Sunflower husks

Multi-parameter Assessment of Sunflower Husk-sawdust Layer Hydraulic Resistance... 

AHSTRACT Modelling and computing of thermal biomass treatment processes involving thick layers requires that the gas permeability and hydraulic resistance of such layers be known. The paper presents the results of experimental research into the hydraulic resistance of the thick layer comprised of two biomass varieties sunflower husks and sawdust. The research was conducted within the range of Re alteration from 5-70, and layer porosity change 0.2-0.7,... 

A series of experiments has been undertaken with the view to determine hydraulic resistance of sunflower husks and sawdust of coniferous wood. 

Figure 2 Experimental data on the sunflower husks layer hydraulic... 

Furfural is the starting material for the industrial production of almost all furan compounds and is industrially produced from a pentosan-rich biomass like corn cobs, oat hulls, almond husks, cottonseed hull bran, birch wood, bagasse and sunflower husks in large quantities (>200,000 mt/a). Several process improvements have been developed at pilot scale in recent years which lead to higher yields (up to 80%) due to reduced side reactions and improved product recovery [12,13]. 

Dry expls contg lignosulfonate and AN, as for example, permissible blasting expl consisting of 90.2% prilled AN, 3% of 50% Ca lignosulfonate soln, and 6.8% sunflower seed husks. Its deton rate was 2000m/sec in a 1-inch steel pipe)... 

Birehwood and wheat bran Tobacco stalk, cotton stalk. Sunflower stalk and wheat straw Barley husks... 

The first stage of the biorefinery is often the separation of the main components of the plant. Most of the time, this stage has been performed on the field by the harvesting unit. In the case of rapeseed, the seeds are separated from the rest of the plant (stem, leaves), whereas in the case of other plants such as sunflower, the seeds have to go through an additional stage to separate the husk from the seed kernel that is then used for oil recovery. The husk is then treated as a lignocellulosic fraction. 

Two main processes are used for removing oil from oilseeds. One uses pressure to force out the oil, and the other uses an organic solvent, usually hexane, to dissolve the oil from the seed. Some seeds, such as groundnut, cotton seed and sunflower, have a thick coat or husk, rich in fibre and of low digestibility, which lowers the nutritive value of the material. It may be completely or partially removed by cracking and riddling, a process known as decortication. The effect of decortication of cotton seed upon the nutritive value of the cake derived from it is shown in Table 23.2. 

Biosorption is an efficient and economical method that can be used for the removal of heavy metals from wastewaters. The majority of recent biosorption smdies were conducted with low-cost agricultural waste such as sunflower stalks [14,15], orange peel [16], coconut cash [17,18], ohve stone [19, 20], steel-making slag [21], tree fern [22], olive tree pruning [23], rice husk [24], peanut hull pellets [25], and grape stalk [26,27], and all of them have been identified as potential biosorbents for heavy metal removal. 

B. L. Perez-Vich, L. Velasco, J. M. Femandez-Martinez. Determination of seed oil content and fatty acid composition in sunflower through the analysis of intact seeds, husked seeds, meal and oil by near-infrared reflectance spectroscopy. J Am Oil Chem Soc 75 547-555, 1998. 

If the association of proteins and biogenic oxides finds its main inspirational source from diatoms, the coexistence of polysaccharides and silica is most often observed in plants. In feet, fi om rice husk to sunflower leafe, a myriad of plants display variable contents of silica [37,197,198]. The occurrence of silica in plants is limited to ill-shaped ovoids, rods, or serrated leaf edges [197], some far less spectacular features than those found in diatom frustules or sea sponges. This might explain the late start in the development of materials based on the combination of polysaccharides and biogenic oxides compared with the protein-based counterparts. 

Herbaceous and agricultural biomass Grasses, flowers, straws, green, and residues Alfalfa, arundo, bamboo, bana, brassica, cane, cynara, barley, bean, flax, com, mint, oat, rape, rice, rye, sesame, sunflower, wheat, fruits, shells, husks, huUs, pits, pips, grains, seeds, coir, stalks, cobs, kernels, bagasse, food, fodder, pulps, cakes, etc. 

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