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Current and Future Assessment of the Regional Market Potential for Scrap Tire Derived Recycled Rubber Dr. Martin H. Bremer Bremer Dr. David Güemez Castorena Ing. Ruben Cantú Damas The main objective of this project is to follow-up on the Goal 3 of the Border 2012 Program: Goal 3. Reduce ground pollution To increase environmental awareness, sensitivity and citizen responsibility regarding solid waste and water related health issues. 2 Objectives to be Achieved with this Project • To assess the current market at the Border 2012 4 State Region, for scrap tire derived rubber, or its derivatives, such as: – Ground rubber, micro-pellets, tire strips, etc. • as well as the future market, identifying technologies and applications. • commercial and experimental prototypes that may use such material considering the • Volume generation and processing capabilities that may be implemented as close to the site as possible • To solve the build-up issue for the long term, • and in turn, generating local jobs. 3 Regional Demand Features for new and used tires New tire shipments imported into México (Modern Tire Dealer, 2011) Type of Tire Passanger Vehicles Qty* 13.1 5.1 2.2 Light trucks Medium and heavy trucks *Qty in millions of tires Supply of new tires in Mexico in 2004 was 12,953,000 Vehicles per State (INEGI, 2012) State 2005 2006 2007 2008 2009 2010 Average Baja California Sonora Chihuahua Coahuila Tamaulipas Nuevo León 1,187,451 599,007 1,001,292 622,732 971,514 1,451,581 1,281,923 709,713 1,105,386 626,344 1,054,922 1,605,120 1,362,035 798,405 1,099,296 646,417 876,005 1,743,646 1,442,539 855,110 1,135,634 703,447 892,820 1,812,944 1,475,939 889,176 1,181,161 679,745 932,874 1,890,350 1,512,796 928,336 1,207,220 707,121 969,753 1,975,586 1,377,114 796,625 1,121,665 664,301 949,648 1,746,538 Total 4,381,996 4,778,288 4,782,158 5,029,550 5,158,895 5,325,226 4,909,352 8 Regional Demand Features for new and used tires Scrap Tire Factor per type of vehicle (Cámara Nacional de la Industria Hulera). Automobiles Light trucks Heavy trucks 1.29 tires/vehicle per year 1.82 tires/vehicle per year 2.59 tires/vehicle per year 9 Regional Demand Features for new and used tires Scrap Tire Generation per State as of 2010 State Baja California Sonora Chihuahua Coahuila Tamaulipas Nuevo León Total Avg-Number of Vehicles 1,377,114 796,625 1,121,665 664,301 949,648 1,746,538 4,909,352 Generation of Scrap tires 1,776,477 1,027,646 1,446,948 856,948 1,225,046 2,253,034 6,333,064 Annual Generation of Scrap Tires as of 2015 State Baja California Sonora Chihuahua Coahuila Tamaulipas Nuevo León Automobiles 1,402,476 701,068 951,166 534,180 680,759 1,759,223 Trucks 17,800 6,816 5,588 78,547 7,412 16,998 Light trucks 498,789 368,854 405,896 257,494 303,275 660,436 Total 1,919,065 1,076,737 1,362,649 870,220 991,446 2,436,657 Tire Generation 2,475,594 1,388,991 1,757,817 1,122,584 1,278,965 3,143,288 To obtain the tire generatio datum, the 2012 value and projected value were taken and multiplied by the automobile scrap factor. 10 PRIOR STUDY: Assessment of the Current and Future Potential Market for Tire Derivate Ground Rubber in Mexico (2005) • 275 companies were contacted, from the following industires: – tire producers, molded products, athelitic fields, cement producers, and asphalt producers. – Of these 275, 110 were interviewed with a survey • Only 11 companies use recycled rubber (2005). • Mexico’s potential market for ground rubber was 3,373 tons per month (2005) – considereing only a particle size of less than 0.5mm • Mexico’s potential market for ground rubber was 44 tons per month (2005) – considereing only a particle size of between 0.5 -1.0 mm Source: Reyna, R. (2005). Apreciación del Mercado Potencial Actual y Futuro del Polvo de Llantas en México. Monterrey, N.L.: Centro de Calidad Ambiental, ITESM. Sponsor: Grupo Domos 11 Market Research Relevant Point for the survey, its validation and application: •Research Focus. Phone surveys were applied among companies that are found in the database created by the Environmental Quality Center at the Monterrey Tech. •Sample Profile. Companies that use or could use scrap tire rubber directly or indirectly , that their facilities are located in any of the border states: Coahuila, Nuevo León, Tamaulipas y Chihuahua. The survey questionaire is attached herein: 12 Market Research 976 individuals from the list of companies, of which 485 completed the survey at least partially; 103 rejected the interview, 14 were not the right persona, 306 did not take the phone call or was not possible to conatact them, 3 were wrong numbers, 14 were cases in which the telefonowas not available, and 51 were dropped suveys, where the interview as not completed. Status of contacted companies The 485 companies that participated in the study, belong to the following industries: 125 Manufacturing, 113 Commercial, 247 Services 50% 31% 11% 5% 113 Comercial 247 Service Industry. 