Abstract commercialization of guayule holds promise not only as an additional source of natural rubber but also for the utilization of its byproducts viz. Seventy percent of guayule wood fiber and 30% of the hdpe powder were used for the composites. The bagasse is the fibrous byproduct of sugarcane stalks milled for juice extraction. Us4542191a rubber additives derived from guayule resins and. For guayule, the bagasse consists of the woody stem material left after resin and rubber extraction at the processing facility. Termite resistance of biobased composition boards made. After being crushed and rolled, it goes to settling tanks where these worms form as the bagasse. Preliminary investigation on the natural durability of.
Whalenb, katrina cornishc a eastern regional research center, agricultural research service, us department of agriculture, 600 e. Performance of wet and dry bagasse combustion in assalaya. Board composition was homogenous with no orientation of fibers. Guayule bagasse was used to fuel the early processing plants in mexico and unprocessed shrub was used to fuel various processes in the mexican mining industry. In the factory the guayule shrub is put through various choppers and crushers while mixed with liquids. Boards containing cotton gin byproducts to guayule bagasse ratios of 7525 and 5050 obtained similar termite resistance as the commercial osb. Guayule rubber and latex products are not available in the market largely because the raw material cost is higher than the current sources produced in southeast asia and other tropical countries hevea brasiliensis.
Thus, the guayule wood and bark fibers can be considered a new source of plant biomass that may be used as a direct substitute for forestbased wood fiber. Characterization and evaluation of guayule processing. The sustainable bioeconomy for arid regions sbar is a multilevel research project that will cultivate two desertdwelling crops, guayule and guar, for a sustainable bioeconomy. However, little information is available on the chemical composition of the wood and bark tissues of guayule p. Guayule bagasse would provide 8,000 to 9,000 btu per pound, about the same as charcoal. Guayule parthenium argentatum gray is an interesting alternative and renewable source of rubberlatex which has been used in the past. Parthenium argentatum, waxes, extraction, chemical composition, physicochemical properties, fractionation, spectral analysis abstract. Freeflowing guayule resin and bagasse mixtures and their. These results reflect the different plants composition of wild guayule stands and are in agreement with several other reports. Visual grading of tested specimens revealed all six cotton gin byproduct and guayule bagasse composition boards and the treated mdf showed better ratings than the commercial osb. Guayule bagasse, converted and upgraded to hydrocarboncompatible biooils 17 boateng et al. Characterization and conversion of guar and guayule bagasse as potential resources for biofuels production. Symposium on thermal and catalytic sciences for biofuels and biobased products. Resultsanddiscussion from kinana and guenaid sugar companies eljack, mohamed and ibrahim, bagasse ash from kinanaandguenaid a scientific journal of comsats science vision vol.
Gasse is the dry pulpy fibrous residue that remains after sugarcane or sorghum stalks are crushed to extract their juice. Niaura envisions using the woody material, the bagasse, as a fuel or as a feedstock for cellulosic biofuels. Download citation chemical constituents and physical properties of guayule. Coleseparation of guayule rubberresin extract from guayule bagasse by water addition postextraction. The principal constituents of wood are the polysaccharides, lignin, and extracts. Combined, guayule perennial and guar annual feedstocks can provide biomass year round for. Chemical and morphological characterization of sugarcane. Hence interest in guayule has been revived once again. Chemical constituents and physical properties of guayule wood and. The present paper discusses the isolation, characterization and possible applications of one of the byproducts guayule wax. Compositions of guayule bagasse before and after different pretreatment methods.
The gross calorific value of wet bagasse depends mainly on the water content of the bagasse. Shop staples for sustainable earth by staples composition. Vulcanized and unvulcanized rubber compositions containing guayule resin. Pdf termite resistance of biobased composition boards. Resins have particular promise for use as an adhesive and a tackifier for tires, she. Potential applications of guayulins to improve feasibility of guayule. The 1h and c nmr spectra were integrated over spectral regions to quantify classes of carbon and hydrogen atoms in each biooil sample. Guayule biomass possibly can replace or supplement traditional sources of raw materials such as petroleum and timber. The biooil is then produced onsite costeffectively from the finely ground opportunity feedstock guayule bagasse which is created as a byproduct of latex extraction. Structure of guayulins sesquiterpene esters present in guayule resin. Guayule, on a similar scale, using a combination of water extracted latex energyene process, not bridgestones solvent extraction, which produces a much lower energy content bagasse and pyrolysis piedmont bioproducts process would produce, annually, 2.
Later the worms are dried and go through the rollers to form a cake of rubber. Evaluation of composition, characterization and enzymatic hydrolysis of pretreated sugar cane bagasse 25 brazilian journal of chemical engineering vol. After being crushed and rolled it goes to settling tanks, where these worms from as the bagasse sink to the bottom. Guayule composition boards approximately 279 by 279 mm were made with a. Guayule resins show promise in market applications including adhesives and wood protection, while bagasse is a potential feedstock for industrial sugars suitable for biofuels and chemical precursors, the tire. Its more and more evident that for guayule to become sustainable, the coproducts must be commercialized, she said. In the processing of guayule parthenium argentatum for bulk rubber production using solvent extraction, two residue streams are produced. The resin, bagasse, rubber and latex from the guayule can figure 2.
