Liquefied Petroleum Gas (LPG) General Information
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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. -
Anaerobic Degradation of Methanethiol in a Process for Liquefied Petroleum Gas (LPG) Biodesulfurization
Anaerobic degradation of methanethiol in a process for Liquefied Petroleum Gas (LPG) biodesulfurization Promotoren Prof. dr. ir. A.J.H. Janssen Hoogleraar in de Biologische Gas- en waterreiniging Prof. dr. ir. A.J.M. Stams Persoonlijk hoogleraar bij het laboratorium voor Microbiologie Copromotor Prof. dr. ir. P.N.L. Lens Hoogleraar in de Milieubiotechnologie UNESCO-IHE, Delft Samenstelling promotiecommissie Prof. dr. ir. R.H. Wijffels Wageningen Universiteit, Nederland Dr. ir. G. Muyzer TU Delft, Nederland Dr. H.J.M. op den Camp Radboud Universiteit, Nijmegen, Nederland Prof. dr. ir. H. van Langenhove Universiteit Gent, België Dit onderzoek is uitgevoerd binnen de onderzoeksschool SENSE (Socio-Economic and Natural Sciences of the Environment) Anaerobic degradation of methanethiol in a process for Liquefied Petroleum Gas (LPG) biodesulfurization R.C. van Leerdam Proefschrift ter verkrijging van de graad van doctor op gezag van de rector magnificus van Wageningen Universiteit Prof. dr. M.J. Kropff in het openbaar te verdedigen op maandag 19 november 2007 des namiddags te vier uur in de Aula Van Leerdam, R.C., 2007. Anaerobic degradation of methanethiol in a process for Liquefied Petroleum Gas (LPG) biodesulfurization. PhD-thesis Wageningen University, Wageningen, The Netherlands – with references – with summaries in English and Dutch ISBN: 978-90-8504-787-2 Abstract Due to increasingly stringent environmental legislation car fuels have to be desulfurized to levels below 10 ppm in order to minimize negative effects on the environment as sulfur-containing emissions contribute to acid deposition (‘acid rain’) and to reduce the amount of particulates formed during the burning of the fuel. Moreover, low sulfur specifications are also needed to lengthen the lifetime of car exhaust catalysts. -
Category Name C2-C4 Aliphatic Thiols Category Chemical Names
SIAM 30, 20-22 April 2010 US/ICCA Category Name C2-C4 Aliphatic Thiols Category 1-Ethanethiol (CAS No. 75-08-1) Chemical Names 1-Propanethiol (CAS No.107-03-9) and CAS Nos. 1-Butanethiol (CAS No.109-79-5) 2-Propanethiol, 2-Methyl (CAS No. 75-66-1) H2 H2 C HS C C CH HS CH3 3 H2 1-Ethanethiol 1-Propanethiol (Ethyl Mercaptan) (n-Propyl Mercaptan) H H CH Structural Formulae 2 2 3 C C HS C CH 3 H3C SH H2 1-Butanethiol CH3 (n-Butyl Mercaptan) 2-Propanethiol, 2-Methyl (t-Butyl Mercaptan) SUMMARY CONCLUSIONS OF THE SIAR Category Rationale The C2-C4 Aliphatic Thiols contain a sulfhydryl (SH) functional group with a straight or branched aliphatic carbon chain that characterizes the category. The four aliphatic thiols are soluble in water and have reasonably comparable melting points, initial boiling points and vapor pressures, as well as very low and objectionable odor thresholds. The water solubility and narrow range of octanol-water partition coefficients (log Kow) for the three linear C2-C4 Aliphatic Thiols indicate that they will have similar environmental fate and are not expected to bioaccumulate in aquatic organisms. Ecotoxicity is similar for the three linear C2-C4 Aliphatic Thiols with data for fish, invertebrate and algae toxicity indicating a similar order of acute toxicity across the chemicals tested (ecotoxicity is less for t-butyl-mercaptan). ECOSAR has been used to address and support the data gaps for the linear category members. Environmental fate and toxicity data are available for the branched t-butyl mercaptan. -
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. -
8.6 Acidity of Alcohols and Thiols 355