1% 1% 0% Industry 0% Manufacture Commercial 31% 69% Services 13 Market Research Because of the nature of the study, the companies belonging to the Comercial Industry had to be excluded, thus the sample dropped to 372 records. Line of Business of the industrial companies (372 interviews) 58% 24% 7% Construction Other 6% 5% Liners, Insulators, Molded Products Asphalt and Readyand paint Mix concrete. Of the other lines of business, the most mentioned were: Production of • Oils mentioned 33 times, • chemicals: 11, • petrochemical products: 4 • packing and seals: 3, • • • • Water treatment: 5 Polyethylene bags: 2, Synthetic Fiber 2 Rossin, Resine 1 14 Market Research 29 of the 372 companies use rubber to manufacture their productos or provide their services Companies that use rubber(total of 372 companies) with rubber: Types of products the surveyed companies manufacture Yes 8% Product No 92% Type of Rubber Companies Use 15 10 Synthetic, 14 5 Both, 10 Natural, 5 0 Natural Synthetic Both Frecuencia % Packing Seals 7 26% Other 3 11% Asphalt strip 2 7% Polyutherane 2 7% Paint and liners 2 7% Building materials 2 7% Rollers 2 7% Rubber foam 1 4% Civil Works 1 4% Weather proofing 1 4% Vaccum Sweepers 1 4% Power lines 1 4% Tarps. 1 4% Hoses 1 4%15 Market Research List of Rubber Suppliers Mentioned 15 of the companies who responded the suvey use natural rubber, of which 86% use between 1 and 2 tons per month, while the rest uses more than 2 tons. Most common prices per ton of virgin rubber is between $10,000 and $30,000 MXP/ton. None of the people surveyed, who use natural rubber, know the size of the particle they use, thus no ratio was identified between the price paid and the particle size. When asking about the adequate presentation of the recycled scrap tire rubber to be used in their process, 6 responded they need ground rbber, 3 need shredded rubber, and 3 need the whole tire. (Three did not respond). Suposing the required presentation of recycled rubber is the same as they currently use with natural rubber, there was no relationship found between the price paid and te presentation of the rubber/stock. Vendor Suministros y Especialidades Químicas Dupont Frequency % 3 11% 2 7% Brentac 1 4% Cartonera de plástico 1 4% Cici plásticos 1 4% Colombinaire Monterrey 1 4% Comercial Vicsol 1 4% 1 4% Comercializadora Los Ángeles En la obra 1 4% Euzkola 1 4% Galván 1 4% Hulera Mexicana 1 4% Materiales Jerez 1 4% ML Tec 1 4% Moix S.A. de C.V. 1 4% Oxiasfalt 1 4% PEMEX 1 4% Promoplas 1 4% Rehijold 1 4% Particular 1 4% SKR 1 4% Uniroyal 1 4% LCY Texcon 1 4% Industrias Bengar 1 4% Polioles de México 1 4% 16 Market Research The polymeres mostly used by the surveyed companies are the ABS, used by 7 companies, the SAN, used y 8, and the Polybutadiene, used by 23 Polymeres used 42% 15%13% 11% 9% 5 companies (of the 29 who use rubber) have soving used it is because their productio process “does not require it” Reasons for not using recycled rubber 44% 22% 11% 11% 6% 6% 4% 2% 2% 2% 2% Of the 5 companies who have used recycled tire rubber as raw material, 4 mentioned they used it shredded, and one ground. 17 Market Research • Of the 23 companies, 6 mentioned they would be intereste in incorporating it into their processes • Products manufactured by companies who showed interest are: rollers, packings, asphalt pavement, seals, tarpaulins, liners. • Volume of rubber used by these companies varies between 200 K up to 2000 K/month. • The main reason why they would not be interested is because they consider this material can not be incorporated into their products Desired presentation and companies interested in using recycled rubber Whole tire 33% Strips 17% Rubber presentation Shredded 33% Ground Rubber 17% Products mentioned as a possible use of this raw material: Asphalt, packing, flooring, liners, bumps and tarps. 