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ELECTROPneus™
page 1 of 9
March 2013 Edition
Setting the Standard for Automation™
™
Houston Section
March MeetingDate: Wed, March 6, 2013, 11:30-1:00 PMLocation: Bechtel
Cost: With Reservation Without Reservation $ 15 $ 20
RSVP Here: houstonisa.org/135
Parking will be available at the 3040 Post Oak Blvd. building.
"What can go wrong with your Project?"Presented by:Tom JacksonControl Systems Engineering Manager, Bechtel Corporation
With the changes in the engineering, procurement and construction industry, Mr. Jackson will discuss the evolution of project demands.The effects of competitive bidding for projects and push from clients to complete projects as soon as possible will be explored.The presentation will include observations on the client, EPC and vendors perspective. 1) Shorter Schedules a. Client needs/demands b. Providing full engineering design c. Procurement cycles 2) Vendor Relations a. Managing expectations b. Defining scope c. 2-way Communications 3) Moving from Engineering to Construction to Start-up a. Documentation b. Competencies of all parties c. When things go wrong
Tom Jackson has 22 years' experience working at Bechtel Corp. He is a graduate of Washington University (1999) and has been the manager of the Control System Engineering group for the last 5 years.
Upcoming ISA Events
Mar 1, 2013 – Science Engineering Fair of Houston, @GRB, (non-ISA event)
Mar 6, 2013 – Houston Section, Lunch, @Bechtel, General Section Meeting Presentation:
“What can go wrong with your Project” by Tom Jackson
Mar 27, 2013 – Pipeline Subsection, Annual Shrimp Boil & Table Top Show, HFR
Mar 28, 2013 – Texas City Section, Table Top Show, Texas City, (TBD)
Apr 3, 2013 – Houston Section, Lunch, @Worley Parsons, General Section Meeting Presentation:
"PHMSA Control Room Management" by Russell Treat
Apr 4, 2013 – Texas Channel Section, Table Top Show, Pasadena Convention Center
Apr 10, 2013 – Pipeline Subsection, Plant/Facility Tour
Apr 17, 2013 – Analysis Subsection, TBD, @Brady's Landing, Meeting
Apr 12, 2013 - Houston Section, Golf Tournament, @Kingwood Country Club
Apr 14-18, 2013 – Analysis Division, 58th Annual Analysis Division Symposium, Galveston Convention Center
Apr 19-20, 2013 – District 7, District Leadership Conference, Galveston Convention Center
Apr 25, 2013 – Brazos Section, Table Top Show, Lake Jackson (TBD)
May 1, 2013 - Houston Section, Lunch, @BP, General Section Meeting Presentation: “CSE PE” by Randy Marek
May 6-9, 2013 - OTC (non-ISA event) ISA Membership Booth
May 15, 2012 – Pipeline Subsection, Lunch, @HESS, Meeting
Jun 5, 2013 – Houston Section, Dinner, @HESS, General Section Meeting – “Scholarship Night”
Jun 19, 2013 – Analysis Subsection, TBD, @Brady's Landing, Meeting
March 2013 EditionSection
page 2 of 9
Houston President’s
Corner
Ardis Bartle
People ask the difference between a leader and a boss. The leader leads, and the boss drives. Theodore Roosevelt
Dear Houston ISA Members:
Have you heard the exciting news? Out of 35 students who participated in the study group and CSE exam, we had an 89% pass rate. Plan to attend our May meeting as we announce our upcoming study program for CSE exam in October 2014.
Our next 6 months include meetings at BP in West Houston, Worley Parsons, and of course Bechtel. Our speaker's topics vary from new "PHMSA Regulations in Regards to Automation" to "What Can Go Wrong on a Project". Again, we are committed to our goal of emphasizing education to our local section whether it be local training, leadership training and scholarship funds. Do you have a son or daughter who might need a scholarship next year? Start attending our meetings in March to qualify for applying a scholarship.
We are looking at some special ISA training happening in June. Keep an eye on our website, we will be putting this out and giving Houston members first shot at the seats.
Finally, take advantage of our membership's strength, attend a meeting in March, April or May, and participate on a committee. With our golf tournament in April, we have lots of volunteer opportunities for each of you! Be a part of one of the most active and largest chapters in ISA in US!
We look forward to seeing you soon!
Group photo of February Meeting
HoustonSection
page 3 of 9
March 2013 Edition
2013 ISA Houston Section Scholarship Golf Tournament
ISA Houston Section is pleased to announce the
2013 Scholarship Golf Tournament scheduled for
Friday, April 12, 2013 at Kingwood Country Club!
Register your teams to reserve your space in the
most sought after spring tournament in Houston!
We are also looking for fun creative sponsors.
Proceeds go towards student scholarships.