08_BRCLoudon_pgs5-1.qxd 12/8/08 11:05 AM Page 355 8.6 ACIDITY OF ALCOHOLS AND THIOLS 355 ural barrier to the passage of ions. However, the hydrocarbon surface of nonactin allows it to enter readily into, and pass through, membranes. Because nonactin binds and thus transports ions, the ion balance crucial to proper cell function is upset, and the cell dies. Ion Channels Ion channels, or “ion gates,” provide passageways for ions into and out of cells. (Recall that ions are not soluble in membrane phospholipids.) The flow of ions is essen- tial for the transmission of nerve impulses and for other biological processes. A typical chan- nel is a large protein molecule imbedded in a cell membrane. Through various mechanisms, ion channels can be opened or closed to regulate the concentration of ions in the interior of the cell. Ions do not diffuse passively through an open channel; rather, an open channel contains regions that bind a specific ion. Such an ion is bound specifically within the channel at one side of the membrane and is somehow expelled from the channel on the other side. Remark- ably, the structures of the ion-binding regions of these channels have much in common with the structures of ionophores such as nonactin. The first X-ray crystal structure of a potassium- ion channel was determined in 1998 by a team of scientists at Rockefeller University led by Prof. Roderick MacKinnon (b. 1956), who shared the 2003 Nobel Prize in Chemistry for this work. The interior of the channel contains binding sites for two potassium ions; these sites are oxygen-rich, much like the interior of nonactin. -
Ethyl Mercaptan, Final AEGL Document
This PDF is available from The National Academies Press at http://www.nap.edu/catalog.php?record_id=18449 Acute Exposure Guideline Levels for Selected Airborne Chemicals: Volume 15 ISBN Committee on Acute Exposure Guideline Levels; Committee on 978-0-309-29122-4 Toxicology; Board on Environmental Studies and Toxicology; Division on Earth and Life Studies; National Research Council 294 pages 6 x 9 PAPERBACK (2013) Visit the National Academies Press online and register for... Instant access to free PDF downloads of titles from the NATIONAL ACADEMY OF SCIENCES NATIONAL ACADEMY OF ENGINEERING INSTITUTE OF MEDICINE NATIONAL RESEARCH COUNCIL 10% off print titles Custom notification of new releases in your field of interest Special offers and discounts Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the National Academies Press. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Request reprint permission for this book Copyright © National Academy of Sciences. All rights reserved. Acute Exposure Guideline Levels for Selected Airborne Chemicals: Volume 15 Committee on Acute Exposure Guideline Levels Committee on Toxicology Board on Environmental Studies and Toxicology Division on Earth and Life Studies Copyright © National Academy of Sciences. All rights reserved. Acute Exposure Guideline Levels for Selected Airborne Chemicals: Volume 15 THE NATIONAL ACADEMIES PRESS 500 FIFTH STREET, NW WASHINGTON, DC 20001 NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Insti- tute of Medicine. -
SAFETY DATA SHEET Santa Cruz Biotechnology, Inc
SAFETY DATA SHEET Santa Cruz Biotechnology, Inc. Revision date 23-Dec-2016 Version 1 1. IDENTIFICATION OF THE SUBSTANCE/PREPARATION AND OF THE COMPANY/UNDERTAKING _____________________________________________________________________________________________________________________ Product identifier Product Name Ethanethiol Product Code SC-239867 Recommended use of the chemical and restrictions on use For research use only. Not intended for diagnostic or therapeutic use. Details of the supplier of the safety data sheet Emergency telephone number Santa Cruz Biotechnology, Inc. Chemtrec 10410 Finnell Street 1.800.424.9300 (Within USA) Dallas, TX 75220 +1.703.527.3887 (Outside USA) 831.457.3800 800.457.3801 [email protected] 2. HAZARDS IDENTIFICATION _____________________________________________________________________________________________________________________ This chemical is considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200). Classification Acute toxicity - Oral Category 4 Acute toxicity - Dermal Category 4 Acute toxicity - Inhalation (Dusts/Mists) Category 4 Flammable liquids Category 1 Label elements Signal word Danger Hazard statements Harmful if swallowed Harmful in contact with skin Harmful if inhaled Extremely flammable liquid and vapor Symbols/Pictograms Precautionary Statements - Prevention Wash face, hands and any exposed skin thoroughly after handling Do not eat, drink or smoke when using this product Wear protective gloves/protective clothing/eye protection/face protection Avoid breathing -
Quantifying the Potential of Renewable Natural Gas to Support a Reformed Energy Landscape: Estimates for New York State