18 Market Research 19 companies responded that they would like for there to be an incentive if they use the ricycled tire rubber as raw material. Types of Incentives 55% 23% 9% Tax or financing Others Cost support 9% 5% Credits and Grants Recycling support 19 Scrap tire rubber use and processing technologies Technology Rebuilt Definition Considerations Depneidng on the renovated surface, 3 systems can be identified: Replace old tires and • Integrated rebuit: Crown and sides are rebuild its original renewed. structure, turning it into a • Semi-integrated rebuilt: Crown and part tire similar to the new one of side face is rebuilt. • Only the crown is rebuilt Advantages • Saves on raw material, since only 25% of new material is added. Re • Reufacturing costs 30-50%. Devulcanization processes can be divided in two groups: • Physical Processes: Uses external source of energy. (Mechanical, thermo-mechanic, Transforms rmoplastic crio-mechanic, microwave and ultrasound. Devulcanization material (non vulcanized • Chemical Processes: Most commonly Decomposes tire (Regeneration rubber) in a thermostable used in industry. Chemical agents used ar components Techniques) hard and elastic material normally disulfures or organic mercaptanes used for high temp mechanic (vulcanized rubber) work, besides other inorganic agents and other type of processes, sucha a fase transfer catalysis. Disadvantages Limited number of rebuilts. Reduces quality and durability. Rubber obtained with physical properties of lower quality than the original material. 20 Scrap tire rubber use and processing technologies Technology Definition Considerations Advantages Disadvantages Consists of two technologies: Reclaiming Regeneration Technologies Conversion of 3-D crossweave to a 2-D linkage, resulting in a soft, • Shredded rubber is gound into fine Allows reuse of rubber It’s important to have a plastic, low-module material, particles (powder). components of scrap tires for good choice of raw processable and vulcanizable, • Powder is subjected to heat along manufacturing of different material and process thermoplastic materials that conditions simulate the properties of virgin with other chemicals, followed by elements. intensive grinding by friction. rubber. • Decomposition of tire PyrolysisThermolysis components: Pyrolytic gases hav a high In this process tire chips (1 -3 cm) content of calorifi power. are heated at a moderate temp of Carbon black can be reused Physical-chemical Process 400 . 800°C, with limited or no to manufacture new Where organic materila or oxygen. Thermal degrading of products. solid waste decomposes by material decomposes the tire, where Does not generate heat, in an oxigen deficient the organic volatile elements contaminant gases, such as atmosphere, and transforms (rubber chains) decompose into NOx, sulfates, but generate into a mixture of liquid HC, gases, liquids, while inorganic residual forms of substances fuel gas, solid carbon waste elements (chiefly steel and carbon such as nitrogen gas, and and water black remain as a solid waste. The solid sulfure. Chlorine and pyrolytic gases have a great caloric Fluor are reduced to power (68-84MJm-3). chlorines and fluorines that can be precipitated with calcium • Issues with the application orf condensate oils. Product Quaity depends on process conditions Investment requires for a pyrolytic plant is high, although the investment can be recovered by using the by-products particularly as fuel in the generation of steam and/or electricf power. 21 Scrap tire rubber use and processing technologies Technology Definition Mainly consists of rotating blades that shred the tires. Then, other Room temp processes are added, such a Grinding (Size magnetic separators, granulators, reduction sieves. These are repeated several technology) times depending on the particle size required. Considerations Advantages Disadvantages For a recycl.ing plant to operate efficiently it must be proportional to the volume of scrap tires at the zone, considering that it is not costeffective to transport the tires for more thamn 300 Km. It can reduce High cost because of sizes for 500 mm continuous maintenance of to lowe than 500 equipment m [sic] The use of liquid nitrogen in • High cost of liquid nitrogen At very low temp (-200°C) rubber cryogenic griniding is necessary use, because two tons of LN2 becomes brittle as it loses its to manufacture high qualilty are needed per ton of tires. elasticity, thus it is easyly products. The powdered material It allows particles Cryogenic disintegrated. In case Cryogenic is transferred to a criogenic of lesser size, • Plastic ground with a Grinding (Size grinding , one grinding stage worm wher the material is softer suface and typical particle size rarely reduction suffices to separate the sprayed with liquid nitrogen to les superficila meets the required spec to technology) components and obtain a wide cool it. oxidation. be used in many applications range of granulometry. Then, the product and liquid regarding its characteristics nitrogen are introduced to the and certain functional mill. effects. 