Experience

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  Self-employed

  • Process Control Consultant

    • May 1999 - Present

    Since 1999, I have worked with Barry D. Payne and Associates on a number of NGL fractionator projects. From 2000 to 2003 I developed simulations of ten existing production units with the Dow Chemical Company

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  Aspen Technology

  • Process Control Specialist

    • Aug 1977 - May 1999

    As a project leader in the refinery blending team: • Led project and support activities.• Assisted in refinery gasoline and diesel blending business development. • Worked with the blending team to support development of Aspen's blending technology.As a project leader in the chemicals group of the Advanced Control & Optimization Division:• Commissioned a composite LP and solved performance problems with an existing DMC application in an ethylene unit. • Led in completing a pretest and benefit study that resulted in the approval for Aspen Technology to implement advanced controls in an ethylene unit.• Conducted post-audits of advanced control and optimization projects in two ethylene units for the same client that facilitated the future approval of projects at other units. This work is said to set the standard for similar work in the future.• Provided and documented process control support during a startup of a hydrotreater unit that achieved very high customer satisfaction.

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  The Dow Chemical Company

  • Senior Process Control Engineering Associate

    • Jul 1970 - Aug 1997

    At Dow Chemical 1970-1997 as a member of the global advanced process control & optimization teams:• Instrumental in a one-year (1979) task force to improve operations & controls of a Dow plant, which posted production records in energy turndown, reduced downtime, and reduced maintenance. • Implemented numerous traditional control strategies throughout Dow’s Texas Division. • Promoted a global initiative to improve Dow's process control design methodologies.• Promoted effective distillation control as a member of a global distillation team.• Initiated, developed, and supported a computer program evaluating control strategies for interaction, inferential capability, and disturbance rejection. • As a recognized Dow Chemical expert in distillation control, assisted in the design of control strategies for several distillation towers globally.• Promoted advanced controls including multivariable control and optimization.• Initiated Process Engineering involvement in process control design.• Implemented a DMC 3.1 controller on a C3 Splitter and assisted on other DMC implementations.In the field of process simulation:• Participated in a industry work session with the Aspen Project in early 1980.• Developed a simulation program for Dow Chemical’s only crude refinery.• Developed and supported a simulation program for chlor-alkali plants used in the design of several plants worldwide.• Developed and supported a simulation program used to design the world’s only multistage flash evaporator used to concentrate caustic solutions.• Participated in the development of Dow Chemical’s first successful general-purpose steady-state simulation program DOWSIM.• Developed steady-state simulation programs for distillation towers, absorbers, and strippers.• Developed heat exchange routines for Dow Chemical’s steady-state process simulator DOWSIM II.• Led in the use of Dow Chemical’s last hybrid computer (EAI100) dynamic simulation lab.