energies Review Quantifying the Potential of Renewable Natural Gas to Support a Reformed Energy Landscape: Estimates for New York State Stephanie Taboada 1,2, Lori Clark 2,3, Jake Lindberg 1,2, David J. Tonjes 2,3,4 and Devinder Mahajan 1,2,* 1 Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, USA; [email protected] (S.T.); [email protected] (J.L.) 2 Institute of Gas Innovation and Technology, Advanced Energy Research and Technology, Stony Brook, NY 11794, USA; [email protected] (L.C.); [email protected] (D.J.T.) 3 Department of Technology and Society, Stony Brook University, 100 Nicolls Rd, Stony Brook, NY 11794, USA 4 Waste Data and Analysis Center, Stony Brook University, 100 Nicolls Rd, Stony Brook, NY 11794, USA * Correspondence: [email protected] Abstract: Public attention to climate change challenges our locked-in fossil fuel-dependent energy sector. Natural gas is replacing other fossil fuels in our energy mix. One way to reduce the greenhouse gas (GHG) impact of fossil natural gas is to replace it with renewable natural gas (RNG). The benefits of utilizing RNG are that it has no climate change impact when combusted and utilized in the same applications as fossil natural gas. RNG can be injected into the gas grid, used as a transportation fuel, or used for heating and electricity generation. Less common applications include utilizing RNG to produce chemicals, such as methanol, dimethyl ether, and ammonia. The GHG impact should be quantified before committing to RNG. This study quantifies the potential production of biogas (i.e., Citation: Taboada, S.; Clark, L.; the precursor to RNG) and RNG from agricultural and waste sources in New York State (NYS). -
Producing Fuel and Electricity from Coal with Low Carbon Dioxide Emissions
Producing Fuel and Electricity from Coal with Low Carbon Dioxide Emissions K. Blok, C.A. Hendriks, W.C. Turkenburg Depanrnent of Science,Technology and Society University of Utrecht Oudegracht320, NL-351 1 PL Utrecht, The Netherlands R.H. Williams Center for Energy and Environmental Studies Princeton University Princeton, New Jersey08544, USA June 1991 Abstract. New energy technologies are needed to limit CO2 emissions and the detrimental effects of global warming. In this article we describe a process which produces a low-carbon gaseousfuel from coal. Synthesis gas from a coal gasifier is shifted to a gas mixture consisting mainly of H2 and CO2. The CO2 is isolated by a physical absorption process, compressed,and transported by pipeline to a depleted natural gas field where it is injected. What remains is a gaseousfuel consisting mainly of hydrogen. We describe two applications of this fuel. The first involves a combined cycle power plant integrated with the coal gasifier, the shift reactor and the CO2 recovery units. CO2 recovery and storage will increase the electricity production cost by one third. The secondprovides hydrogen or a hydrogen-rich fuel gas for distributed applications, including transportation; it is shown that the fuel can be produced at a cost comparable to projected costs for gasoline. A preliminary analysis reveals that all components of the process described here are in such a phase of development that the proposed technology is ready for demonstration. ~'> --. ~'"' .,.,""~ 0\ ~ 0\0 ;.., ::::. ~ ~ -.., 01) §~ .5~ c0 ~.., ~'> '" .~ ~ ..::. ~ ~ "'~'" '" 0\00--. ~~ ""00 Q....~~ '- ~~ --. ~.., ~ ~ ""~ 0000 .00 t¥") $ ~ .9 ~~~ .- ..~ c ~ ~ ~ .~ O"Oe) """1;3 .0 .-> ...~ 0 ~ ,9 u u "0 ...~ --. -
Natural Gas Energy Efficiency: Progress and Opportunities
Natural Gas Energy Efficiency: Progress and Opportunities Steven Nadel July 2017 Report U1708 © American Council for an Energy-Efficient Economy 529 14th Street NW, Suite 600, Washington, DC 20045 Phone: (202) 507-4000 • Twitter: @ACEEEDC Facebook.com/myACEEE • aceee.org NATURAL GAS ENERGY EFFICIENCY © ACEEE Contents About the Author ...............................................................................................................................iii Acknowledgments ..............................................................................................................................iii Executive Summary ........................................................................................................................... iv Introduction .......................................................................................................................................... 