Waste-Powered Hydrogen Production System for Oil Extraction Sites
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Solution Overview
Problem
The oil and gas sector faces significant challenges in reducing greenhouse gas emissions from gas flaring and managing wastewater, with existing solutions lacking infrastructure for remote and dispersed sites, leading to continued flaring and high wastewater treatment costs.
Innovation Solution
A waste-powered hydrogen production system that utilizes associated gas from oil extraction to generate electricity and an electrolyzer to produce hydrogen from treated wastewater, reducing flaring and wastewater disposal costs while producing low-carbon hydrogen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If associated gas is flared to reduce emissions, then greenhouse gas emissions are reduced, but energy is lost and no valuable product is produced
Solution Approach 1:
The system converts the harmful associated gas that would otherwise be flared into a beneficial energy source by feeding it to the generator set for electricity production. This transforms the harmful flaring process into a useful power generation process, simultaneously reducing emissions and recovering energy.
Solution Approach 2:
The oil extraction system serves itself by using its own waste associated gas to power the generator set, which in turn powers the electrolyzer for hydrogen production. This self-service approach eliminates the need for external energy sources and creates a closed-loop system.
2Object-generated harmful factors
If wastewater is treated and discarded to meet environmental standards, then environmental compliance is achieved, but high treatment costs are incurred
Solution Approach 1:
The system converts the harmful wastewater that requires expensive treatment into a valuable resource by using it as feedstock for hydrogen production in the electrolyzer. This transforms a cost center into a value-generating process.
Solution Approach 2:
The system changes the destination and purpose of the wastewater stream. Instead of treating it for discharge, the wastewater is redirected to the electrolyzer where its chemical composition becomes the basis for hydrogen production, fundamentally changing its role from waste to resource.
3Object-generated harmful factors
If infrastructure is installed at remote and dispersed oil extraction sites to capture and treat gas and wastewater, then emissions are reduced and wastewater is managed, but system complexity and installation costs increase
Solution Approach 1:
The system merges multiple functions into a single integrated unit: the generator set and electrolyzer are combined in one system, allowing simultaneous electricity generation and hydrogen production from the same waste streams. This reduces the number of separate installations needed at remote sites.
Solution Approach 2:
The integrated system performs multiple functions using the same inputs: it simultaneously generates electricity, produces hydrogen, reduces emissions, and manages wastewater. This multi-functionality reduces the overall system complexity compared to having separate systems for each function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively reduces CO2 emissions, decreases wastewater treatment costs, and produces clean hydrogen, meeting the low carbon hydrogen standard by converting waste products into a valuable commodity onsite, thereby addressing the environmental and economic challenges of gas flaring and wastewater management.
Implementation Method 1
a generator set structured to receive associated gas from an oil extraction system and to produce electrical power by combustion of the gas
Implementation Method 2
an electrolyzer structured to receive wastewater from the oil extraction system, receive the electrical power produced by the generator set, and produce hydrogen therefrom
Data Source
AI summary
A waste powered hydrogen production system includes a generator set structured to receive associated gas from an oil extraction system and to produce electrical power by combustion of the gas. The waste powered hydrogen production system further includes an electrolyzer structured to receive wastewater from the oil extraction system, to receive the electrical power produced by the generator set, and produce hydrogen therefrom.