Renewable Natural Gas: Same Ol' Climate Polluting Methane, Cleaner
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U.S. Energy in the 21St Century: a Primer
U.S. Energy in the 21st Century: A Primer March 16, 2021 Congressional Research Service https://crsreports.congress.gov R46723 SUMMARY R46723 U.S. Energy in the 21st Century: A Primer March 16, 2021 Since the start of the 21st century, the U.S. energy system has changed tremendously. Technological advances in energy production have driven changes in energy consumption, and Melissa N. Diaz, the United States has moved from being a net importer of most forms of energy to a declining Coordinator importer—and a net exporter in 2019. The United States remains the second largest producer and Analyst in Energy Policy consumer of energy in the world, behind China. Overall energy consumption in the United States has held relatively steady since 2000, while the mix of energy sources has changed. Between 2000 and 2019, consumption of natural gas and renewable energy increased, while oil and nuclear power were relatively flat and coal decreased. In the same period, production of oil, natural gas, and renewables increased, while nuclear power was relatively flat and coal decreased. Overall energy production increased by 42% over the same period. Increases in the production of oil and natural gas are due in part to technological improvements in hydraulic fracturing and horizontal drilling that have facilitated access to resources in unconventional formations (e.g., shale). U.S. oil production (including natural gas liquids and crude oil) and natural gas production hit record highs in 2019. The United States is the largest producer of natural gas, a net exporter, and the largest consumer. Oil, natural gas, and other liquid fuels depend on a network of over three million miles of pipeline infrastructure. -
Combustion and Heat Release Characteristics of Biogas Under Hydrogen- and Oxygen-Enriched Condition
energies Article Combustion and Heat Release Characteristics of Biogas under Hydrogen- and Oxygen-Enriched Condition Jun Li 1, Hongyu Huang 2,*, Huhetaoli 2, Yugo Osaka 3, Yu Bai 2, Noriyuki Kobayashi 1,* and Yong Chen 2 1 Department of Chemical Engineering, Nagoya University, Nagoya, Aichi 464-8603, Japan; [email protected] 2 Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; [email protected] (H.); [email protected] (Y.B.); [email protected] (Y.C.) 3 Faculty of Mechanical Engineering, Kanazawa University, Kakuma, Kanazawa, Ishikawa 920-1192, Japan; [email protected] * Correspondence: [email protected] (H.H.); [email protected] (N.K.); Tel.: +86-20-870-48394 (H.H.); +81-52-789-5428 (N.K.) Received: 10 May 2017; Accepted: 20 July 2017; Published: 13 August 2017 Abstract: Combustion and heat release characteristics of biogas non-premixed flames under various hydrogen-enriched and oxygen-enriched conditions were investigated through chemical kinetics simulation using detailed chemical mechanisms. The heat release rates, chemical reaction rates, and molar fraction of all species of biogas at various methane contents (35.3–58.7%, mass fraction), hydrogen addition ratios (10–50%), and oxygen enrichment levels (21–35%) were calculated considering the GRI 3.0 mechanism and P1 radiation model. Results showed that the net reaction rate of biogas increases with increasing hydrogen addition ratio and oxygen levels, leading to a higher net heat release rate of biogas flame. Meanwhile, flame length was shortened with the increase in hydrogen addition ratio and oxygen levels. -
Biomass Basics: the Facts About Bioenergy 1 We Rely on Energy Every Day
Biomass Basics: The Facts About Bioenergy 1 We Rely on Energy Every Day Energy is essential in our daily lives. We use it to fuel our cars, grow our food, heat our homes, and run our businesses. Most of our energy comes from burning fossil fuels like petroleum, coal, and natural gas. These fuels provide the energy that we need today, but there are several reasons why we are developing sustainable alternatives. 2 We are running out of fossil fuels Fossil fuels take millions of years to form within the Earth. Once we use up our reserves of fossil fuels, we will be out in the cold - literally - unless we find other fuel sources. Bioenergy, or energy derived from biomass, is a sustainable alternative to fossil fuels because it can be produced from renewable sources, such as plants and waste, that can be continuously replenished. Fossil fuels, such as petroleum, need to be imported from other countries Some fossil fuels are found in the United States but not enough to meet all of our energy needs. In 2014, 27% of the petroleum consumed in the United States was imported from other countries, leaving the nation’s supply of oil vulnerable to global trends. When it is hard to buy enough oil, the price can increase significantly and reduce our supply of gasoline – affecting our national security. Because energy is extremely important to our economy, it is better to produce energy in the United States so that it will always be available when we need it. Use of fossil fuels can be harmful to humans and the environment When fossil fuels are burned, they release carbon dioxide and other gases into the atmosphere. -
