Patents And Publications

Confidentiality:

Protecting confidential information is a top priority at BCRI. We are committed to safeguarding our clients' sensitive data with the highest standards of security and confidentiality. At BCRI, we implement robust measures to ensure that all client information remains secure and strictly protected, fostering a trusted partnership with without risking your privacy or interests in technology and intellectual property. 

Patents:

BCRI has access to an advanced IP portfolio within the NORAM Group that includes 70 patented technologies, with patent activity spanning over 250+ disclosures across global jurisdictions. At BCRI, we pride ourselves on a strong history of innovation, having developed a wide range of technologies both independently and in collaboration with leading global clients. Our approach emphasizes transparency, adaptability, and collaboration, ensuring that intellectual property (IP) development aligns seamlessly with our clients' goals and expectations.

We offer expertise in:
  • Patent Development: Assisting clients in securing robust patents that safeguard innovations and provide a competitive edge. 
  • Joint Technology Creation: Collaborating with partners to co-develop technologies, with clearly defined ownership and usage rights. 
  • Contract Research Agreements: Conducting targeted research projects with a clear framework for IP generation and ownership. 
  • IP Sharing Agreements: Structuring equitable arrangements that support innovation while protecting all parties’ rights and interests. 
  • Our team is well-versed in navigating complex IP landscapes and ensuring compliance with regional and international regulations. By understanding each client’s unique requirements, we craft tailored solutions that maximize the value of intellectual property while fostering trust and long-term collaboration. 

 Whether you are looking to secure new patents, co-develop breakthrough technologies, or establish clear terms for IP sharing, BCRI is your trusted partner for success. 

SELECTED PATENTS

BCRI and the NORAM Group have ~70 patented technologies in ~250 jurisdictions. A selection of patents is provided below:

J. Lockhart, A. Li, A. Mahecha-Botero. “Processes and systems for regenerative purification and production of hydrogen gas”, (2024).

M. Gattrell, J. Lockhart, T. Tasnim, A. Ebneyamini. “Systems and processes for producing low-cost bulk random carbon fibers using asphaltene as a feedstock”, (2024)

X. Zhang, T. Kumar, H. Zhao, J. Lockhart, B. Zeng, M. Palimi. “Systems and methods for accelerated concentration and drying of brines and tailings”, (2025)

W. Wolfs, C. Brereton, A. Sylvester, E. Mielke, J.F. Magnan, A. Mahecha-Botero. “Electrolyzer apparatus for multi-stage electrolysis”, (2024).

W. Wolfs, C. Brereton, A. Sylvester, E. Mielke, J.F. Magnan, A. Mahecha-Botero. “Method for multi-stage electrolysis”, (2023).

A. Mahecha-Botero, K. Nikolaisen, C.G. Cooper, B.W. Morrison. “Gas treatment processes and systems for reducing tail gas emissions”, (2022).

C. Lane, H. Lu, B.R, Ferris, A. Mahecha-Botero, B.W. Morrison, J.S. Sandhu, I.K. Tanu, C.G. Cooper. “Processes and devices for separating entrainment from sulphuric acid plant process gas”, (2021).

A. Mahecha-Botero and X. Li. “Gas Treatment Process and Apparatus”, (2019).

J. Lockhart, J. Wearing, A. Gulamhusein. E. Hobenshield, D. Devries. “Process for making partly-hydrolyzed cellulose using compressed cellulosic materials”, (2020).

G. Hum, D. Kurek, A. Li. “Products and methods for the treatment of mixtures of water and hydrophobic liquids”, (2019).

C. Brereton, S. Berretta. “Method of processing liquid chlorine containing nitrogen trichloride”, (2018).

J. Lockhart, P. Symons, J. Genders. “Purification process for partly-hydrolyzed cellulose”, (2018).

J. Lockhart. “Purification process for partly-hydrolyzed cellulose”, (2017).

D. Boyd, A. Li. “Electroless plating of ruthenium and ruthenium-plated product”, (2014).

M. Gattrell, “Process for adiabatic production of mononitrotoluene”, (2014).

M. Gattrell, “Sub-critical partial oxidation for treatment of nitration wastes”, (2014).

A. Li, J. Grace, C. Lim. “Hydrogen separation composite membrane module and the method of production thereof”, (2009).

J. Grace, C. Lim, A. Adris, H. Cui, D. Boyd. “Communicating compartmentalized fluidized bed reactor”, (2008).

M. Zhuang. “Method for treating metal-contaminated water and soil”, (2008).

J. Grace, C. Lim, A. Adris, D. Xie, D. Boyd, W. Wolfs, C. Brereton. “Internally circulating fluidized bed membrane reactor system”, (2006).