All composite boards were pressed on a steamheated hydraulic press at about 160 ec at pressures of between 7. In addition, threelayered boards c1 consisting of 25% guayule bagasse upper layer, 50% cgb middle layer, and 25% guayule bagasse bottom layer were made. The fibre is passed through sieves to remove fine particles which may be used as a filter aid later in the process, or as a feedstuff pith bagasse. The freeflowing particulate compositions of this invention comprised of guayule bagasse impregnated with guayule resin can be used to facilitate plant cultivation, particularly guayule plant cultivation, by adding the composition to the soil at the locus of the plant roots that is, in and around plots where the plants grow, typically in an. Guayule rubber has the potential to replace hevea hevea brasiliensis rubber, the most common natural rubber, and synthetic rubber, which is derived from petroleum, in a wide. The ncv dry bagasse in assalaya sugar factory resulted as ncv18071. In order to enhance the economic viability of guayule as an industrial crop, valueadded use of the residues is needed and has the potential to reduce gross rubber production costs. Bridgestone and versalis partnering to expand guayule. A bagasse fired boiler equipped in a sugar mill is producing 80 mw of heat steam power at the operating efficiency of 62%. Comparative life cycle assessment of conventional and. Fticr ms expands the characterization range of guayule resin compounds. The energy independence and security act is calling for the production of 36b gallons per year of biofuels by 2022.
Chemical constituents and physical properties of guayule. Termite resistance of biobased composition boards made from cotton byproducts and guayule bagasse. Large quantities of cotton gin byproducts cgb, also known as cotton gin trash or cotton gin waste, are being produced across the cotton belt of the united states annually. For guar, bagasse consists of the plant stem, leaf, and bean pod material left on the field after combine harvesting.
Visual grading of tested specimens revealed all six cotton gin byproduct and guayule bagasse composition boards and the treated mdf showed better ratings than the commercial osb and pine lumber. Commercialization of guayule holds promise not only as an additional source of natural rubber but also for the utilization of its byproducts viz. A stabilizing composition and process for guayule type rubbers which can be directly applied to guayuletype plants or shrubs before processing thereof, or to guayuletype rubber miscella, rubberresin miscella, etc. Characterization of various fastpyrolysis biooils by nmr. A nonpenetrating mechanical fastener for securing a flexible sheet of an elastomeric material to the upper surface of a roof via the use of a plurality of such fasteners, each of which includes upper and lower members, wherein the latter are anchored to the roofing surface. Guayule resins show promise in market applications including adhesives and wood protection, while bagasse is a potential feedstock for industrial sugars suitable for biofuels and chemical precursors, the tire maker said.
This sustainable earth by staples composition notebook is 80 percent bagasse, a rapidly renewable resource, making it a great option for supporting sustainable paper production. Bridgestones experimental guayule farm in eloy, arizona. Unlike rubber produced from tropical plants, the latex in guayule is. Utilization of guayule bagasse 80% of total dry biomass and resin up to 10% of total. Guayule may also prove to be an economical, environmentally friendly source of yet another prized commodity. In the factory the guayule shrub is put through various choppers and chrushers while mixed with liquids. No differences were noted among the total termite surviving days for the six cotton. Energydense liquid fuel intermediates by pyrolysis of guayule parthenium argentatum shrub and bagasse akwasi a. Guayule grown as a perennial crop with semiannual harvests is essentially paid for by the value of the latex. Guayule bagasse has high energy content 2224 mjkg, less moisture 0. Niaura envisions using the woody material, the bagasse, as a fuel or.
Benefits of guayule rubber in automobile tires figure 1. The chemical composition of untreated bagasse samples and of samples submitted to acid sulfuric acid h 2 so 4, 1% and alkaline pretreatments naoh 0. Termite resistance good for boards made from 100% guayule bagasse. Energydense liquid fuel intermediates by pyrolysis of. That energy can be made from the groundup stems and branches, called bagasse, that are left after their latex has been removed. Guayule rubber gets ready to hit the road april 20, 2015. Guayule bagasse gb has been shown to have termite control properties, and a combination of cotton gin and guayule wastes could also have. The yield and composition of the resin extracted from guayule will depend upon the choice. Bagasse is a soft, lightbrown, sawdustlike material, says ars chemist colleen m. Identification of guayule regions in northern mexico. Guayule composition boards approximately 279by279 mm were made with a specific gravity of 0.
Influence of guayule resin as a biobased additive on. Guayule, a desert rubber plant arizona daily independent. Typical composition of passenger tire adapted 4 be used to make a wide variety of products 1 references. Guayule rubber patents and patent applications class 528. Pdf termite resistance of biobased composition boards made. Seasonal effects on guayule resin composition journal of. The firm is also exploring markets for the terpene resins that make up roughly 10% of. Chemical composition of guayule parthenium argentatum. The international research group on wood preservation section 4 processes and properties. Today, bagasse is still being considered as a cogeneration fuel, as well as, a feedstock for gasification, conversion to liquid hydrocarbons, as a source of fermentable sugars, and as a fiber. Besides latex yield, the ars has turned serious attention to the commercial possibilities of guayule resins and bagasse pulp, mcmahan said.
Presentations sustainable bioeconomy for arid regions. Guayule plant biomass little information is available on the chemical composition. A supply of guayule bagasse which was accumulated from experiments dealing with latex extraction in guayule plants was also collected. Physiologic characteristics the results for dry weight, percent rubber and percent resin, iodine value and protein content in the bagasse are shown in table 2. Decrease of bagasse moisture enhance boiler efficiency due to the increasing of the calorific value.
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