Near Infrared Spectroscopy for the Bioethanol Industry · 2. NIR Spectroscopy 3. NIR for Bioethanol...

Dr. Egbert Stärk

2. European Bioethanol Technology

Meeting

in Detmold

Near Infrared Spectroscopy for the

Bioethanol Industry

1. Company Perten Instruments

2. NIR Spectroscopy

3. NIR for Bioethanol industry

4. Whole grain analyser for incoming materials

5. New NIR technology and applications

6. Diode Array benefits

7. On-line measurements

Overview

2. European Bioethanol Technology Meeting

1. Perten Instruments I

• founded in 1962 by Harald Perten• head office in Stockholm (Sweden)• today approx. 90 employees• branch offices in Germany (Hamburg), USA, China

Switzerland, France, Australia, …

• The first focal point : Quality Control of Flour• traditional products:

- Falling Number - Glutomatic- Lab mills

• today mainly Near Infrared (NIR)


1. Perten Instruments II


More than 25 years experience in NIR technology

• focal point today : Quality Control of Flour, Grain, Food and Feed

• NIR products: - Inframatic systems for Flour, Powder, Meals - Inframatic systems for Whole grain, Corn, Oil seed- Diode Array (DA) for Food, Feed and more- DA on-line for Flour, Grain and Feed

• cooperation with Buehler regarding On-line systems• approx. 20.000 NIR systems world wide installed

2. NIR Spectroscopy• Interaction of near infrared light and the sample• Diffuse reflected light offer sample information• Chemometric models make results available

Parameter:Protein, Moisture, Fat, Starch, Fiber, Oil, (Ash), Glucose, Ethanol, Amino acids, Energy, …

Products:Single products: all Grain, Corn, Oil seeds, … Raw materials: Soybean & Rapeseed flour, Silage, .. By-products: DDG, Fermentation broth, …Finished products: Feed, Food, Liquid feed


2. Advantage of NIR vs. Lab

• Very fast method (results in seconds)

• Several components simultaneously

• No time delay - Process control possible

• High throughput means very cost-effective

• No use of chemicals

• Easy handling - no or less sample preparations



3. NIR Spectroscopy for the Bioethanol Industry

Measurements for a fast qualityand process control:

1. Incoming Grain / Corn - Moisture, Protein, Starch, Oil

2. Fermentation broth, Beer well- Glucose, Ethanol, Maltose,

Lactic Acid, …

3. Process control - Moisture in DDGS at the

centrifuge, Distillers samples

4. Co-products: Dry & Wet Distiller’s Grain- Moisture, Protein, Fiber, ADF, NDF, …


4. Incoming Grain / Corn

Inframatic 9200:

Products: Wheat, Rye, Triticale, Oats, Corn, Barley, Rapeseed

Parameter: Protein, Moisture, Starch, Oil, Hectoliter weight

Inframatic 9200

Fast quality control at the receiving office


4. Inframatic 9200 - Results

Products and Parameter with IM 9200- Standard Error of Prediction (SEP):

ParameterProduct

Starch Protein Moisture Fat

Wheat 0.65 0.23 0.20 -Rye 0.87 0.24 0.22 -Triticale 0.85 0.24 0.21 -Corn 0.95 0.34 0.28 0.32

useable at- Grain traders - Mills - Bioethanol IndustryIM 9200


5. New NIR Technology for moreapplications

DA 7200 Spectrometer:

• based on Diode Array Technology• analysis time approx. 5 seconds • all wavelengths in milliseconds • developed for many applications• non moving optical parts inside• better wavelength accuracy and

reproducibility

DA 7200

5. Diode Array 7200


DA 7200 advantages: • nonnon--contact contact measurement from above from above • no sample grinding and preparation• easy to use (two button analysis)• rotating sample cups• multi-component analysis in 5 seconds• no cleaning work

DA 7200: wide application possibilitiesFlour, Powder, Wholemeal, Pellets,Kernels, Pasta, Butter, Liquid feed,finished Food and Feed


5. DA 7200 – Results

Income Wheat - Protein - vary useable instrument

Samples: 786Range: 9.2 - 22.2%R2 : 0.98SEP : 0.26

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Reference

NIR



Income Wheat – Starch- whole grain, meal, pellets, butter, … with one sample cup

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Reference

NIR

Samples: 683Range: 61.1 – 72.7%R2 : 0.89SEP : 0.85



Income Corn - Moisture, Protein, Oil, Starch- all parameters simultaneously

Parameter Range [%]

Samples R2 SECV

Moisture 8.2 – 15.8 241 0.99 0.18

Protein 5.6 – 13.8 241 0.99 0.29

Oil 3.0 – 7.2 241 0.67 0.30

Starch 72.4 – 74.2 143 0.75 0.29

5. DA 7200 – Results Dried Distiller’s Grain (DDG)

- fast quality control - measurement of dry and wet

Distiller’s Grain possible

Protein:Samples: 683Range: 28.0 – 38.1%R2 : 0.98SEP : 0.30


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Reference

NIR


5. Analysis of Fermentation Broth

DA 7200 for further applications:

- disposal cups for liquid feed- changeable in seconds- fast measurements of fermentation broth- non-contact, no cleaning work

Disposal cup with Fermentation Broth

DA 7200Non-contact samplingwith disposal cup


5. Analysis of Fermentation Broth

DA 7200:

Ethanol, Glucose, Maltose, …

in Fermentation Broth

ParameterProduct

Range[%]

Sample R2 SECV

Ethanol 0.2 – 13.4 235 0.99 0.28Glucose 0.1 – 11.6 230 0.98 0.46Maltose 0.4 – 5.2 230 0.96 0.32Lactic Acid 0.1 – 1.3 221 0.79 0.10

Et h a n o l in Fe rm e n t a t io n B ro t h

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La b

NIR

Disposal cup


- very fast measurements (5 seconds)

- new technology - vary useable

- stand alone instrument

- easy software and handling

- less sample preparation - no cleaning

- to handle also complex material

DA 7200

6. DA 7200 – Benefits:

7. Perten Instruments On-line History


Cooperation with Bühler for On-line started in 1990

Myra: Measurement in flour millsParameter: Moisture, Protein, Ash, Others …

Myre: A whole grain version wasintroduced for grain intake at flour mills in 2000

Parameter:Moisture, Protein, Starch, ...

Approximately 500 units supplied

7. Why On-line measurements?


Example: 100 to / day capacity- Manually: 10 meas. / day means 1 per 10 to- On-line: > 150 meas. per 10 to

• Every min one measurement or faster

• Average specifications of whole tonnage

• Starch content in the fermenter is exactly known

• Reliable calculation of produced ethanol and yield rate

• DA on-line instrument available

• Calibrations transfer from lab instrument possible

Thank you for your attention!


DA 7200

Near Infrared Spectroscopy for the Bioethanol Industry · 2. NIR Spectroscopy 3. NIR for Bioethanol...

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Transcript of Near Infrared Spectroscopy for the Bioethanol Industry · 2. NIR Spectroscopy 3. NIR for Bioethanol...