C. Brereton, A. Guenkel. “Nitration process”, (1999).

Selected Publications (BOOK CHAPTERS)

A. Mahecha-Botero. “Catalytic Fluidized Bed Reactors”. in Essentials of Fluidization Technology, pages 333-361. Wiley‐VCH Verlag GmbH & Co. Edited by J.R. Grace, X. Bi, N. Ellis. (2020). https://onlinelibrary.wiley.com/doi/10.1002/9783527699483.ch15

A. Mahecha-Botero & N. Ellis. “Scale‐Up of Fluidized Beds”. in Essentials of Fluidization Technology, pages 405-429. Wiley‐VCH Verlag GmbH & Co. Edited by J.R. Grace, X. Bi, N. Ellis. (2020). https://onlinelibrary.wiley.com/doi/10.1002/9783527699483.ch17

M. Gattrell and B. MacDougall, “Reaction mechanisms of the O2 reduction/evolution reaction”, Handbook of fuel cells, J. Wiley & Sons, 2010. https://onlinelibrary.wiley.com/doi/abs/10.1002/9780470974001.f205034

SELECTED JOURNAL PAPERS

M.A. J.s, H. Zhao, M. Gattrell, J. Lockhart and E.D. Cranston, “Identification of common textile microplastics via autofluorescence spectroscopy coupled with k-means cluster analysis”, Analyst, 2024 149 4747-56.

H. Zhao, A. Helgason, R. Leng, S. Chowdhury, N. Clermont, J. Dinh, R. Aldebasi, X. Zhang, M. Gattrell, J. Lockhart, H. Hamza., “Removal of Microplastics/Microfibers and Detergents from Laundry Wastewater by Microbubble Flotation”, ACS ES&T Water. 2024 20;4(4):1819-33.

A. Mashayekhi, C. Vazquez, H. Zhao, M. Gattrell, J.F. Gilchrist and J.M. Frostad, “Shear triggered coalescence”, 2024 Phys. Rev. Fluids 9, 023602

R. Billet, B. Zeng, H. Wu, J. Lockhart, M. Gattrell, H. Zhao and X. Zhang, “Hydrophilic solvent recovery from switched‐on microdroplet dissolution”, Droplet, 2023 2(4):e82.

M. Gattrell, S. Berretta and C. Brereton, “Vaporization and Decomposition of Nitrogen Trichloride in Chlorine”, In: “Pamphlet 21 Nitrogen Trichloride – A Collection of Reports and Papers, Edition 8″, The Chlorine Institute, Inc., 2023 p.370.

L.B. Cheng, J.Y. Kim, A. Ebneyamini, Z.J. Li, C.J. Lim, N. Ellis. “Thermodynamic modelling of hydrogen production in sorbent‐enhanced biochar‐direct chemical looping process”. The Canadian Journal of Chemical Engineering, 2023.

H. Liu, J. Choi, A. Ebneyamini, K. Kim, M. Martinez, J .Grace. “Particle sedimentation models for a commercial lithium extraction process from brine”. Chemical Engineering Science, 2022.

M.A. J.s, J. Abu-Namous, H. Zhao, M. Gattrell, J. Lockhart and E.D. Cranston, “Autofluorescence spectroscopy for quantitative analysis of cellulose nanocrystals”, Nanoscale, 2022;14(45):16883-92.

K. Sirikan, J. R. Grace, A. Mahecha-Botero. “Simulation study of gas-fluidized bed reactors with major changes in molar and volumetric flow”. Chemical Engineering Science. Volume 230(2), pages 116193 (2021).

D.J. Walls, E. Espitalié, G. Hum, J. Chen, M. Gattrell, A. Li and J.M. Frostad, “Effect of surfactants on the formation of oil-wicking aqueous gel for the remediation of oil spilled into surface water”, Chemical Engineering Science, 2021 15;232:116365.
A. Mahecha-Botero, Rohan Bandekar, Isabel Sêco, Igor Aksenov, C. Guy Cooper, Jon Foan, Kam Sirikan, Jim Wearing. “Concentrated sulfuric acid production from non-condensable gases and its effect on alkali and sulfur balances in pulp mills”. Nordic Pulp & Paper Research Journal. Volume 30(1), pages 100–107 (2021).