22 Ground rubber tiles and flooring • • • • Little development in Mexican floor market High venture capital (mechancal or cryogenic) High maintenance costs Several facilities have been unseccessful in the border region. Tire Ground Rubber Applications Advanages of ground tire asphalt: Lower cost throughout the life cycle Noise reduction Long term performance improvement Fracture resistance Aging resistance Environmental R.Garry Hicks, 2005 R.Garry Hicks, 2005 Scrap tire rubber use and processing technologies The table with more than 13 applications of scrap tire rubber is in the following attached file: Main applications: •Cement Additives for construction •Insulation (thermal and acoustic) •Septic pits drainage •Landfill drainage •Erosion control • Dikes and levees •Fillers •Additives for asphalt •Stabilizers for clay ground and slopes •Paints and primers •Athletic Fields and synthetic carpets •Shoes •Recreational items •Furniture •Auto parts •Molded products •Alternate fuels 27 Before raining [email protected] After raining D.R. ©2006 ITESM, Eugenio Garza Sada 2501, Col. Tecnológico, Monterrey, N.L. C.P. 64849. “Se prohíbe la reproducción total o parcial de este documento por cualquier medio, sin el previo consentimiento otorgado por escrito del Instituto Tecnológico y de Estudios Superiores de Monterrey a cualquier persona y/o actividad que sean ajenas al mismo” [email protected] Housing with scrap material • Use of tires and other scrap material for housing projects – Isla Mano de León, near the Port of Mezquital. With the support of the local DIF and the "Solo por ayudar" Foundation, the first housing project, built by local fishermen, under the supervision of engineers who are overseeing the program, is already at 80% completion. It consists of two bedrooms and two bathrooms. Fotos: Mauro de la Fuente, junio 06 Stability for slopes Tire strips Applications Some examples of applications that are being used by different industries. SEMARNAT 2005 [email protected] Housing Projects with scrap material • The use of tires and other scrap material to improve the conditions of very low income homes. – A survey was performed to learn of needs and concerns. – 10 homes were surveyed in the Alianza Neighbourhood – An experimental “home" was set up: 1 cubic meter altogether, using wood, nails and cardboard – Side cuts were installed over the roof or the hous (1 m-sq), which were fixed with nails over the surface. – Weatherproof tests were conducted during several rainy days. Cross section view of a tire Each tire is cut in half Sides or the tire are cut in four sides and two crown pieces Artisan Uses of Tires $15 $15 • • Analysis of the Life Cycle and the Energy Balance For energy balance, different incineration scenarios were set to recover its caloric power, because it is commonly used thoughout the region. Transportation for 100 Km, 500 Km, 1,000 Km, 2000 Km and up to 10,000 Km was contemplated. In the energy balance, we try to determine the amount of energy that may be recovered from the manufacturing process of the tire, by using the tire rubber, in a combustion process. Energy needed to manufacture a new automobile tire. Energy that may be obtained from the rubber of a tire, depending or its application - combustion 35 Analysis of the Life Cycle and the Energy Balance Comparison of the energy content of various fuels --including tire rubber.. Fuel Carbon (sub Bituminoso) Carbón (bituminoso) Wood (wet) CDLL (Tire derived fuel) Tire T Tire (EPA-1997) BTU/lb 10500 Energy Content J/kg kj/kg Mj/kg 2.44E+07 24423 24.423 kwh/kg kcal/kg 6.7842 5833.3 12700 4375 2.95E+07 1.02E+07 29540 10176 29.54 10.176 8.2056 7055.6 2.8267 2430.6 15500 3.61E+07 36053 36.053 10.015 8611.1 14617 3.40E+07 34000 34 9.4444 8120.8 15983 3.72E+07 37177 37.177 10.327 8879.6 For the balance calculation we considered that the average content of an automobile tire is 34,000kJ/kg. Also, the energy needed to produce one ton of tires using synthetic rubber is arond 120 GJ. Ver referencia en http://www.wb-hsm.com/Need.htm, consultada el 6/6/2012. [2] Technical Guidelines on the Identification and Management of Used Tyres, Basel Convention, December 1999, Basel Switzerland. [3] IBIDEM [4] IBIDEM [5] Comisión de Cooperación Ecológica Fronteriza, Propuesta de Estrategia y Política Pública para el Manejo Integral de Llantas de Desecho en la Región Fronteriza, Octubre 2008, Ciudad Juárez, Chihuahua, pág 18. [6] EPA Office of Air Planning and Standards and US-Mexico Border Information Center on Air Pollution; Air Emissions from Scrap Tire Combustion; 1997; Tabla 17, pág 33. 