R e g i s t r a t i o n O p t i o n s
Foursome-Includes 18 Hole fee, lunch, shared golf cart, range balls, goodie bag, awards dinner
$540
Individual-
Includes 18 Hole fee, lunch, shared golf cart, range balls, goodie bag, awards dinner
$135
Title Sponsor-Includes 2 foursomes, course sponsorship, event signage and much more
$3000
Golf Cart Sponsor
$1500
Course Beverage Sponsor
$1000
Exhibit on Course
Set up at the event and network
$650
Bag Sponsor
$1000
Ball Sponsor
$500
For Registration and Information contact:
Amanda Hardy, [email protected], 2819280462
Matt Parrott, [email protected], 2817999089
Friday, April 12, 2013
1:30 PM Shot Gun
The Clubs of Kingwood 1700 Lake Kingwood
Kingwood, TX 77339
Longest Drive Sponsor
$200
Closest to Pin
$200
Score Board Sponsor
$200
Hole Sponsor
$200
page 4 of 9
LOOKING FOR WORK?Check out these and other exciting opportunities at
http://houstonisa.org/jobs March 2013 Edition
Immediate Opening for a Controls Engineering Specialist - IGS - Houston, TX
Project Engineer - Instrument & Controls Engineer - Brunel - Houston, TX
Process Control Specialist - Occidental Petroleum - Pasadena, TX
Instrument Designer - Analytical Instrumentation - GAP Engineering, Inspections & Construction - Katy, TX
Pipeline Engineer-Praxair USIG National Opportunities - Praxair North American Industrial Gases - Texas City, TX
Instrument & Electrical Controls Engineer - RSA Corp - Beaumont, TX
Process Control Engineer - in a chemical plant - Meador Staffing Services - La Porte, TX
Proposal Manager - Emerson Process Management - Houston, TX
Proposal Manager - Process Systems & Solutions - Houston, TX
Process Control Technician-Freeport Thermal Treatment - DOW - Freeport, TX
Manager, Special Projects (Control Systems) - Patterson-UTI Energy Inc. - Houston, TX Process Control Engineer - Meador Staffing Services - La Porte, TX BOP Controls Engineer - Ensco PLC - Houston, TX Instrumentation Controls and Automation Engineer - Rider Hunt International - Houston, TX Process Automation Engineer (3308) - automationtechies, KLF - Houston, TX Process Control Engineer - Dow Chemical Company - Houston, TX Project Engineer - W-Industries Inc - Houston, TX Mid Level Automation Engineer - National Engineering - Houston, TX Instrument and Electrical Controls Engineer Sr. - Key Corporate Services - Houston, TX AutoCad Layout Designer - TCA Consulting Group - Houston, TX
Speaking of employment, if you had your PE, do you think you would have more job opportunities?
Did you know that ISA Houston Section organized a CSE Study Group last year, and the pass rate for attendees was 86%?
HoustonSection
March 2013 Edition
page 5 of 9
Distillation column tray temperature control
Y. Zak Friedman, PhD, Petrocontrol
A colleague has asked me about distillation column tray temperature control structure. I acknowledge, he said, the advantage of tray temperature control shown in figure 1, with so-called heat-balance-type configuration, where distillate draw is on accumulator level and temperature control on reflux. But what if I have a mass balance configuration as shown in figure 2? Can I use tray temperature control on the distillate to control product quality? The distributed control system (DCS) control strategy of figure 1 works well because a well-placed tray temperature provides an approximate product purity inference. Should feed composition or enthalpy change – the tray TC would correct the reflux, and indirectly the distillate draw. Why not then use a similar strategy for mass balanced columns and manipulate distillate draw directly? Let us examine such a strategy. 1. To begin with, mass balance DCS strategy is typically configured on high reflux fractionators with a flat temperature profile, and the use of tray temperature as a quality inference is questionable. If indeed there is such a tray whose temperature provides a reasonable inference then why apply a mass balance strategy? Heat balance would do better. 2. At the end of the day the tray in question is cooled by reflux. The DCS strategy of figure 2 depends on the drum LC to respond to distillate flow changes and manipulate the reflux. Only then would the fractionation really change. Depending on LC tuning, the temperature response can have difficult dynamics and for such a strategy to work the LC must be tuned tight. Then it must be locked in such a way that no-one can re-tune it without first obtaining permission. 3. And what would happen if the operator turns this LC to manual for unrelated reasons? If the TC is allowed to continue to work it would wind up and fail. This calls for installing a special switch to turn the TC to manual when the LC is not in control, making the strategy more complex.
Figure 1. Tray temperature control on a heat balance control structure
So can we make the strategy of figure 2 work? Yes we can, with some complexities, but why would we want to? (cont. on Pg. 6)
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HoustonSection
March 2013 Edition
page 6 of 9
Distillation column tray temperature control (cont. from Pg. 5)
Alright, said my colleagues, I will not configure figure 2 under normal circumstances, but please tell me, do you see any column configuration where quality control on the draw would be recommended? Initially I responded negatively, but at a later point I thought about figure 3. The column of figure 3 has a pickling section, aiming to remove extra light components, whereas the main distillate product is drawn from a tray. An example of such a column is a benzene toluene separator, where the benzene contains some aliphatic C6. The top product contains about 20% aliphatics and it is recycled back to be reprocessed upstream. Benzene product is drawn from a tray and it is 99.9% pure. The DCS strategy here uses mass balance configuration as shown, but figure 3 is different from figure 2 in an important way. Upon increasing distillate draw, reflux is reduced instantly without relying on another LC to work. Hence the tray TC is easy to tune and would not require locking interlocking logic. Assuming the existence of a meaningful tray temperature, the strategy of figure 3 is a good way to apply quality control at the DCS level.