A. Ebneyamini, Z.J. Li, J.Y. Kim, J.R. Grace, C.J. Lim, N. Ellis. “Effect of calcination temperature and extent on the multi-cycle CO2 carrying capacity of lime-based sorbents”. Journal of CO2 Utilization, 2021.

A. Ebneyamini, J. Grace, N. Ellis, C.J. Lim. “Toward autothermal and hydrogen‐producing sorbent regeneration for calcium‐looping”. The Canadian Journal of Chemical Engineering, 2021.

Ebneyamini, J. R. Grace, C. J. Lim, N. Ellis, S.S.E.H. Elnashaie, A. Mahecha-Botero. “Simulation of autothermal hydrogen-producing limestone calcination for calcium looping in turbulent fluidized bed reactors”. Chemical Engineering Science. Volume 212(2), pages 115353 (2020).

D.J. Walls, E. Espitalié, G. Hum, J. Chen, M. Gattrell, A. Li and J.M. Frostad, “Demonstrating Aqueous-Phase Low-Molecular-Weight-Gel Wicking of Oil for the Remediation of Oil Spilled into Surface Water”, Langmuir. 2020 10;36(44):13155-65.

A. Ebneyamini, J.R. Grace, C.J. Lim, N. Ellis, SSEH Elnashaie. “Simulation of Limestone Calcination for Calcium Looping: Potential for Autothermal and Hydrogen-Producing Sorbent Regeneration”. Industrial & Engineering Chemistry Research, 2019.

B. Hejazi, J. R. Grace, A. Mahecha-Botero. “Kinetic modeling of lime-enhanced biomass steam gasification in a dual fluidized bed reactor”. Industrial & Engineering Chemistry Research. Volume 58(29), pages 12953-12963 (2019).

A.J. Zeeuw, A. van Heiningen, J. Wearing, B. De Waele, X. Li, M. Gattrell, C. Chan, C. Brereton, B. Blackwell and T. Boyd, “Production of hydrocarbons from fast pyrolysis of Kraft black liquor: Integration with a Kraft mill”, J-FOR J. Science & Technology for Forest Products and Processes, 2018 1;7(4):31-8.

B. Hejazi, J. R Grace, X. Bi, A. Mahecha-Botero. “Kinetic model of steam gasification of biomass in a dual fluidized bed reactor: comparison with pilot-plant experimental results”. Energy & Fuels. Volume 31(11), pages 12141-12155 (2017).

B. Hejazi, J. R. Grace, X. Bi, A. Mahecha-Botero. “Kinetic model of steam gasification of biomass in a bubbling fluidized bed reactor”. Energy & Fuels. Volume 31(2), pages 1702-1711 (2017).

B. Hejazi, J. R. Grace, X. Bi, A. Mahecha-Botero. “Coupled reactor and particle model of biomass drying and pyrolysis in a bubbling fluidized bed reactor”. Journal of Analytical and Applied Pyrolysis. Volume 121, pages 213–229 (2016).

Y. Chen, A. Mahecha-Botero, C. J. Lim, J. R. Grace, J. Zhang, Y. Zhao, and C. Zheng. “Hydrogen production in a sorption-enhanced fluidized-bed membrane reactor: operating parameter investigation”. Industrial and Engineering Chemistry Research. Volume 53(14), pages 6230–6242 (2014).

A. Mahecha-Botero, T. Li, J. R. Grace, Franz Haseidl, A. Nguyen. “Experimental and computational fluid dynamic study of the change of volumetric flow in fluidized-bed reactors”. Chemical Engineering Science. Volume 106, pages 231–241 (2014).

B. Hejazi, J. R. Grace, X. Bi, A. Mahecha-Botero. “Steam gasification of biomass coupled with lime-based CO2 capture in a dual fluidized bed reactor: A modelling study”. Fuel. Volume 117, Part B, pages 1256–1266 (2014).

M. N. Danon-Schaffer, A. Mahecha-Botero, J. R. Grace, Michael Ikonomou. “Mass Balance Evaluation of PBDEs in Landfill Leachate and Potential for Transfer from E-waste”. Science of the Total Environment. 461-462, pages 290-301 (2013).

M. N. Danon-Schaffer, A. Mahecha-Botero, J. R. Grace. “Transfer of polybrominated diphenyl ethers (PBDEs) from e-waste to aqueous media”. Science of the Total Environment. 447, pages 458-471 (2013).