36 Analysis of the Life Cycle and the Energy Balance • For energy balance we estimated the average consumption of a truck as 2,426 KJ/Ton-Km. • We estimated the internal consumption of a whole tire is 50%, a cut tire, is 70%, a shredded tire (1.5” chips) is 80%, and ground (mesh 10) is 90% 37 Energy Balance Scenario Scenarios considering transportation of scrap automobile tires for 2000 km, which have been cut with machines that use two 125 Hp motors; the energy that this mass of tires can generate, minus the energy required to transport and cut the tires is represented by the blue line. The red line represents the energy needed to produce the same amount of tires, using the cold emulsion technique, and the energy needed when using the oil technique (green line). Recovered energty is less than as compared to tire manufacture Recovered energty is greater than as compared to tire manufacture The energy needed to produce a ton of tire starting from oil is greater than 3.5x109KJ. 39 Conclussions – The results of the survey are lean, possibly due to: • Surveys were done among employees from commercial departments, who do not have technical knowledge of the productiion pocesses. • Companies apply pre-established productive processes, previously set by the machine manufacturers, and the need to change raw material has not been considered. • In businesses databases, it is not easy to distinguish those business sectors that use rubber form those that do not use it. • It is possible that there are few companies in the region that use rubber in their processes. – We found a great diversity of technologies that use scrap tires (whole, stripped, ground…,) that have been implemented mostly only locally; somo are experimental and other are shallow commercial successes. • Energywise, the distance for the tires to transported and then to be used as alternate fuel, has little bearing on the amount of energy recovered. 41 Recommendations – To carry out awareness programs with alternatives that introduce recycled rubber derived from scrap tires. – Interview production personnel, since they know the technical part of the process. – Perform a similar study to include the region of El Bajio (Guanajuato) and the State of Mexico. – Adoption of new technologies is usually introduced by entrepreneurs and/or visionary investors who promote the technoloty until they achieve its adoption, thus, we propose: • To incentivate the creation of new companies and support the existing ones to include recycled rubber as raw material. • To incentivate research of high value added applications for recycled tire rubber and support industrial testing. – Recurrent similar studies are recommended to prove the effectiveness of the programs and incentives. 42 Advantages of pursuing a new life for scrap tires}: • Tires are practically indestructible. They can resist: : • High/Low temperatures • Impacts, High centerfuge forces • Moisture and chemical products… • As a raw material, it is a very flexible material, light, resistant, durable, cheap and very abundant!!! • If located in the wrong place or if handled poorly, it can become a problem. [email protected] This project was funded by the Border 2012 grant, with resources from the US-EPA, managed by the Border Environmental Cooperation Commission-BECC. Our Appreciation and Acknowledgement to • • • • • • • • Environmental Protection Agency – EPA Comisión de Cooperación Ecológica Fronteriza – COCEF Secretaría de Medio Ambiente y Recursos Naturales - SEMARNAT Instituto Tecnológico y de Estudios Superiores de Monterrey –ITESM Centro de Calidad Ambiental – ITESM Campus Monterrey Modern Tire Dealer (information on tire imports to México) Green Consulting Group (surveyor) All companies who responded to the survey 44 THANK YOU for your attention!! [email protected] D.R. ©2006 ITESM, Eugenio Garza Sada 2501, Col. Tecnológico, Monterrey, N.L. C.P. 64849. “Se prohíbe la reproducción total o parcial de este documento por cualquier medio, sin el previo consentimiento otorgado por escrito del Instituto Tecnológico y de Estudios Superiores de Monterrey a cualquier persona y/o actividad que sean ajenas al mismo”