Kinetic Modelling of Non – Catalytic Pyrolysis of Waste Jute in a Fixed Bed Pyrolyzer

Abstract

Waste jute has been investigated as an alternative feedstock for the generation of liquid and gaseous fuel through noncatalytic pyrolysis in a fixed bed reactor. Kinetic parameters for the pyrolysis of jute wastes have been determined in the temperature range of 400 -900 o C. A fixed bed reactor model has been developed using the kinetic parameters determined during the present study and the literature data on secondary tar cracking reaction.

Catalytic pyrolysis of lignocellulosic bio-packaging (jute) waste – kinetics using lumped and DAE (distributed activation energy) models and pyro-oil characterization

“…The particle size of the feed material is 128 mm  49 mm  0.6 mm. The results of proximate 4 and elemental analyses of the feed material are shown along with higher heating values and bulk density in the Table 1.…”

“…The isothermal experiments were conducted in a 50 mm diameter and 164 mm long semi-batch pyrolyzer, as described in previous research articles. 4,10 For both catalytic and noncatalytic pyrolysis, the reactor was run isothermally under inert atmosphere maintained by N 2 purging in the temperature range of 673-1173 K. Each run was started with 100 g waste jute and the reactor was operated for 1 h. The volatiles coming out of the pyrolyzer was passed through a series of condensation units, as described in the previous articles. 4,10 The total weight of solid residue and char in the pyrolyzer was recorded continuously using the electronic balance attached with the pyrolyzer.…”

“…Complex reactions in series, parallel or combination of both, occur during pyrolysis of lignocellulosic feed stocks. 4,27 The reaction pathway of non-catalytic and catalytic pyrolysis may be represented as follows:…”

“…In the context of both energy security and climate change mitigation, biomass is of major interest as a renewable energy source. In recent times, agricultural residues, municipal solid wastes, 1,2 vegetable wastes like Pungam oil cakes, 3 jute waste, [4][5][6] soybean, 7 rapeseed, 8 sunower oil cake, 9 cotton based textile wastes 10 and energy crops have attracted great attention as alternative energy sources. In India, jute fabric is used as an ecofriendly lignocellulosic bio-packaging material particularly for food-grains and sugar 11,12 and a large portion faces disposal problems.…”