Commercialization and Deployment at NREL: Advancing Renewable
Commercialization and Deployment at NREL Advancing Renewable Energy and Energy Efficiency at Speed and Scale Prepared for the State Energy Advisory Board NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Management Report NREL/MP-6A42-51947 May 2011 Contract No. DE-AC36-08GO28308 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof. Available electronically at http://www.osti.gov/bridge Available for a processing fee to U.S. Department of Energy and its contractors, in paper, from: U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831-0062 phone: 865.576.8401 fax: 865.576.5728 email: mailto:[email protected] Available for sale to the public, in paper, from: U.S. -
Renewable Energy Resorces for Climate Change Mitigation
Raghuvanshi et al.: Renewable energy resources for climate change mitigation - 15 - RENEWABLE ENERGY RESOURCES FOR CLIMATE CHANGE MITIGATION S.P. RAGHUVANSHI * – A.K. RAGHAV – A. CHANDRA Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India. (phone : +91-11-26591227) *Corresponding author e-mail: [email protected] (Received 13rd November 2006 ; accepted 4 th July 2007) Abstract. Climate change has been identified as one of the greatest challenge by all the nations, government, business and citizens of the globe. The threats of climate change on our green planet ‘Earth’ demands that renewable energy share in the total energy generation and consumption should be substantially increased as a matter of urgency. India’s energy development programme has been put under severe pressure with the ever-increasing demand supply gap. Due to predominance of fossil fuels in the generation mix, there are large negative environmental externalities caused by electricity generation. So it has become imperative to develop and promote alternative energy sources that can lead to sustainability of energy and environment system. Renewable electricity has become synonymous with CO2 reduction. Present communication provides a brief description about such alternative and sustained energy sources, i.e., renewable energy resources, their potential and achievements in India. Also role as important tool for climate change mitigation . Keywords: Renewable energy, GHGs, Climate change, Carbon dioxide, mitigation Introduction Climate change has implications for both human and natural systems and could lead to significant changes in resource use production and economic activity. In response to the impact and possible affects of climate change international, regional, national and local initiatives are being developed and implemented to limit and mitigate GHGs concentration in the Earth’s atmosphere. -
National Policies and the Role of Communities, Cities and Regions
CLIMATE CHANGE AND RENEWABLE ENERGY NATIONAL POLICIES AND THE ROLE OF COMMUNITIES, CITIES AND REGIONS A report from the International Renewable Energy Agency (IRENA) to the G20 Climate Sustainability Working Group (CSWG) JUNE 2019 © IRENA 2019 Unless otherwise stated, material in this publication may be freely used, shared, copied, reproduced, printed and/or stored, provided that appropriate acknowledgement is given to IRENA as the source and copyright holder. Material in this publication that is attributed to third parties may be subject to separate terms of use and restrictions, and appropriate permissions from these third parties may need to be secured before any use of such material. ISBN: 978-92-9260-136-2 Citation: IRENA (2019), Climate Change and Renewable Energy: National policies and the role of communities, cities and regions (Report to the G20 Climate Sustainability Working Group (CSWG)), International Renewable Energy Agency, Abu Dhabi. About IRENA The International Renewable Energy Agency (IRENA) is an intergovernmental organisation that supports countries in their transition to a sustainable energy future and serves as the principal platform for international co-operation, a centre of excellence, and a repository of policy, technology, resource and financial knowledge on renewable energy. IRENA promotes the widespread adoption and sustainable use of all forms of renewable energy, including bioenergy, geothermal, hydropower, ocean, solar and wind energy, in the pursuit of sustainable development, energy access, energy security and low-carbon economic growth and prosperity. www.irena.org Acknowledgements G20 Climate Sustainability Working Group members provided valuable comments and suggestions on this study. The report was prepared by Elisa Asmelash and Ricardo Gorini. -
Energy and the Hydrogen Economy
