In recent times, the escalation of greenhouse gases, air pollution and depletion of the ozone layer has enforced the researchers to renovate the regular use of fossil fuels into alternate methods which are non-toxic, eco-friendly, and cost-effective. Biomass is one of the traditions to swap fossil fuels. Biomass can be transmogrified into beneficial and eco-friendly forms of energy under various conversion processes. The obtained energy can be used for heating water, industrial heating process, and generating electricity. Pyrolysis is a method to alter biomass into useful products, as the final yields of this process include bio-oil, char, methane (CH4), hydrogen (H2), carbon monoxide (CO) and carbon dioxide (CO2). It is well known for its high efficiency and environmental performance. In this method even the agricultural residues, waste woods, solid municipal waste, plant wastes can be utilized. This review comprehends the various concepts on products of biomass pyrolysis, mechanisms, and several pre-treatment processes used for efficient pyrolysis of biomass have been analysed. The impact of various fundamental constraints such as temperature, heating rate, particle size was studied and their influence on yield and composition were studied.

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The ingestion of fossil fuels such as diesel has augmented immeasurably with transformation and increase in the use of automobiles [1]. Biodiesel derived from renewable resources such as non-edible vegetable oil is used as a substitute for the conventional diesel fuel. Amplified demand for energy, abridged emission standards and diminution of resources which cannot be renewed claimed in discovering of alternative and non-conventional fuels for IC engines [2]. In the subsequent paper, the performance, radiation and characteristics of emission in CI engines powered with turpentine oil. The DEE inclusion has tolerable chattels on the performance characteristics of the fuel, augmented brake thermal efficiency is conquered by the intensification in the extent of DEE and thus consuming the divergent effect on the specific fuel ingesting. The experiment was supported in a 4-stroke, diesel engine of single cylinder by fluctuating the load. Adding Turpentine Oil in diesel raises the aggregate of density, viscosity and level of oxygen content present in it, but diminishes its calorific value [2]. Liberation arches depict the same physiognomies as tallying of Turpentine oil which reduces the amount of CO, CO2, NOx and O2 upsurge to quantity of these HC.

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