1 The Natural Gas Industry................................................................................................................... 1 Natural Gas Efficiency Trends ........................................................................................................... 2 Contributors to Natural Gas Efficiency Progress ............................................................................ 2 New Technologies .................................................................................................................... 3 Price Effects .............................................................................................................................. -
The Future of Gasification
STRATEGIC ANALYSIS The Future of Gasification By DeLome Fair coal gasification projects in the U.S. then slowed significantly, President and Chief Executive Officer, with the exception of a few that were far enough along in Synthesis Energy Systems, Inc. development to avoid being cancelled. However, during this time period and on into the early 2010s, China continued to build a large number of coal-to-chemicals projects, beginning first with ammonia, and then moving on to methanol, olefins, asification technology has experienced periods of both and a variety of other products. China’s use of coal gasification high and low growth, driven by energy and chemical technology today is by far the largest of any country. China markets and geopolitical forces, since introduced into G rapidly grew its use of coal gasification technology to feed its commercial-scale operation several decades ago. The first industrialization-driven demand for chemicals. However, as large-scale commercial application of coal gasification was China’s GDP growth has slowed, the world’s largest and most in South Africa in 1955 for the production of coal-to-liquids. consistent market for coal gasification technology has begun During the 1970s development of coal gasification was pro- to slow new builds. pelled in the U.S. by the energy crisis, which created a political climate for the country to be less reliant on foreign oil by converting domestic coal into alternative energy options. Further growth of commercial-scale coal gasification began in “Market forces in high-growth the early 1980s in the U.S., Europe, Japan, and China in the coal-to-chemicals market. -
How Natural Gas Can Support the Uptake of Renewable Energy UNITED NATIONS ECONOMIC COMMISSION for EUROPE
How Natural Gas can Support the Uptake of Renewable Energy UNITED NATIONS ECONOMIC COMMISSION FOR EUROPE How natural gas can support the uptake of renewable energy ECE ENERGY SERIES No. 66 UNITED NATIONS GENEVA, 2019 ©2019 United Nations All rights reserved worldwide Requests to reproduction excerpts or to photocopy should be addressed to the Copyright Clearance Center at copyright.com. All other queries on rights and licenses, including subsidiary rights, should be addressed to: United Nations Publications, 405 East 42nd St, S-09FW001, New York, NY 10017, United States of America. Email: [email protected]; website: https://shop.un.org. The findings, interpretations and conclusions expressed herein are those of the author(s) and do not necessarily reflect the views of the United Nations or its officials or Member States. The designation employed and the presentation of material on any map in this work do not imply the expression of any opinion whatsoever on the part of the United Nations concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. Mention of any firm, licensed process or commercial products does not imply endorsement by the United Nations. This publication is issued in English and Russian. United Nations publication issued by the United Nations Economic Commission for Europe. ECE/ENERGY/130 UNITED NATIONS PUBLICATION Sales No.: E.20.II.E.15 ISBN: 978-92-1-117229-4 eISBN: 978-92-1-004658-9 ISSN: 1014-7225 eISSN: 2412-0022 ii Acknowledgments This publication is one of the outcomes of the project called “Improved understanding of the UNECE member States on the role of natural gas in achieving 2030 Agenda for Sustainable Development and the Paris Climate Agreement” that complements the project “Strengthening capacity of the UNECE member States to achieve the energy-related Sustainable Development Goals”.