Technology Challenges and Solutions

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Presentation transcript:

Technology Challenges and Solutions Edible Oil Industry Technology Challenges and Solutions 2007 ICFMCE Dubai November 25, 2017 Bent Sarup

Outline Industry overview and trends Technology introduction Examples of new developments Summary

Oil demand has been on a steady growth path Ref. Oil World, Sep 23, 2016 © Alfa Laval

Biofuel demand foreseen to reduce Reference: OECD-FAO AGRICULTURALOUTLOOK (2017) © Alfa Laval

Consumption per Capita CAGR 2010-2015 = 3.5% The most developed countries consume about twice the amount of oil per capita (but stagnating) as an average developing country (growing) Reference: Annex A, OECD-FAO AGRICULTURALOUTLOOK (2015) © Alfa Laval

Edible Oil Industry Overview EXTRACTION Refining Liquid edible oils Crude Oil - palm - soybean - rapeseed - sunflower - corn - coconut - palm kernel - cottonseed - groundnut - ricebran - tallow - fish Fat modification Specialty fats Fatty acids Fat splitting, distillation, .. Oleochemicals Glycerin Pretreatment + transesterification Biodiesel

Edible oil industry drivers Solid structural growth (food demand) Healthier foods (nutritional value, safety) Minimize losses and utilize byproducts Energy efficiency Sustainability www.alfalaval.com

Edible Oil Refining

R&D in process system development Performance Time Customer Process solution supplier Universities Sub-suppliers Funding agencies

Example 1. University collaboration Modelling of lipid systems and application example for micronutrient recovery

Challenges in lipid modelling Experimental measurements for obtaining properties of lipids of interest are time consuming, expensive, sometimes may not even be feasible. Issues related to accuracy and reliability of the available data and property prediction models need particular attention. Design & analysis of lipids processes require: databases containing necessary property information reliable and consistent property prediction models validation of data & property models using reliable plant data

Some lipid molecular structures Β-tocopherol A triglyceride Β-sitosterol A free fatty acid A phospholipid http://upload.wikimedia.org/wikipedia/commons

Property prediction by GC methods For Primary Properties of Lipids Marrero and Gani group-contribution (GC) Method 1 The function f (X) is a function contains the target property X. Atom Connectivity Index Method 2 (is used to create/predict missing group contributions) Quantification of confidence intervals 3 (to assess reliability of the predictions) For Temperature Dependent Properties of Lipids Ceriani et al. (2012) GC Method 4 (for prediction of vapor pressure and heat of vaporization of lipids) REFERENCES: 1 J. Marrero, and R. Gani, Fluid Phase Equilibria, (2001), 183-208. 2 R. Gani et al. Industrial and Engineering Chemistry Research, (2005), 7262-7269. 3 A. Hukkerikar et al., Fluid Phase Equilibria, 321 (2012) 25-43. 4 R. Ceriani, R. Gani, Y. A. Liu, Fluid Phase Equilibria, (2012), 53-59.

SPEED Lipids Database. Structure & Features “Thermodynamic needs for the oleochemical industries”, Bent Sarup, Olivia A. Perederic, Sawitree Kalakul, John M. Woodley, Rafiqul Gani, 16th AIChE Meeting (2016) 13/11/2016 Database (db) organized in 2 parts, both containing experimental data and property models Database is connected to Lipids Toolbox which has different features: db search, property models regression, consistency check, database management witch allows the db connection with process and product simulator. Check presentation – more details on the database

SPEED Lipids Database. Models performances Pure Compounds 330 compounds 24 property models Pure compounds properties consistency check NBP Triglycerides Diglycerides Monoglycerides “Thermodynamic needs for the oleochemical industries”, Bent Sarup, Olivia A. Perederic, Sawitree Kalakul, John M. Woodley, Rafiqul Gani, 16th AIChE Meeting (2016) 13/11/2016 Pure compounds part contains info on 330 compounds for 24 property models (primary and temperature dependent). DAG: no experimental data, MAG experimental data just for 1 compound

Micronutrient recovery Deodorizer distillates contain a number of valuable components such as tocopherols, tocotrienols, sterols and squalene, sometimes referred to as volatile “micronutrients” However, low recovery from the deodorized oil and their concentration in the deodorizer distillates limits the feasibility of further processing of these distillates in dedicated facilities for separation and purification of the micronutrients It is therefore of considerable interest to improve the understanding of design and operating variables that increase the feasibility of micronutrient utilisation

Recovering micronutrients ”Double scrubber”

Process simulation example Oil Soybean oil Column: Packed (structured packing) Operating conditions 260 ºC, 0.75% sparge steam, 2.5 mbar vacuum Oil composition Simulation model PRO/II with in-house lipid property data base

Tocopherols in the hot destillate

”Double Scrubber” Main Characteristics Optimum operation requires compromising of tocopherol yield and concentration Relatively narrow range of optimum hot scrubber temperatures Only stripping and condensation, no rectification functionality © Alfa Laval Slide 21 © Alfa Laval 21

Alfa Laval TocoBoost® Patents granted and pending (e.g. EP 2597142)

Loss of Toco’s in FFA Product Double scrubber TocoBoost® Patents granted and pending (e.g. EP 2597142) © Alfa Laval Slide 23 © Alfa Laval 23

Example 2. Supplier collaboration Enzymatic degumming

Gum content in crude oils

Hydration rates of phosphatides

Phospholipids cause oil loss

Enzymes reduce degumming yield loss

Enzymatic deep degumming process

Enzymatic refining of water degummed oil Advantages no soapstock no wash water robust Caustic refining Enzymatic refining P level in oil 150 ppm P level after centrifuge 2 ppm Soapstock (%) 1.51 Dry lyso gums (%) 0.5 Refining loss (%) 1.42 0.45 By-products lyso-gums FFA Ref :Dayton, C., Nov. 2005 Germany

Physical refining plant, enzymatic degumming

Summary The fats and oils industry is of key importance for food supply as well as a sustainable source of chemicals and liquid fuel. Technology for the industry continues to undergo change to develop efficiency, minimize losses and provide healthier end products. A broad collaboration between the customers, edible oil technology suppliers, universities and suppliers is essential to gain speed in process system development.