Energy and the Hydrogen Economy Ulf Bossel Fuel Cell Consultant Morgenacherstrasse 2F CH-5452 Oberrohrdorf / Switzerland +41-56-496-7292 and Baldur Eliasson ABB Switzerland Ltd. Corporate Research CH-5405 Baden-Dättwil / Switzerland Abstract Between production and use any commercial product is subject to the following processes: packaging, transportation, storage and transfer. The same is true for hydrogen in a “Hydrogen Economy”. Hydrogen has to be packaged by compression or liquefaction, it has to be transported by surface vehicles or pipelines, it has to be stored and transferred. Generated by electrolysis or chemistry, the fuel gas has to go through theses market procedures before it can be used by the customer, even if it is produced locally at filling stations. As there are no environmental or energetic advantages in producing hydrogen from natural gas or other hydrocarbons, we do not consider this option, although hydrogen can be chemically synthesized at relative low cost. In the past, hydrogen production and hydrogen use have been addressed by many, assuming that hydrogen gas is just another gaseous energy carrier and that it can be handled much like natural gas in today’s energy economy. With this study we present an analysis of the energy required to operate a pure hydrogen economy. High-grade electricity from renewable or nuclear sources is needed not only to generate hydrogen, but also for all other essential steps of a hydrogen economy. But because of the molecular structure of hydrogen, a hydrogen infrastructure is much more energy-intensive than a natural gas economy. In this study, the energy consumed by each stage is related to the energy content (higher heating value HHV) of the delivered hydrogen itself. -
Natural Gas and Propane
Construction Concerns: Natural Gas and Propane Article by Gregory Havel September 28, 2015 For the purposes of this article, I will discuss the use of natural gas and propane [liquefied propane (LP)] gas in buildings under construction, in buildings undergoing renovation, and in the temporary structures that are found on construction job sites including scaffold enclosures. In permanent structures, natural gas is carried by pipe from the utility company meter to the location of the heating appliances. Natural gas from utility companies is lighter than air and is odorized. In temporary structures and in buildings under construction or renovation, the gas may be carried from the utility company meter by pipe or a hose rated for natural gas at the pressure to be used to the location of the heating appliances. These pipes and hoses must be properly supported and must be protected from damage including from foot and wheeled traffic. The hoses, pipes, and connections must be checked regularly for leaks. For permanent and temporary structures, LP gas is usually stored in horizontal tanks outside the structure (photo 1) at a distance from the structure. September 28, 2015 (1) In Photo 1, note the frost on the bottom third of the tank that indicates the approximate amount of LP that is left in the tank. LP gas for fuel is heavier than air and is odorized. It is carried from the tank to the heating appliances by pipe or hose rated for LP gas at the pressure to be used. As it is for natural gas, these pipes and hoses must be properly supported and protected from damage including from foot and wheeled traffic. -
Climate Business Plan for Washington, D.C
Natural Gas and its Contribution to a Low Carbon Future Climate Business Plan for Washington, D.C. MARCH 2020 ALTAGAS // NATURAL GAS AND ITS CONTRIBUTION TO A LOW CARBON FUTURE Forward Looking Statement This Climate Business Plan, prepared solely for the Company’s operations in the District of Columbia, contains forward-looking statements, which are subject to the inherent uncertainties in predicting future results and conditions. Such statements are based on our current expectations as of the date we filed this business plan, and we do not undertake to update or revise such forward-looking statements, except as may be required by law. Statements contained in this business plan concerning expectations, beliefs, plans, objectives, goals, strategies, expenditures, recovery of expenditures, future environmental matters, regulatory and legislative proposals, future events or performance and underlying assumptions and other statements that are other than statements of historical fact are “forward-looking statements.” Forward-looking statements are based on management’s beliefs and assumptions based on information available at the time the statement is made and can often be identified by terms and phrases that include “anticipate,” “believe,” “intend,” “estimate,” “expect,” “continue,” “should,” “could,” “may,” “plan,” “project,” “predict,” “will,” “potential,” “forecast,” “target,” “guidance,” “outlook” or other similar terminology. The Company believes that it has chosen these assumptions or bases in good faith and that they are reasonable. -
Recycled Carbon Fuels in the Renewable Energy Directive Introduction
