Separation Technology For Oil Field Minerals: Improvements ...
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Separation Technology For Oil Field Minerals: Improvements for Testing and Mobility
Transcript of Separation Technology For Oil Field Minerals: Improvements ...
Separation Technology For Oil
Field Minerals: Improvements for Testing and Mobility
Background on ST Equipment & Technology LLC (STET)
Results for upgrading barite to drilling grade
Operations
How to evaluate if your barite source can be upgraded by
STET? Results for upgrading barite to drilling grade
Testing Improvements and Mobility
Conclusions
Agenda
STET’s Unique Dry Processing Technology
Tribo electrostatic technology : Charged by particle-to-particle contact (Transfer of electron based on different surface chemistry – “work function”)
First commercial operation in 1995 for fly ash
New applications Implemented over decades
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Food & Feed
Successful results with:
• Oilseed Meals (Sunflower) • Wheat and Oat Bran • Wheat gluten-starch mix • Whole Wheat Flour
Sunflower Meal Feed 39 % Protein
Protein-rich 54%
Protein-lean 24%
Feed
Feed
Fiber -Lean
Fiber - Rich
Wheat Bran
Fiber -Lean
Fiber - Rich
Feed
Oat Bran
Feed
High Ash
High Bran
Low Ash
Low Bran
Wheat Flour
Feed
Protein-rich
Starch-rich
Wheat gluten-starch mixture
FOOD AND FEED INDUSTRY
More than 20 m tonnes of ProAsh produced in 17 plants
Plant Location Country Separator
s Start Year
New England Power Salem, MA 1 1995/2006
Duke Energy Roxboro, NC 2 1997/1998
CPSG Brandon Shores, MD 2 1999/2005
Scottish Power Longannet, Scotland 1 2002
Jacksonville Electric SJRPP Jacksonville, FL 2 2003/2004
SMEPA Morrow, MS 1 2004
NB Power Belledune, NB 1 2005
RWE Didcot, England 1 2005/2013
PP&L Brunner Island, PA 2 2007/2008
TECO Big Bend, FL 3 2008
RWE Aberthaw, Wales 1 2008
EDF Energy W. Burton, England 1 2008
ZGP (Lafarge / Ciech) Janikowo, Poland 1 2011
KOSEP YONG HEUNG 5 & 6 1 2015
Siekerki (Lafarge/Vatenfall) Warsaw, Poland 1 2016
Eagle Cement Manilla, Philippines 1 2017
2017 2018
Feed
R
esu
lts
ST Equipment & Technology - Commercial Applications
Calcium Carbonate
9.5% SiO2
< 1% SiO2
89% CaCO3 Recovery
Improved Brightness
Talc
58% Talc
42% Magnesite
95% Talc
77% Recovery
88% Talc
82% Recovery
Barite Fly Ash
82%BaSO4
3.78 (SG)
8 % - 25% LOI
92% BaSO4
4.21 SG
74% Recovery
Processed ash:
2.5% LOI
Steqtech.com
STET M24 separator operating at Ramadas Minerals Pvt. Ltd.
barite grinding plant near Kodur India
Facility Construction Completed September 2016
System Checkout October 2016
Optimization Nov 2016-Jan 2017
Fully Operational Feb 2017
Now routinely producing 4.1 - 4.2 SG product barite from low-
grade 3.8 to 3.9 SG feed ore from APMDC Mangampet mine
Successful testing for production for 4.4 SG chemical-grade
product
• Sucessful processing using alternate low-grade high-Fe feed ore
Full-scale Results – Ramadas Minerals
STET M24 separator and balance of plant equipment
Full-scale Results - Ramadas Minerals
STET M24 separator located on elevated platform
Full-scale Results – Ramadas Minerals
STET Separator Control Screen
Full-scale Results - Ramadas Minerals
Separation Results – SG increase vs. barite recovery curve
Full-scale Results - Ramadas Minerals
Schematic of STET Tribo-electrostatic Belt Separator
Drilling-grade Barite > 4.1 SG Silicate-rich Tails – Low SG
Low-grade Barite (3.7 to 4.0 SG)
-200 mesh
ST Equipment & Technology
Confidential
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Multiple parameters available for Quality Optimization
Feed Conditioning
Operational Variables
• Feed Point
• Tons per Hour
• Belt Speed
• Electrode Gap
• Electrode Voltage
• Feed Rate
Enables consistent product from highly variable feed material
O
pti
miz
ati
on
Can your barite source be upgraded or optimized by STET process?
ST Equipment & Technology Confidential
Option 1 – Small samples with the X 2.5
Benchtop Separator
Available in Boston since December
2017
5kg will help to show evidence of
Tribocharging and Separation (free
of charge)
50 kg will give good indication of
product grade (1 day of testing)
Yields not predictive of full-scale
ST Equipment & Technology Confidential
Recent Barite Evaluations with the X 2.5
Rapid, Cost effective screening of
multiple samples
Possible elimination of jigging for
extremely low grade ores
• Mine – Mill – separate –ship
Is liberation of silica more effective
than liberation of barite?
ST Equipment & Technology Confidential
Option 2 - Pilot Scale Evaluation Testing in Needham MA
Pilot Scale Separator allows
Prediction of Commercial Scale
Separation Results
Pilot Separator is Same Length as
Commercial M42 Unit, But 1/7 of the
Feed Rate
Test Material Quantity is 1.5 Ton
Pilot Scale Test Proposal from STET
(3 weeks of tests)
ST Equipment & Technology Confidential
Option 3 - Pilot Scale Evaluation Testing at Customer Site
ST Equipment & Technology Confidential
Option 3 - Pilot Scale Evaluation Testing at Customer Site
M6c Containerized Pilot Scale
Separator
Transportable to customer site
Same Pilot-scale Separator as
Option 2
Suitable for testing of 20 kg batches
Modification required for continuous
operation
STET can prepare rental agreement for
M6c
ST Equipment & Technology Confidential
Not only a container
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Almost plug and play
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Mobile, on site, separation now possible with your operators
STET has expertise in Separation
STET has world class engineers and
scientists applying their knowledge
over a wide range of minerals.
Your operators and experts know
the specifics of your minerals
Cost effective for evaluation of
multiple minerals at your site
Possible tie-in with mobile mill for
central evaluation of multiple
mineral development
ST Equipment & Technology Confidential
Conclusions
STET Separation is effective at upgrading low-grade barite to
drilling-grade by removal of low density silicates
Full-scale separator operating at Ramadas Minerals, Kodur India
STET process features
Dry process, low emissions, no chemicals added
Low energy consumption (1-2 kWh/ton feed)
High rate (up to 40 TPH for STET model M42)
Simple operation
New applications evaluated at STET Needham lab and pilot plant
Containerized system now available for testing at plant site
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Thank You
ST Equipment & Technology LLC
Needham Massachusetts 02494 USA
Tel: +1-781-972-2300
Website: www.steqtech.com
Herve Guicherd Vice-President of Business Development
(+33) 6 58 88 09 56 [email protected]
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Kyle P. Flynn Manager – Process Engineering
(+1) 781-972-2324 [email protected]
Steve Gray Consultant