A. Mahecha-Botero, T. Boyd, Ali Gulamhusein, J. R. Grace, C. J. Lim, Y. Shirasaki, H. Kurokawa, Isamu Yasuda. “Catalytic Reforming of Natural Gas for Hydrogen Production in a Pilot Fluidized-Bed Membrane Reactor: Mapping of Operating and Feed Conditions”. International Journal of Hydrogen Energy. Volume 36, pages 10727-10736 (2011).

A. Mahecha-Botero, T. Boyd, J. R. Grace, C. J. Lim, Ali Gulamhusein, B. Wan, H. Kurokawa, Y. Shirasaki. “In-Situ CO2 Capture in a Pilot-Scale Fluidized-Bed Membrane Reformer for Ultra-Pure Hydrogen Production”. International Journal of Hydrogen Energy. Volume 36, pages 4038-4055 (2011).

A. Mahecha-Botero, S. Reaume, J. R. Grace, N. Ellis. “Independent research as a teaching tool in graduate chemical reaction engineering. Case study: modelling isomerization of unsaturated fatty acids with catalyst deactivation”. Education for Chemical Engineers. Volume 6, pages e1–e9 (2011).

Kyle Loutet, A. Mahecha-Botero, T. Boyd, S. Buchi, D. Reid, C. Brereton. “Experimental measurements and mass transfer/reaction modeling for an industrial NOx absorption process”. Industrial and Engineering Chemistry Research. Volume 50, pages 2192–2203 (2011).

T. Li, A. Mahecha-Botero, J. R. Grace. “Computational fluid dynamic investigation of change of volumetric flow in fluidized-bed reactors”. Industrial and Engineering Chemistry Research. Volume 49, issue 15, pages 6780-6789 (2010).

A. Mahecha-Botero, J. R. Grace, S.S.E.H. Elnashaie, C. J. Lim. “Advances in modelling of fluidized-bed catalytic reactors: A comprehensive review”. Chemical Engineering Communications. Volume 196, issue 11, pages 1375-1405 (2009).

A. Mahecha-Botero, Z. Chen, J. R. Grace, S.S.E.H. Elnashaie, C. J. Lim, M. Rakib, Isamu Yasuda, Y. Shirasaki. “Comparison of fluidized bed flow regimes for steam methane reforming in membrane reactors: A simulation study”. Chemical Engineering Science. Volume 64, issue 16, pages 3598-3613 (2009).

A. Mahecha-Botero, J. R. Grace, C. J. Lim, S.S.E.H. Elnashaie, T. Boyd, Ali Gulamhusein. “Pure hydrogen generation in a fluidized bed membrane reactor: Application of the generalized comprehensive reactor model”. Chemical Engineering Science. Volume 64, issue 17, pages 3826-3896 (2009).

A. Mahecha-Botero, T. Boyd, Ali Gulamhusein, Nicholas Comyn, C. J. Lim, J. R. Grace, Y. Shirasaki, Isamu Yasuda. “Pure hydrogen generation in a fluidized bed membrane reactor: experimental findings”. Chemical Engineering Science. Volume 63, issue 10, pages 2752-2762 (2008).

Z. Chen, Friedrick Po, J. R. Grace, C. J. Lim, Said Elnashaie, A. Mahecha-Botero, M. Rakib, Y. Shirasaki, Isamu Yasuda. “Sorbent enhanced/membrane-assisted steam methane reforming”. Chemical Engineering Science. Volume 63, issue 1, pages 170-182 (2008).

M. Gattrell, N. Gupta and A. Co, “Electrochemical reduction of CO2 to hydrocarbons to store renewable electrical energy and upgrade biogas”, Energy Conversion and Management. 2007 1;48(4):1255-65.

A. Mahecha-Botero, J. R. Grace, S.S.E.H. Elnashaie, C. J. Lim. “A comprehensive approach to reaction engineering”. International Journal of Chemical Reactor Engineering (IJCRE). Volume 5: A17 (2007).

A. Mahecha-Botero, J. R. Grace, S.S.E.H. Elnashaie, C. J. Lim. “Comprehensive modelling of gas fluidized-bed reactors allowing for transients, multiple flow regimes and selective removal of species”. International Journal of Chemical Reactor Engineering (IJCRE). Volume 4: A11 (2006).

