John Jechura Personal Web Page
Page & Site Contents

Professional Background

Colorado School of Mines Classes

Conventional & Alternate Fuels

Software & VBA routines

Personal Pages
Burn Recovery Journal

Contact via email

Professional Background
I have been formally trained as a chemical engineer and have been fortunate to have worked in industry for nearly 30 years. The progression of my professional career started with an interest in applying computers to solve engineering problems. This led to specific specialties in numerical methods & applied thermodynamics, to applications in fuels characteristics & production, and to strategic aspects of fuels usage. A small number of words to describe my life's path.

Schools attended over the years (external links)
Colorado School of Mines
University of Michigan
University of Toledo

Industrial experience (external links)

URS Washington Division
National Renewable Energy Laboratory (NREL) 
Marathon OilMarathon Petroleum Companies

Organizations (external links)
American Petroleum Institute (API)
American Institute of Chemical Engineers (AIChE)
Gas Processors Association (GPA)

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Colorado School of Mines Classes
I have also had the good fortune to teach a couple classes at the Colorado School of Mines since 1997. Since I am not on campus full time it was convenient even early on to have the class notes & assignments available on the 'net. Depending on the day (and time of semester!) this has been fun, challenging, stressful, and rewarding experience. Most definitely a learning experience. Can't be beat as a part-time job.

Petroleum Refining - CHEN 409
Energy Technology - CHEN 498

Even though I am not teaching Process Dynamics & Control any more I'm leavinf up the class notes. Over the years I've had contact concerning these notes & they seem to have helped students in their understanding of the material.
Process Dynamics and Control - CHEN 403(B)

External links
Colorado School of Mines main page
Colorado School of Mines Chemical Engineering page
Colorado School of Mines academic calendar

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Conventional & Alternate Fuels
I am constantly amazed as to the amount of information that is available at our fingertips by way of the Internet. When it comes to fuels, both conventional and alternate, I have found a variety of links that give very useful data.

Publicly available crude oil assays:
Chevron crude oil assays: North America (others from links at top of page)
Total crude oil assays
Strategic Petroleum Reserve Crude Oil Assays

The driving force behind much of the alternate energy investment in the United States will be due to the 2007 Energy Independence Act.

Presentation given at Colorado School of Mines on February 11, 2009

Biofuels links

Phyllis database of biomass composition
Oak Ridge National Laboratory's Billion Ton Vision report
NREL publications & biomass documents database

Aspen process models developed by NREL
for biorefinery analysis

Might algae be the answer to using a biomass resource for fuel?

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Software & VBA Routines
My first interest was the application of computers to engineering problems. Back in the olden days of computer punch cards & having to walk 2 miles uphill in the snow to the computer center to run your batch job overnight (only to find out the next morning that you made a single punctuation error!) this meant programming in Fortran. Nowadays the entry-level programming language of choice is a spreadsheet, usually Microsoft Excel. And if you really want to get fancy, you'll automate some of the work with VBA routines or do calculations with "live" VBA functions.

One of the most annoying ommissions in Excel (at least up Excel 2003) is the lack of a routine for doing linear interpolation. I wrote a couple sets of VBA routines for use in my classes and have made them avaible at the request of former students (who usually contact me a year after starting their first job stating they'd sure like to use the routines if they could just remember where the code was).  Here they are as BAS modules that can imported into a spreadsheet.

Linear interpolation
Linear interpolation of crude oil distillation curves

Some software packages that I really like to use (external links)
Particle Fire (not really a software package but one of the coolest screen savers around - way better than flying toasters!)

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Personal Pages

Burn Recovery Journal

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 Last revised January 12, 2010