Rhamnolipid: a Bio-based, Ecologically Friendly, Corrosion Inhibitor and SRB Biocide for Crude Pipelines

Overview

Main Objective

The main objective is to determine whether rhamnolipids can be used as a corrosion inhibitor and sulfate-reducing bacteria (SRB) biocide for crude oil pipelines.

Public Abstract

This project aims to explore the potential of rhamnolipids, a bio-based surfactant, as a sustainable solution for corrosion inhibition and sulfate-reducing bacteria (SRB) mitigation in crude oil pipelines. Rhamnolipids, known for their biodegradable and eco-friendly nature, have shown promise in preliminary studies as effective corrosion inhibitors and SRB biocides.

Anticipated Results: Identification of specific rhamnolipid concentrations, structures, and application methods that can effectively protect pipelines from corrosion and microbial damage, including the following: determination of the critical concentration of rhamnolipids required to effectively inhibit corrosion and mitigate SRB activity in a simulated oilfield environment; assessment of the comparative effectiveness of mono-rhamnolipids, di-rhamnolipids, or a combination of both in terms of corrosion inhibition and SRB biocidal activity, investigation of the influence of crude oil on rhamnolipid partitioning between the organic and aqueous phases, and its subsequent impact on corrosion inhibition performance; and validation of the findings in actual crude oil samples, considering factors such as water content, sulfur content, acid number, and API gravity.

Potential Impact on Safety: By effectively inhibiting corrosion and mitigating SRB activity, rhamnolipid-based solutions can reduce the risk of pipeline failures; minimize environmental impact through adoption of a bio-based, eco-friendly solution; improve operational efficiency by reducing maintenance costs and downtime associated with corrosion-related issues; and therefore contribute to a safer and more sustainable pipeline infrastructure.

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