Algae can be used to produce ' green diesel ' (also known as renewable diesel, hydrotreating vegetable oil  or hydrogen-derived renewable diesel)  through a hydrotreating refinery process that breaks molecules down into shorter hydrocarbon chains used in diesel engines.   It has the same chemical properties as petroleum-based diesel  meaning that it does not require new engines, pipelines or infrastructure to distribute and use. It has yet to be produced at a cost that is competitive with petroleum .  While hydrotreating is currently the most common pathway to produce fuel-like hydrocarbons via decarboxylation/decarbonylation, there is an alternative process offering a number of important advantages over hydrotreating. In this regard, the work of Crocker et al.  and Lercher et al.  is particularly noteworthy. For oil refining, research is underway for catalytic conversion of renewable fuels by decarboxylation .  As the oxygen is present in crude oil at rather low levels, of the order of %, deoxygenation in petroleum refining is not of much concern, and no catalysts are specifically formulated for oxygenates hydrotreating. Hence, one of the critical technical challenges to make the hydrodeoxygenation of algae oil process economically feasible is related to the research and development of effective catalysts.  
Composite material is a material made from two or more constituent materials with significantly different physical or chemical properties that, when combined, produce a material with characteristics different from the individual components Polymer composites are high-performance composites, framed using 3Dfabric reinforcement and shape memory polymer resin as the matrix. In consideration of shape memory polymer resin used as the matrix, these composites gain the potential to be easily engineered into variety of configurations when they are heated above their activation temperatures and will exhibit high strength and stiffness at lower temperatures. They can also be reheated and reshaped again without losing their properties. Polymer technology has an effective impact in developing advanced polymeric materials which are useful in day to day life. Composite material , the wonder materials are becoming an essential part of today’s materials due to the advantages such as low weight, corrosion resistance, high fatigue strength, and faster assembly. They are broadly used as materials in making aircraft structures, electronic packaging to biomedical equipment, and space vehicle to home building.