POLICY BRIEFING RECYCLED CARBON FUELS IN THE RENEWABLE ENERGY DIRECTIVE INTRODUCTION The revised Renewable Energy Directive1 (REDII) establishes a common framework for the promotion of energy from renewable sources in the electricity, heating and cooling, and transport sectors for the 2021-2030 period. As a part of the transport target, member states may choose to include “Recycled Carbon Fuels.” The REDII includes liquid and gaseous fuels that are either produced from (a) liquid or solid waste streams of non-renewable origin or (b) from waste processing gas and exhaust gas of non-renewable origin as part of the definition of “recycled carbon fuels.”2 This means that fuels derived from non-renewable waste streams (such as fossil wastes like plastic, rubber, gaseous wastes etc.) could be promoted through transport targets and support schemes, despite recognition that they cannot be considered to contribute to overall renewable energy targets. This briefing highlights key concerns and recommendations to ensure that the REDII is implemented in a way that decarbonises transport fuels in a sustainable manner. 1 Directive (EU) 2018/2001 of the European Parliament and of the Council of 11 December 2018 on the promotion of the use of energy from renewable source (Renewable Energy Directive) 2 ‘recycled carbon fuels’ means liquid and gaseous fuels that are produced from liquid or solid waste streams of non-renewable origin which are not suitable for material recovery in accordance with Article 4 of Directive 2008/98/EC, or from waste processing gas and exhaust gas of non-renewable origin which are produced as an unavoidable and unintentional consequence of the production process in industrial installations. -
2002-00201-01-E.Pdf (Pdf)
report no. 2/95 alternative fuels in the automotive market Prepared for the CONCAWE Automotive Emissions Management Group by its Technical Coordinator, R.C. Hutcheson Reproduction permitted with due acknowledgement Ó CONCAWE Brussels October 1995 I report no. 2/95 ABSTRACT A review of the advantages and disadvantages of alternative fuels for road transport has been conducted. Based on numerous literature sources and in-house data, CONCAWE concludes that: · Alternatives to conventional automotive transport fuels are unlikely to make a significant impact in the foreseeable future for either economic or environmental reasons. · Gaseous fuels have some advantages and some growth can be expected. More specifically, compressed natural gas (CNG) and liquefied petroleum gas (LPG) may be employed as an alternative to diesel fuel in urban fleet applications. · Bio-fuels remain marginal products and their use can only be justified if societal and/or agricultural policy outweigh market forces. · Methanol has a number of disadvantages in terms of its acute toxicity and the emissions of “air toxics”, notably formaldehyde. In addition, recent estimates suggest that methanol will remain uneconomic when compared with conventional fuels. KEYWORDS Gasoline, diesel fuel, natural gas, liquefied petroleum gas, CNG, LNG, Methanol, LPG, bio-fuels, ethanol, rape seed methyl ester, RSME, carbon dioxide, CO2, emissions. ACKNOWLEDGEMENTS This literature review is fully referenced (see Section 12). However, CONCAWE is grateful to the following for their permission to quote in detail from their publications: · SAE Paper No. 932778 ã1993 - reprinted with permission from the Society of Automotive Engineers, Inc. (15) · “Road vehicles - Efficiency and emissions” - Dr. Walter Ospelt, AVL LIST GmbH. -
Material Safety Data Sheet
SAFETY DATA SHEET EFFECTIVE JUNE 2016 SECTION 1 – PRODUCT & COMPANY IDENTIFICATION Product Name: Commercial Odorized Propane Chemical Name: Propane (C3H8) Chemical Family: Petroleum Hydrocarbon Common Names: Liquefied Petroleum Gas, LP-Gas, LPG, Bottle Gas Intended Use: Propane is a liquid fuel Distributor: Campora Propane Service, PO Box 31717 Stockton, CA 95213 Emergency Response: CHEMTREC (800) 424-9300 General Information: (209) 941-2994 SECTION 2 – CHEMICAL HAZARD CLASSIFICATION & WARNING INFORMATION Fire Hazard NFPA CLASSES: 1-Slight 2-Moderate 3-Serious Health Hazard Reactivity 4-Severe Physical hazards Flammable gases Category 1 Gases under pressure Liquefied gas Health hazards Acute toxicity, inhalation Category 4 Germ cell mutagenicity Category 1B Carcinogenicity Category 1A Reproductive toxicity Category 1A Specific target organ toxicity, repeated Category 2 exposure OSHA defined hazards Not classified. Label Elements Signal Word Danger Hazard Statement Propane (also called LPG-Liquefied Petroleum Gas or LP-Gas) is a liquid fuel stored under pressure. In most systems, propane is vaporized to a gas before it leaves the tank. Propane is highly flammable when mixed with air (oxygen) and can be ignited by many sources, including open flames, smoking materials, electrical sparks, and static electricity. Severe “freeze burn” or frostbite can result if propane liquid comes in contact with your skin. Extremely flammable gas. Harmful if inhaled. May cause genetic defects. May cause cancer. May damage fertility or the unborn child. May cause damage to Blood through prolonged or repeated exposure. May cause cryogenic burns or injury. Propane is a simple asphyxiant. Precautionary statement General Read and follow all Safety Data Sheets (SDS’S) before use.