CHEG 360: Hydrogen Technologies Lecture 22

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following processes is NOT associated with clean energy?

Renewables

Fossil fuel extraction (correct)

Behavioral changes

CCUS

What is the role of digitalization in the context of energy systems?

It solely improves energy efficiency.

It reduces international collaboration.

It enhances tracking of clean energy processes. (correct)

It replaces renewable energy sources.

Which energy source is NOT part of the clean energy spectrum presented?

Hydrogen

Coal (correct)

Electrification

Bioenergy

Which of the following elements contributes to clean energy innovation?

International collaboration Signup and view all the answers

How does hydrogen feature in the new energy scenario?

It is considered as power-to-power and power-to-X solutions. Signup and view all the answers

What was the CO2 concentration reported in October 2023?

422.38 ppm Signup and view all the answers

What was the change in CO2 concentration from July 2023 to July 2024?

Decrease of 3.72 ppm Signup and view all the answers

Which CO2 concentration was the highest recorded in the data provided?

425.55 ppm Signup and view all the answers

In which year did the CO2 concentration first reach levels mentioned in the report?

2007 Signup and view all the answers

When was the CO2 concentration data last updated for August 2024?

July 2024 Signup and view all the answers

What is the primary method used for producing grey hydrogen?

Steam methane reforming Signup and view all the answers

What distinguishes blue hydrogen from grey hydrogen?

It involves carbon dioxide capture during production. Signup and view all the answers

In hydrogen transportation, what does H₂ blending refer to?

Integrating hydrogen into the existing natural gas pipeline. Signup and view all the answers

Which of the following is a use of hydrogen in energy applications?

Chemical feedstock for refineries Signup and view all the answers

What is the significance of CCPP in the hydrogen value chain?

It refers to a carbon capture and storage technology. Signup and view all the answers

Which aspect of clean energy is currently considered 'not on track'?

Energy efficiency Signup and view all the answers

What is indicated as being 'on track' in the context of clean energy?

Electrification Signup and view all the answers

Which clean energy process requires more efforts according to the current tracking?

Behavioral changes Signup and view all the answers

Which of the following is a key technological avenue emphasized for the energy transition?

Hydrogen Signup and view all the answers

What is a primary focus of the IRENA 2021 report?

Renewable electricity generation Signup and view all the answers

Which process is mentioned in the context of being part of the solution for the energy transition?

Bioenergy Signup and view all the answers

What type of collaboration is deemed important for energy innovation?

International collaboration Signup and view all the answers

Which concept is essential in the context of hydrogen in the new energy scenario?

Power-to-X Signup and view all the answers

What are the primary focuses of hydrogen utilization as mentioned in the course content?

Refining, heat, power, and applications in hard-to-abate sectors Signup and view all the answers

What economic impact of climate change was reported for the year 2018?

US$160 billion Signup and view all the answers

Which of the following describes 'power-to-X' in the context of hydrogen technologies?

Transforming renewable energy into hydrogen and subsequently into other energy vectors Signup and view all the answers

How is hydrogen proposed to be stored according to hydrogen storage options?

Underground storage, chemical, and physical storage options Signup and view all the answers

What is the projected saving by switching from fossil fuels to renewable energy by 2050?

US$12 trillion Signup and view all the answers

Which application of hydrogen is considered a classical application?

Hydrogen use in refining and fertilizers Signup and view all the answers

What are the implications of climate change as described in the course?

Severe economic costs and environmental degradation Signup and view all the answers

What role does bio-hydrogen play in hydrogen production?

It is generated from organic materials Signup and view all the answers

What does the Global Warming Potential (GWP) of a gas express?

The potential to trap heat compared to CO2. Signup and view all the answers

Which greenhouse gas has the highest GWP over a 100-year period according to the data?

Sulfur Hexafluoride (SF6) Signup and view all the answers

In the UAE, which sector accounts for over 20% of CO2 emissions?

Transport Signup and view all the answers

What is a primary goal of the UAE Energy Strategy 2050?

To secure sustainable and affordable energy. Signup and view all the answers

What is a potential consequence of the energy transition if not managed properly?

Catastrophic situations could arise. Signup and view all the answers

Which gas has a GWP ranging from 265 to 298 over 100 years?

Nitrous Oxide (N2O) Signup and view all the answers

What is a significant driver for global warming?

Increased greenhouse gas emissions. Signup and view all the answers

What role do different scenarios play in the context of greenhouse gas emissions?