M. Gattrell, N. Gupta and A. Co., “A review of the aqueous electrochemical reduction of CO2 to hydrocarbons at copper”, J. Electroanalytical Chemistry, 2006 15;594(1):1-19.

N. Gupta, M. Gattrell and B. MacDougall, “Calculation for the cathode surface concentrations in the electrochemical reduction of CO2 in KHCO3 solutions”, J. Applied Electrochemistry. 2006 36(2):161-72.

S.C. Cheng, M. Gattrell, T. Guena and B. MacDougall, “Electrochemical studies of gold ore processing wastewater containing cyanide, copper, and sulfur compounds”, J. Applied Electrochemistry. 2006 36:1317-26.

L. Zhu, B. Claude-Montigny and M. Gattrell, “Insulating method using cataphoretic paint for tungsten tips for electrochemical scanning tunnelling microscopy (ECSTM)”, Applied Surface Science, 2005 15;252(5):1833-45.

M. Gattrell, J. Qian, C. Stewart, P. Graham and B. MacDougall, “The electrochemical reduction of VO2+ in acidic solution at high overpotentials”, Electrochimica Acta, 2005 20;51(3):395-407.

M. Gattrell, J. Park, B. MacDougall, J. Apte, S. McCarthy and C.W. Wu, “Study of the mechanism of the vanadium 4+/5+ redox reaction in acidic solutions”, J. Electrochemical Society, 2004, 151(1):A123-130.

M. Gattrell, B. MacDougall, Y.M. Henuset and J. Fournier, “An electrochemical approach to total organic carbon control in printed circuit board copper sulfate plating baths Part II: Overall system” J. Applied Electrochemistry, 2002 32:1303-11.

Selected Conference Presentations

A. Mahecha-Botero, R. Sarrazin. “Catalytic converter replacement: Design and project execution considerations”. in XIII Round Table of Sulphuric Acid Plants (Mesa Redonda de Plantas de Acido Sulfúrico), pages 161 –174. Oral presentation: Olmué, Chile. (2022).

K. Sirikan, A. Mahecha-Botero, I. Aksenov, C.G. Cooper, H. Lu, JP Sandhu, B. Ferris, B. Gilliland, W. Vorster. “A tale of two acid tower systems”. in Sulphur 2020, CRU British Sulphur: Sulphur, Sulphuric Acid and Sulphur Dioxide. Virtual session: Nov. 9-11, (2020).

A. Mahecha-Botero, C.G. Cooper, W. Vorster, B. Ferris, A. Strickroth, M. Schumacher, E. Cooney, N. Hidalgo “Hybrid sulfuric acid plants”. in CRU Phosphates Conference. Oral presentation in: Orlando, USA. March 26, (2019).

A. Mahecha-Botero, G. Cooper, J. Orlando, A. Pedersen, H. Lu, K. Nikolaisen, JP Sandhu. “Peripherals of process gas and acid systems”. In Sulfuric Acid Workshop. Oral presentation in: Orlando, USA. March 26, (2019).

A. Mahecha-Botero, I. Aksenov, P. Carbajal, H. Lu, J. Orlando, C.G. Cooper, K. Nikolaisen, M. Mohsin. “Design, fabrication, commissioning and start-up of preheating systems”. in Sulphur 2018, CRU British Sulphur: Sulphur, Sulphuric Acid and Sulphur Dioxide. Oral presentation in: Gothenburg, Sweden. Nov. 5, (2018).

A. Mahecha-Botero, K. Nikolaisen, B. Morrison, C.G. Cooper, B. Ferris, N. Okrusko. “New emissions reduction process for side-by-side plants”. in Sulphur 2017, CRU British Sulphur: Sulphur, Sulphuric Acid and Sulphur Dioxide, pages 245-260. Oral presentation in: Atlanta, USA. Nov. 6-9, (2017).

C. G. Cooper, A. Mahecha-Botero, K. Nikolaisen. “Engineering and Installation of SO2 Catalytic Converters”. In Sulfuric Acid Workshop. Oral presentation in: Houston, USA. April 3-6, (2017).

A. Mahecha-Botero, C.G. Cooper, K. Nikolaisen, B. Morrison, B. Ferris, H. Lu, J.P. Sandhu, V. Lourenco, I. Aksenov, T. Mah, B. Chow, L. Li, J. Orlando, D. Faraji, M. Mohsin, G. Renner M., C. Díaz Acosta. “Sulphuric acid plant modernization projects: Project execution strategy and use of improved technologies. Case study: final acid tower system”. in XI Round Table of Sulphuric Acid Plants (Mesa Redonda de Plantas de Acido Sulfúrico), pages 183 –213. Oral presentation: Chile. (2016).