Figure 2. Tray temperature control on a mass balance control structure
Figure 3. Tray temperature control on a column with pickling section
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About the author
Y. Zak Friedman is a principal consultant with Petrocontrol. He has practiced APC (advanced process control) for most of his career, specializing in the use of first-principle models for inferential process control, and has developed inferential models to fit many hydrocarbon processes. Dr. Friedman's experience spans over 40 years, working with Exxon Research and Engineering, KBC Advanced Technology and since 1992, with Petrocontrol. He holds a PhD degree from Purdue University. He can be contacted at [email protected].
Support those companies that support ISA Houston Section
page 7 of 9
March 2013 Edition
GAS PHASE
H2S
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VOC in waterOil in Water
H2S in Liquids,Gas & LPG
LIQUID PHASE
Hydrocarbon VOC in Water
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(crude, water, diesel, etc.)
ph: (713) [email protected]
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PROCESS ANALYZERSField-proven, cost-effective liquid and gas analyzers
page 8 of 9
Sponsorship Rates and Order FormHouston Section ELECTROPnues™ and Website
2012-2013
See Monthly Newsletter ELECTROPneus™ and the Houston ISA SectionInformation on www.houstonisa.org website
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Send this form and ad copy to: Mike Hilton (email: [email protected]) P.O. Box 5009 Kingwood, TX 77325
houisaspshpfm r 4.0
page 9 of 9
ISA HOUSTON SECTION OFFICERS 2012-2013
ELECTED OFFICERSPRESIDENTArdis BartleApex [email protected]
VICE PRESIDENTClifford WuertzAMEC [email protected]
TREASURERSohail IftikharINTECH Process Automation713-849-1121
ASSISTANT TREASURERDale Merriman, CSATMerTech, Inc.713-978-7765713-203-9191 (Cell)[email protected]
PROGRAM DIRECTORSteve [email protected]
NEWSLETTER EDITORMichael HiltonDynamic Controls & Sensors281-812-9844 [email protected]
PUBLICITY DIRECTORPaul [email protected]
SECRETARYJoe [email protected]
WEB MASTERSteven [email protected]
PAST PRESIDENT(AICOWWC)Chan [email protected]
SOCIETY DELEGATEMike HuerecaRawson [email protected]
MEMBERSHIP DIRECTORRyan Brooks
EDUCATION DIRECTORCharlie SouzaBP US Pipelines & Logistics(713) [email protected]
APPOINTED OFFICERS
PARLIAMENTARIAN& HISTORIANLester KaneGulf Publishing [email protected]
SECTION-DIVISIONLIAISONL. M. “Dutch” KeenKeen CSE, [email protected]
STUDENT SECTIONLIAISONMary CannonTYCO Flow [email protected]
ASSISTANT STUDENTSECTION LIAISONQuyen Huynh LeUniversity of [email protected]
GENERAL COUNSELWendy BuskopBuskop Law [email protected]
ASSISTANT MEMBERSHIPDIRECTORVacant
ASSISTANT EDUCATIONDIRECTORVacant
ASST. PROGRAM DIRECTORChester MeyersWilson Mohr281-295-8885 [email protected]
STANDARDS & PRACTICESBill Campbell, PEBCAM [email protected]
FALL PROGRAM CHAIRMike HuerecaRawson [email protected]
SPRING PROGRAM CHAIRMatt ParrottK2 Controls281 583 [email protected]
PHOTOGRAPHERHenry TrothContech Control [email protected]
ASSISTANT WEBMASTERJeffery MacMillianOmni Flow [email protected]
ALTERNATE SOCIETYDELEGATEChan [email protected]
SCHOLARSHIP CHAIRMary CannonTYCO Flow [email protected]
ANALYSIS SUBSECTIONLIAISONDale Merriman, CSATMerTech [email protected]
PIPELINE SUBSECTION LIAISON
Mike MarczakWilliams Gas Pipelines713-215-2789 [email protected]
AREA SECTIONS LIAISONRobert VeceraRBI [email protected]
AUTOMATION WEEK LIAISON
John CampbellConoco Phillips (Ret.)281 856 [email protected]
ISAHS CONFERENCE& EXHIBIT CHAIR
Mike HuerecaRawson [email protected]
ASSISTANT ISAHS CONFERENCE CHAIRArdis BartleApex [email protected]
ASSISTANT ISAHS EXHIBIT CHAIRAmanda HardyFunction [email protected]
Please feel free to call or email the officers listed above with any questions you may have, or for any assistance you need, or wish to offer. You can also send us an email through our website: . www.houstonisa.org
Bookmark us in your browser and check our site monthly for the latest updates and announcements!
Send Newsletter Information/Questions to: Michael Hilton at [email protected]