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Present study concerns with the production of H2 rich product gas by thermochemical energy conversion having biomass gasification as a route for the four biomasses i.e., Kasai Saw Dust, Lemon Grass, Wheat Straw and Pigeon Pea Seed Coat. The biomasses are from the family of woody biomass, grasses, agricultural waste and food process industry wastes. Waste engine oil as an additive is used, which also acts as a binder. Air gasification and Air-steam gasification is applied and compared for product gas composition, hydrogen yield and other performance parameters like lower heating value, energy yield. Product gas constituents, hydrogen production is examined with different steam to biomass ratio (S/B ratio) and equivalence ratio. The equivalence ratio varies from 0.20-0.40 and the steam to biomass ratio varies between 0-4. The waster engine oil is mixed with the biomasses with different percentage of 5 and 10 wt%. For enhancement of feedstock quality palletization process is applied. The H2 yield is greatly affected by the equivalence ratio. Results show maximum H2 production and higher calorific value of product gas at an air to fuel of 0.26 for all the biomass pallets. Also, the S/B ratio observed as important aspect for hydrogen enrichment. Hydrogen yield is maximum at 2.4 steam to biomass ratio. This study considers the rarely studied Indian biomasses with waste engine oil as an additive for hydrogen-rich product gas production and will be beneficial for small scale hydrogen-rich syngas production considering the central Indian region originated biomasses. Statement of Novelty (SON):Research work belongs to eco-friendly use of rarely studied Indian biomass pallets. Equivalence air to fuel ratio (E/R ratio), steam to biomass ratio (S/B ratio) and waste engine oil as additive have been considered to upgrade H2 content and Calorific Value (CV) of the product gas. Novelty of work include use of waste engine oil as additive to make biomass pallets.

The Energy usufruct and outturn is amplifying day by day due to quick industrialization and urbanization these days. A major section of the energy is originated from Thermal Power Plants. Present scenario of country shows 85% of country's total power origination is from thermal power plants, of which coal-based generation is around 90%.During the deflagration of crushed coal at thermal power station the product formed are bottom ash, fly ash, vapors and pond ash. The ash collected from ESP's and the bottom ash with water is disposed in a slurry form in large ponds and dykes which produces Pond ash. In present study the Pond ash has been used as a partial replacement of fine aggregate by weight in ratio of 0%(B0), 5%(B1), 10%(B2), 15%(B3), 20%(B4), 25%(B5). The properties of Pond ash were compared to Fine aggregate. The standard concrete of grade M35 and pond ash mixed concrete of same mix design were compared to understand the mechanical properties of concrete such as compressive strength and workability. A chemical admixture CONPLAST-SP430 is also used for better fulfillment of workability of concrete due to vast dosage of pond ash. The concrete specimens were tested at 3, 7, 14, 28 days of curing period. The Experiments study indicates that Pond ash as a partial replacement of fine aggregate shows beneficiary effects over mechanical properties of concrete. The test results indicate that optimum Pond ash replacement is 15%, where there is a relative increment of compressive strength was obtained up to 13.65%. The bulk density and specific gravity of Pond ash is lower to Fine aggregate causes decrement in unit density of concrete. The main aim of this study is to use hazardous waste by product into building industry to achieve economical and eco-friendly concrete.