They lead to varying outcomes based on actions taken. Signup and view all the answers

Study Notes

Introduction to Hydrogen Technologies and Applications (CHEG 360) - Lecture 22

Lecture 22 focused on hydrogen in the new energy scenario, specifically large-scale energy storage, including power-to-power and power-to-X systems
The lecture's speaker was Dr. Lourdes F. Vega, a Professor in Chemical and Petroleum Engineering, and Director of the Research and Innovation Center on CO2 and Hydrogen (RICH Center) at Khalifa University
Date of lecture: November 19, 2024

Course Content

The course covers various topics related to hydrogen technologies and applications
Basic hydrogen properties and safety
Hydrogen generation from hydrocarbons, solar methods, bio-hydrogen, and nuclear power
Hydrogen transportation and storage options including underground storage, chemical, and physical storage methods
Hydrogen utilization in classical applications like refining, fertilizer production, and chemical industries
Combustion (ammonia as a carbon-free fuel), Heat, and power applications
Hydrogen utilization in hard-to-abate sectors
Fuel cell concepts and applications in transportation
Hydrogen in the new energy scenario: large-scale energy storage (power-to-power) and power-to-X
The lecture included discussion on the impact of climate change and the economic consequences associated with climate change in 2018 and as a whole by 2050
The current CO2 concentration and the current situation and trends, particularly at the Mauna Loa Observatory
The different sectors contributing to CO2 emissions were detailed, specifically: buildings, industry, and transportation
The speaker presented a detailed study discussing greenhouse gases (GHG) and CO2 equivalence
Different approaches to quantify the impact of GHG on the atmosphere
CO2 emissions in the UAE were visually presented, broken down by energy source and sector
A summary of energy sources: non-renewable sources such as petroleum, natural gas, coal, and nuclear energy were presented, alongside renewable energy sources like biomass, hydro power, wind, solar, and geothermal energy
The supply of electricity is irregular, leading to a need for energy storage on various scales
Different energy storage strategies including reversible hydroelectric plants, thermal storage, batteries, and fuel cells were discussed
Various hydrogen storage technologies were presented with their power and capacity ranges. This included a detailed description of the different storage technologies and their applications, categorized into mechanical and electrical storage and electrochemical and chemical storage
Strategies to track clean energy processes including renewability, digitalization, electrification, bioenergy, international collaboration, and CCUS (Carbon Capture Utilization and Storage)
Hydrogen is not a primary energy source but an energy vector
Technologies for hydrogen production and challenges to producing it in a cost-effective manner were examined
Technological pathways for the energy transition showing hydrogen as part of the solution were visually represented by different proportions of various technologies to produce hydrogen in various methods
Examples were given to show how renewable electricity can now be generated, including data from 2018 to illustrate the trend in various renewable energy plants, like Hydropower, Wind, Bioenergy, and Solar
The evolution of renewable and non-renewable energy production was depicted through graphical representations of energy output over each week
The presentation included discussion on where CO2 can be captured
Various strategies for CO2 capture were presented with diagrams including post-combustion and direct air capture of CO2
CCUS (carbon capture, utilization, and storage) concept and implementation strategies
Details on various technologies for hydrogen production, in particular the difference between grey, blue and green hydrogen
Balance for producing hydrogen (1.1 tonH2) for its use in different settings including different methods and approaches to produce hydrogen and the energy needed
Hydrogen Utilization methods, detailed breakdown showing combined heat and power (CHP) utilization methods
Hard-to-abate industries and the difficulties in decarbonizing them
Basics and applications of fuel cells
Hydrogen utilization in power generation and transportation
Discussion on storing and transporting hydrogen, and various storage options and the future technologies
Details on Power-to-X and Power-to-Power
The current and expected hydrogen market for each method of hydrogen production (grey, blue, green, and electrolysis-based hydrogen)
Various technological approaches to decarbonizing hard-to-abate industries that were visually displayed were addressed
Details on the maturity of hydrogen solutions were shown, including a chart showing the maturity levels and application areas
Details on the economic feasibility of ammonia as an alternative for hydrogen
A presentation on how hydrogen is utilized for CHP were visualized along with details
The lecture concluded with a message promoting the importance of continued engagement and effort in this area

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Lecture 22 of CHEG 360 delves into hydrogen's role in new energy systems, emphasizing large-scale energy storage methods like power-to-power and power-to-X. Led by Dr. Lourdes F. Vega, this session explores various aspects of hydrogen generation, transportation, and applications in industry.