hydrocarbons

Renewable Aromatic Hydrocarbons from Waste Cooking Oil over Hierarchical Imidazole Supported Zeolite

J. Mater. Chem. A, 2024, Accepted Manuscript
DOI: 10.1039/D4TA00416G, Paper
Bipul Sarkar, Bhanu Joshi, Omvir Singh, Ankit Agrawal, Neha Dhiman, Bhanu Prasad Vempatapu, Navin Gopinathan , Anjan Ray
Unlike coal, oil, or natural gas, waste cooking oil (WCO) acts as a renewable source of carbon. It can be converted into energy, fuels, and fine chemicals, instead of being...
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hydrocarbons

Theoretical investigation of the effect of radical substituents on the open-shell character of polycyclic aromatic hydrocarbons

New J. Chem., 2024, Advance Article
DOI: 10.1039/D4NJ00555D, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Tomohito Shinozuka, Daiki Shimizu, Kenji Matsuda
Radical substituents was found to significantly alter the open-shell character y of PAHs compared to non-radical substituents.
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hydrocarbons

Identification and quantification of local antiaromaticity in polycyclic aromatic hydrocarbons (PAHs) based on the magnetic criterion

Org. Biomol. Chem., 2024, 22,3035-3044
DOI: 10.1039/D4OB00114A, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Erich Kleinpeter, Andreas Koch
The ring current effect of entirely and partly (anti)aromatic PCHs are calculated and employed to visualize, qualify and quantify existing (anti)aromaticity, especially to decide unequivocally between PAHs and PAAHs.
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hydrocarbons

Probing the occurrence, sources and cancer risk assessment of polycyclic aromatic hydrocarbons in PM2.5 in a humid metropolitan city in China

Environ. Sci.: Processes Impacts, 2024, Advance Article
DOI: 10.1039/D3EM00566F, Paper
Decai Liu, Xingquan Li, Jiaxin Liu, Fengwen Wang, Yan Leng, Zhenliang Li, Peili Lu, Neil L. Rose
Fifty-two consecutive PM2.5 samples from December 2021 to February 2022 (the whole winter) were collected in the center of Chongqing, a humid metropolitan city in China.
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hydrocarbons

Synthesis of new-type, cost-effective and insensitive energetic materials via nitration of solid bituminous hydrocarbons

RSC Adv., 2024, 14,35971-35979
DOI: 10.1039/D4RA06329E, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Sahar Abdolahi, Mohammad Soleiman-Beigi
A global trend for the development of energetic materials using various sources is promoted by researchers annually.
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hydrocarbons

Catalytic degradation of pine sawdust over heterotopic Ca–Fe and HZSM-5 to produce aromatic hydrocarbons

React. Chem. Eng., 2024, Advance Article
DOI: 10.1039/D3RE00572K, Paper
Huifen Kang, Xintong Guo, Mei An, Conghua Ma, Guozhang Chang, Qingjie Guo, Jingjing Ma
Up to 90.47% aromatic proportion and a 31.02 mg g−1 BTEX yield were obtained by heterogeneous catalysis of Ca–Fe and HZSM-5.
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hydrocarbons

Gulf of Mexico oil spill exposed Peregrine falcon species to harmful hydrocarbons

Migrating tundra peregrine falcons (Falco peregrinus tundrius) experienced increased levels of harmful hydrocarbons in their blood following the 2010 Deepwater Horizon oil spill in the Gulf of Mexico, a new study finds. Blood from juvenile females was found to have the highest levels of contamination.




hydrocarbons

Harmful polycyclic aromatic hydrocarbons removed from soil using wastewater sludge and polyacrylamide

Wastewater sludge is widely used to remove toxic polycyclic aromatic hydrocarbons (PAHs) from soil, and yet the mechanisms underlying this process remain unclear. A new study reveals the extent of PAH removal following different treatments, and could provide a useful resource for those looking to diminish the effects that these pollutants have both on people and on the environment.




hydrocarbons

Pollutants at India’s biggest ship recycling yard, including heavy metals and petroleum hydrocarbons, quantified

A study of the pollution caused by ship scrapping in Alang, India, shows significantly higher levels of heavy metal and petroleum hydrocarbons in sediment and seawater, compared to a control site. The researchers also found reduced populations of zooplankton — a critical food source for marine biota — and increased numbers of pathogenic bacteria.




hydrocarbons

Exposure to polycyclic aromatic hydrocarbons: first nationwide survey in Spain

The BIOAMBIENT.ES project is the first human biomonitoring programme to estimate levels of environmental pollutants at national level in Spain. This study reports its findings on polycyclic aromatic hydrocarbons (PAHs), chemicals that are ubiquitous in the environment. The results will help to establish reference values, identify highly exposed populations and evaluate effectiveness of policies.