A. Mahecha-Botero, I. Sêco, I. Aksenov, G. Cooper, J. Wearing, J. Foan. “Use of non-condensable gases in pulp mills to produce concentrated sulfuric acid and steam”. in Tecnicelpa, Portugal. October, (2018).

A. Pereira, A. Lara González, E. Ponce Soto, C. Chan, A. Mahecha-Botero, M. Futterer. “Ion exchange technology for chloride removal from precipitator dust. Case study: Arauco Constitución mill, Chile”. Magazine ABTCP: O Papel: revista mensal de tecnologia em celulose e papel. Volume 77(3), pages 74-78, (2016).

A. Mahecha-Botero, B. Morrison, B. Ferris, H. Lu, J.P. Sandhu, C.G. Cooper, N. Chan, G. Juzenas, T. Hamilton. “Upgrading a sulphuric acid plant: project execution strategy and performance evaluation”. in American Institute of Chemical Engineers (AIChE) Conference, Chapter of the 40th International Phosphate Fertilizer & Sulfuric Acid Technology Conference, (2016). www.aiche-cf.org. Oral presentation in: Clearwater, USA. June 10-11, (2016).

A. Mahecha-Botero, K. Nikolaisen, K. Loutet, C. G. Cooper. “SO2 supplementation to stabilize metallurgical plants”. in Sulphur 2015, CRU British Sulphur: Sulphur, Sulphuric Acid and Sulphur Dioxide. Oral presentation in: Toronto, Canada. Nov. 9-12, (2015).

K. Nikolaisen, A. Mahecha-Botero, C. G. Cooper. “Strategies for reducing start-up emissions from sulfuric acid plants”. in American Institute of Chemical Engineers (AIChE) Conference, Chapter of the 39th International Phosphate Fertilizer & Sulfuric Acid Technology Conference, (2015). www.aiche-cf.org. Oral presentation in: Clearwater, USA. June 5-6, (2015).

A. Mahecha-Botero, C. G. Cooper, K. Nikolaisen. “The suitability of double-absorption and scrubbing technologies to meet new emission standards”. in X Round Table of Sulphuric Acid Plants (Mesa Redonda de Plantas de Acido Sulfúrico), pages 251 –266. Oral presentation: Punta Arenas, Chile. November 16-20, (2014).

A. Mahecha-Botero, K. Nikolaisen, C. G. Cooper, V. Lourenco, I. Aksenov. “Strong sulphuric acid system upgrades – opportunities in acid plant retrofits”. in Sulphur 2014, CRU British Sulphur: Sulphur, Sulphuric Acid and Sulphur Dioxide, pages 445-457, (2014). Oral presentation in: Paris, France. Nov. 3-6, (2014).

K. Nikolaisen, I. Aksenov, A. Mahecha-Botero, C. G. Cooper. “Improved performance with split-flow gas-gas heat exchangers”. in Sulphur 2014, CRU British Sulphur: Sulphur, Sulphuric Acid and Sulphur Dioxide, pages 389-401, (2014). Oral presentation in: Paris, France. Nov. 3-6, (2014).

Gary Lee, C. G. Cooper, A. Mahecha-Botero and K. Nikolaisen. “Steady state and dynamic simulation of sulfuric acid plants”. in American Institute of Chemical Engineers (AIChE) Conference, Chapter of the 38th International Phosphate Fertilizer & Sulfuric Acid Technology Conference, (2014). www.aiche-cf.org. Oral presentation in: Clearwater, USA. June 6-7, (2014).

A. Mahecha-Botero, C. G. Cooper, I. Aksenov, K. Nikolaisen. “Debottlenecking metallurgical and sulphur-burning sulphuric acid plants to increase capacity and reduce emissions”. in Sulphur 2013, CRU British Sulphur: Sulphur, Sulphuric Acid and Sulphur Dioxide, pages 157-174, (2013). Oral presentation in: Miami, USA. Nov. 4-7, (2013).

K. Nikolaisen, H. Davis, D. Missions, A. Mahecha-Botero. “Tail gas SO2 scrubbing using fluidized bed technology”. in Sulphur 2013, CRU British Sulphur: Sulphur, Sulphuric Acid and Sulphur Dioxide, pages 147-158, (2013). Oral presentation in: Miami, USA. Nov. 4-7, (2013).

