ Trained engineers and operators for equipment operation at lab and pilot scale. ■ Monitored pilot plant operations and analyzed process data to ensure alignment with sustainability objectives and program performance metrics.■ Coordinated with stakeholders, including vendors, external labs, and investors, to ensure the meeting of project milestones.■ Authored technical documentation and collaborated with consultants and stakeholders to confirm federal regulation compliance and to ensure smooth technology transfer to CMOs and the GRAS dossier preparation■ Surveyed scientific literature and technical reports to follow up on industry and scientific community trends and evaluate new technologies.

Process development■ Worked on the development of biomass pretreatment method by testing ensile biomass, fungi-based composite, ionic-liquid, solvent/product recovery process and utilizing Parr, HPLC, GPC, GC/MS, TGA, Viscometer ■ Contributed to industrial partners’ ongoing commercialization of the technology by identifying the best solvent, optimizing the process conditions and conducting data analysis■ Surveyed the related technology to perform scientific research on biofuel production processes and design and set up new reaction equipment at the lab scale■ Conducted risk assessment and prepared safety documentation to meet compliance requirements from government agencies.Data analysis■ Statistically analyzed the experimental data to investigate the effect of process parameters on production yield using JMP, Excel and python■ Developed Python scripts to extract data from PDF generated by large samples for summarizing and visualizing data to reduce data analysis time

Albuquerque, Nm, Us

Earth Energy Renewables was a start-up company with the technology to convert municipal waste to biochemicals. My responsibilities were the operation of a pilot plant and the preparation of plant design packagesProcess engineering and development■ Prepared plant design packages for designing a demonstration plant from pilot-scale data using a scaling factor of 18, in collaboration with an EPC■ Conducted process modeling and simulation using Excel and AspenPlus, leading to equipment design and selection, successful equipment sizing and performance prediction to meet process requirements and product specifications■ Completed successful pilot plant operation, securing a $30 million investment by monitoring the process and addressing operational challenges to reduce downtime and increase productivity.■ Reduced testing expenses by 100 times by developing ion contents analytical methods■ Improved process performance by designing and conducting experiments in both laboratory and pilot plant, collaborating with chemists■ Prepared and reviewed regulatory and operational documentation to adhere to environmental and safety standards.■ Completed a HAZOP of the process with the rest of the engineering team. ■ Collaborated with researchers and industrial partners to evaluate processes for bio-based products, leading to peer-reviewed journals.Data analysis■ Utilized the Excel spreadsheet to gather data from the plant, analyze mass and heat balance and validate plant operation

■ Collaboration work for development of a pilot-scale activated carbon production process from biochar using steam activation resulting in 5kg/h production rate enough for investigation of the possibility of new products for soil amendments and wastewater treatment application

College Station, Tx, Us

Process Development and R&D■ Designed, constructed, and operated lab-scale and pilot-scale equipment integrated with data acquisition and equipment control programed by Arduino for developing new chemical processes.■ Conducted data analysis, process modeling and kinetic modeling using python to improve understanding of the effect of process parameters on the results. ■ Collaborated with researchers in chemistry to produce hydrogen using photocatalytic reaction, contributing to research advancement in the field. ■ Trained visiting students and professionals from diverse backgrounds for several research projects, resulting in well-maintained laboratory operations and the completion of their theses.■ Conducted scientific research on developing new processes to produce bio-oil, hydrogen and gas membranes, resulting in peer-reviewed journals.■ Utilized XRD, SEM, TEM, HPLC, GC/MS/FID/TCD, Raman, TGA, FTIR, Calorimeter, BET, UV Spectroscopy for characterization■ Worked on a team-oriented project that tested the degradation behavior of Fire-retardant materials and reviewed mercury emission-related regulations for industrial partners and reviewed the regulation regarding chemical facility safety under Executive Order 13650.■ Conducted risk assessment and developed safety procedures for new experimental setup.Data analysis■ Statistically analyze the experimental data using Python, Excel spreadsheets and JMP to figure out the effect of process parameters on the experimental result ■ Generated graphs to visualize the experimental results and presented graphs at conferences and scientific journals■ Developed web app for regression analysis to develop empirical models and statistical models using Python

San Antonio, Tx, Us

■ Proactively acquired new knowledge to design and develop the pyrolysis apparatus for catalytic hydropyrolysis under high-pressure condition

Seoul, Kr

■ Investigated the effect of fermentation conditions on the production of 2,3-butanediol produced from engineered E. coli for the optimization and kinetic study

Seoul, Kr

■ Collaborated with researchers for writing research proposal resulting in a $2.5 million grant funded by the Korean government for five years■ Supervised projects acquiring background in genetic engineering and biochemical engineering for optimization and kinetic study of 2,3-butanediol production using engineered microbes resulting in one patent

Doctor Of Philosophy - Phd, Biological And Agricultural Engineering

Master Of Science (M.S.), Chemical And Biomolecular Engineering

Bachelor Of Science - Bs, Chemical And Biomolecular Engineering