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From Analog to Digital -- Successful Implementation of IoT Solutions in the Petrochemical Industry

Noel Portillo

TL;DR

This paper evaluates a contractor-led modernization of a legacy cyclone-based system in the petrochemical sector using low-cost IoT hardware. By replacing relay-based control with an Arduino Opta PLC, MAX6675 temperature sensors, and capacitive level sensors, it enables remote monitoring and automated gate control, demonstrated through a combined Screener/Cyclone case study. The work outlines practical engineering steps, including ladder logic integration and protective measures against sensor interference, and reports favorable operator feedback and initial refinery deployment. The findings suggest a scalable pathway for digitizing aging refinery equipment, with potential extensions to vacuum synchronization and added gas sensors to further improve safety and efficiency.

Abstract

This document describes the development and implementation of a technological solution based on IoT devices to modernize a machine known as the Cyclone. This equipment is used by a contractor collaborating with petrochemical companies in the state of Texas, performing specialized work in mechanics, engineering, catalytic material replacement, and rescue operations in refinery complexes. The Cyclone machine, with outdated relay logic technology, poses challenges in terms of operational efficiency, critical condition monitoring, and safety. The project was carried out with the collaboration of specialists in equipment handling, focusing on demonstrating the feasibility of integrating advanced Industry 4.0 technologies into legacy industrial equipment. The methodology included the incorporation of IoT sensors for real-time monitoring, an automated control system, and the digitization of key processes. Preliminary results indicate improvements in the precision of operational control and the ability for remote supervision, highlighting the potential for modernization in critical industrial applications. This work not only validates the use of IoT devices in obsolete equipment but also sets a precedent for the transition towards more sustainable and efficient technologies in the petrochemical sector.

From Analog to Digital -- Successful Implementation of IoT Solutions in the Petrochemical Industry

TL;DR

This paper evaluates a contractor-led modernization of a legacy cyclone-based system in the petrochemical sector using low-cost IoT hardware. By replacing relay-based control with an Arduino Opta PLC, MAX6675 temperature sensors, and capacitive level sensors, it enables remote monitoring and automated gate control, demonstrated through a combined Screener/Cyclone case study. The work outlines practical engineering steps, including ladder logic integration and protective measures against sensor interference, and reports favorable operator feedback and initial refinery deployment. The findings suggest a scalable pathway for digitizing aging refinery equipment, with potential extensions to vacuum synchronization and added gas sensors to further improve safety and efficiency.

Abstract

This document describes the development and implementation of a technological solution based on IoT devices to modernize a machine known as the Cyclone. This equipment is used by a contractor collaborating with petrochemical companies in the state of Texas, performing specialized work in mechanics, engineering, catalytic material replacement, and rescue operations in refinery complexes. The Cyclone machine, with outdated relay logic technology, poses challenges in terms of operational efficiency, critical condition monitoring, and safety. The project was carried out with the collaboration of specialists in equipment handling, focusing on demonstrating the feasibility of integrating advanced Industry 4.0 technologies into legacy industrial equipment. The methodology included the incorporation of IoT sensors for real-time monitoring, an automated control system, and the digitization of key processes. Preliminary results indicate improvements in the precision of operational control and the ability for remote supervision, highlighting the potential for modernization in critical industrial applications. This work not only validates the use of IoT devices in obsolete equipment but also sets a precedent for the transition towards more sustainable and efficient technologies in the petrochemical sector.

Paper Structure

This paper contains 15 sections, 2 equations, 15 figures.

Table of Contents

  1. Abstract
  2. Introduction
  3. The Screener Machine
  4. The Cyclone Machine
  5. Overview of the Electrical Control Circuitry
  6. Problem Statement
  7. Objectives
  8. Hardware Components of the Proposed Solution
  9. Logical Control Design
  10. Arduino Sketch for MAX6675 Sensors
  11. Ladder Solution Implementation
  12. Ladder Logic Diagram
  13. Analysis of Results
  14. Conclusions
  15. Appendix

Figures (15)

  • Figure 1: Catalytic Material b3
  • Figure 2: Operational Process of the Cyclone
  • Figure 3: Control Panel of the Cyclone Machine with Key Components Highlighted
  • Figure 4: Protective metal plate for horizontal sensor installationb17
  • Figure 5: Assembly of the automatic control prototype designed for the automation and monitoring of the cyclone.
  • ...and 10 more figures