C. G. Cooper, A. Mahecha-Botero, K. Trenkel, K. Nikolaisen, J. Orlando, A. Guenkel. “Design of brick-lined absorption towers in sulfuric acid service”. in Sulphur 2013, CRU British Sulphur: Sulphur, Sulphuric Acid and Sulphur Dioxide, pages 183-201, (2013). Keynote presentation in: Miami, USA. Nov. 4-7, (2013).

A. Mahecha-Botero and C. G. Cooper. “Clean and efficient sulphuric acid and sulphur dioxide manufacture”. in American Institute of Chemical Engineers (AIChE) Conference, Chapter of the 36th International Phosphate Fertilizer & Sulfuric Acid Technology Conference, (2012). www.aiche-cf.org. Oral presentation in: Clearwater, USA. June 8-9, (2012).

K. Loutet, A. Mahecha-Botero, T. Boyd, S. Buchi, C. Brereton. “Incorporation of oxidation enhancement through hydrogen peroxide addition into a tested mass transfer/reaction model for an industrial NOx absorption process”. in Book of ACS Symposium Series 1155: Chemistry, Process Design, and Safety for the Nitration Industry, Oxford University Press, Chapter 8, pages 95-105. 243rd American Chemical Society (ACS) Conference, Division of Industrial and Engineering Chemistry. http://abstracts.acs.org/chem/243nm/program/view.php. Oral presentation in: San Diego, USA. March 25-28, (2012).

C. G. Cooper, A. Mahecha-Botero, K. Nikolajsen, B. Ferris and A. Guenkel. “High performance equipment designs for sulphuric acid plants”. in IX Round Table of Sulphuric Acid Plants (Mesa Redonda de Plantas de Acido Sulfúrico), pages 100 – 106. Oral presentation: Antofagasta, Chile. October 14-17, (2012).

M. N. Danon-Schaffer and A. Mahecha-Botero. “Influence of chemical degradation kinetic parameters on the total debromination of polybrominated diphenyl ethers (PBDEs) in a landfill system”. in Organohalogen Compounds, Vol. 72, 2010. Proceedings of the 30th International Symposium on Halogenated Persistent Organic Pollutants, DIOXIN 2010.
http://www.dioxin20xx.org/pdfs/2010/10-1041.pdf. Oral presentation in: San Antonio, Texas, U.S.A. September 12-17, (2010).

K. Loutet, A. Mahecha-Botero, T. Boyd, S. Buchi, D. Reid, C. Brereton. “Development of a rate-based mass transfer/reaction model using data from an industrial NOx absorption process”. in 10th American Institute of Chemical Engineers (AIChE) Annual Meeting (2010). Oral presentation in: Salt Lake City, USA. November 7-12, (2010).

A. Mahecha-Botero, F. Haseidl, A. Nguyen, T. Li and J. R. Grace. “Investigation of change of volumetric flow in fluidized-bed reactors”. in Fluidization XIII, “The 13th International Conference on Fluidization – New Paradigm in Fluidization Engineering”, Sang Done K., Yong Kang, Jea Keun Lee and Yong Chil Seo, Eds, ECI Symposium Series, pages 535-542, (2010). http://services.bepress.com/eci/fluidization_xiii/. Oral presentation in: Gyeong-ju, Korea. May 16-20, (2010).

A. Mahecha-Botero, J. R. Grace, S.S.E.H. Elnashaie, C. J. Lim. “Time scale analysis of a fluidized-bed reactor based on a generalized dynamic model”. in Fluidization XII, “The 12th International Conference on Fluidization – New Horizons in Fluidization Engineering”, Franco Berruti, X. (T.) Bi, Todd Pugsley, Eds, ECI Symposium Series, Volume RP4, pages 623-630, (2007). http://services.bepress.com/eci/fluidization_xii/76. Oral presentation in: Harrison Hot Springs, BC, Canada. May 13-18, (2007).

A. Mahecha-Botero, J. R. Grace, S.S.E.H. Elnashaie, C. J. Lim. “A generalized dynamic model for fluidized-bed reactors and its application to the production of pure hydrogen”. in “Asian Pacific Confederation of Chemical Engineering Congress”, 11th APCChE, (2006). Oral presentation in: Kuala Lumpur, Malaysia. August 27-30, (2006).