# Simulation of liquid hydrocarbon production via n-tetradecane reforming: A renewable energy approach

## TL;DR

This paper explores using n-tetradecane to produce renewable liquid hydrocarbons through a two-stage process involving reforming and Fischer-Tropsch synthesis.

## Contribution

The study identifies optimal parameters for syngas production and hydrocarbon synthesis from n-tetradecane, highlighting its viability as a renewable energy source.

## Key findings

- Optimal reforming conditions include 800°C, 0.356 O2/C, 6 L/D, and 2.3 S/C for high syngas production.
- C5+ hydrocarbon yield increases with temperature up to 350°C, but the process is optimized at 290°C for catalyst longevity.
- n-Tetradecane's H2/CO ratio of 2.3 leads to high C5+ production, and the process is economically viable at moderate scales.

## Abstract

Considering the current worldwide search for renewable energy, n-tetradecane has attracted attention as a candidate for a hydrogen energy carrier and more sighted for light hydrocarbon within the gasoline range of C5-C12. This study investigates the production of liquid hydrocarbons by n-tetradecane in two stages process: syngas production through reforming of n-tetradecane and Fischer-Tropsch synthesis. The temperature, oxygen-to-carbon (O2/C) ratio, reactor length-to-diameter (L/D) ratio, and steam-to-carbon (S/C) ratio are examined in this study as the parameters that influence the reforming of n-tetradecane and superior result of 800ºC, 0.356 O2/C, 6 L/D and 2.3 S/C were established to give high conversion and efficient production of syngas. While the yield of the C5+ hydrocarbon in the Fischer-Tropsch (FT) reactor increased with rising temperature up to 350°C, but the permissible temperature for process is 290°C, based on these, the temperature was set to optimize productivity and longevity of the catalyst. When using n-tetradecane as feed stock, high C5+ production was resulted because of its suited H2/CO ratio of 2.3. The techno-economic assessment highlights the process’s viability at moderate scales, with economic performance strongly influenced by product price and energy integration.