Utilization of Solid Wastes to Satisfy Energy Requirements of LNG Process

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

All across the world, governments struggle to diversify their energy supply with an appropriate and sustainable replacement for fossil fuels while reducing the environmental effects of discharged waste. Due to the potential for increased fuel production and downstream electricity while reducing greenhouse gas emissions, the conversion of industrial wastes has drawn a lot of interest. Solid waste holds the highest potential as a biomass source due to the rapid increase in industrial expansion. The most significant solid waste is oily sludge, a combination of hydrocarbon, sand, clay, and certain metals that is pasty, dense, and semi-solid. However, the solid waste generation specifically from industrial operations possess environmental concerns related to waste management being addressed insufficiently. This study presents an overview on industrial solid waste (ISW) generated from different plant's operation that has the potential to be used as a source of bioenergy in the Liquefied Natural Gas (LNG) process to satisfy energy requirements. Moreover, the study presents additional solids waste that can be potentially utilized to fulfil the power demand of the LNG process. Aspen software is utilized to simulate the gasification of ISW as a biomass feedstock in the power generation flowsheet. Waste-to- energy gasification technology, which recovers energy from discarded and difficult-to- treat ISW and generates electricity and/or steam for heating, is recognized as a renewable energy source and is becoming more and more significant in waste management. Oily sludge is significant solid waste in the LNG process that is produced from multiple units such as; pig receiver, slug catcher, condensate separation, wastewater treatment, tank cleaning and chemical regeneration processes. The power analysis of a 3.12 million metric tons per annum LNG production facility indicates that the gasification of industrial solid waste (ISW) can fulfil only 0.43% of the energy demands within the LNG production process. Nevertheless, this energy integration results in an 18% reduction in utility emissions, thereby decreasing the reliance on plant utilities and associated emissions. Additionally, it addresses the disposal of rejected and challenging-to-treat industrial wastes.

Original languageEnglish
Title of host publicationComputer Aided Chemical Engineering
PublisherElsevier B.V.
Pages2455-2460
Number of pages6
DOIs
Publication statusPublished - Jan 2024

Publication series

NameComputer Aided Chemical Engineering
Volume53
ISSN (Print)1570-7946

Keywords

  • Industrial Solid Wastes
  • LNG
  • Simulation
  • Sustainability

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