Title : Role of sulphuric acid modification to coconut shell activated carbon in catalytic cracking of waste ?cooking oil
Biofuel production from catalytic cracking of waste cooking oil is an attractive topic because it incorporates waste management and introduction of a new clean source of energy. Catalytic cracking is a promising technology for biofuel production because it is a simpler and easy-to-manage process compared with fermentation, capable to produce a wide range of products, and cost-effective. The catalyst type and/or surface modifications have a substantial impact on the reaction and consequently the distribution of product components. Activated carbon (AC) considers a viable catalyst in the catalytic cracking of vegetable oils due to its high thermal stability, abundance, ease of surface modification, and high surface area. Acid modification with sulphuric acid could be regarded as a low-cost and simple pre-treatment step for activated carbon to enhance the chemical and physical properties of the coconut-shell activated carbon catalyst. This work shows the improvement in hydrocarbon yield and its distribution over different percentage of acid loading (5%, 10%, 20%, and 30%) on the activated carbon surface. Besides, the characterization of the modified catalysts (BET-BJH, SEM, XRD, FTIR, TPD-NH3, and TGA) are also discussed. The performance of the prepared catalysts is evaluated in terms of hydrocarbon fractions in the product stream, total liquid, coke, and gas yield.
- How the surface acidity of catalyst influences the performance of the WCO cracking reaction.
- How a simple/low-cost modification action like acid modification can enhance the catalyst cracking performance.
- The compositions of the organic liquid products produce from the catalytic cracking of waste cooking oil.
- Characterization results of prepared catalysts.