hydrocarbons

Method for the manufacture of branched saturated hydrocarbons

The invention relates to a method for the manufacture of branched saturated hydrocarbons, said method comprising the steps where a feed comprising olefins having at least 10 carbons is simultaneously hydrogenated and isomerized in the presence of hydrogen at a temperature of 100-400° C., under hydrogen partial pressure of 0.01-10 MPa, in the presence of a catalyst comprising a metal selected from the metals of Group VIIIb of the Periodic Table of Elements, a molecular sieve selected from ten member ring molecular sieves, twelve member ring molecular sieves and mesoporous molecular sieves embedded with zeolite, and a carrier, to yield branched saturated hydrocarbons.




hydrocarbons

Preparation of fluorinated olefins via catalytic dehydrohalogenation of halogenated hydrocarbons

A process for making a fluorinated olefin having the step of dehydrochlorinating a hydrochlorofluorocarbon having at least one hydrogen atom and at least one chlorine atom on adjacent carbon atoms, preferably carried out in the presence of a catalyst selected from the group consisting of (i) one or more metal halides, (ii) one or more halogenated metal oxides, (iii) one or more zero-valent metals/metal alloys, (iv) a combination of two or more of the foregoing.




hydrocarbons

Preparation of iron/carbon nanocomposite catalysts for Fischer-Tropsch synthesis reaction and related production of liquid hydrocarbons

Iron/carbon (Fe/C) nanocomposite catalysts are prepared for Fischer-Tropsch synthesis reaction. A preparation method includes steps of mixing iron hydrate salts and a mesoporous carbon support to form a mixture, infiltrating the iron hydrate salts into the carbon support through melt infiltration of the mixture near a melting point of the iron hydrate salts, forming iron-carbide particles infiltrated into the carbon support through calcination of the iron hydrate salts infiltrated into the carbon support under a first atmosphere, and vacuum-drying the iron-carbide particles after passivation using ethanol. Using such catalysts, liquid hydrocarbons are produced.




hydrocarbons

Production of hydrocarbons

A process for producing hydrocarbons and, optionally, oxygenates of hydrocarbons is provided. A synthesis gas comprises hydrogen, carbon monoxide and N-containing contaminants selected from the group consisting of HCN, NH3, NO, RXNH3-X, R1—CN and heterocyclic compounds containing at least one nitrogen atom as a ring member of a heterocyclic ring of the heterocyclic compound. The N-containing contaminants constitute, in total, at least 100 vppb but less than 1 000 000 vppb of the synthesis gas. The synthesis gas is contacted at an elevated temperature and an elevated pressure, with a particulate supported Fischer-Tropsch synthesis catalyst. The catalyst comprises a catalyst support, Co in catalytically active form supported on the catalyst support, and a dopant selected from the group consisting of platinum (Pt), palladium (Pd), ruthenium (Ru) and/or rhenium (Re). The dopant level is expressed by a formula. Hydrocarbons and, optionally, oxygenates of hydrocarbons are obtained.




hydrocarbons

Process for producing synthetic hydrocarbons from carbonaceous materials

A method for producing synthetic hydrocarbons from at least one carbonaceous material is provided. The method includes evaluating the resources of the carbonaceous material available on a determined territory; determining from the resources a total production capacity of synthetic hydrocarbons; determining from the total production capacity, a number of elementary production units required for obtaining the total production capacity, each elementary production unit having an elementary production capacity between a 100 and a 1,000 barrels a day of synthetic hydrocarbons; building the number of elementary production units on the territory; transporting the carbonaceous material from the territory as far as the elementary production units; producing the synthetic hydrocarbons in the elementary production units from the transported carbonaceous material.




hydrocarbons

Method and system for processing viscous liquid crude hydrocarbons

A method and system for handling viscous liquid crude hydrocarbons is disclosed. The method involves (a) solvent deasphalting at least a portion of an asphaltene-containing liquid crude hydrocarbon feedstock to form an asphaltene fraction and a deasphalted oil (DAO) fraction essentially free of asphaltenes; (b) adjusting the density of the asphaltene fraction to substantially the same density of a carrier for the asphaltene fraction; (c) forming coated asphaltene particles from the asphaltene fraction of step (b); (d) slurrying the coated asphaltene particles with the carrier; and (e) transporting the slurry to a treatment facility or a transportation carrier.




hydrocarbons

System and method for obtaining hydrocarbons from organic and inorganic solid waste

This invention relates to a system for obtaining hydrocarbons from organic or inorganic solid waste, wherein said system comprises: an inlet chamber, within which is a mixer assembly which mixes and conveys the waste through said chamber, which is also at ambient temperature, thus avoiding any thermal shock to the solid waste for processing; a dehydration chamber with a mixing assembly therein, and the upper part of this chamber contains an expansion chamber for promoting more efficient molecular breakdown; the thermal breakdown is carried out in two reactors which are operated at different temperatures, the first thermal disassociation reactor which has inside a mixer unit, and which in its upper part houses an expansion chamber, the second thermal breakdown reactor, therein has a mixer unit, and in the upper portion thereof houses an expansion chamber and at the top end thereof a vertical expansion tower; wherein the thermolytic steam is homogenized, a separator of heavy hydrocarbons, which does not require an additional cooling system, a multiple valve determines the temperature and oxygen content of the vapors and conveys them to the expansion tower in order to optimize the production of hydrocarbons, and to obtain a liquid hydrocarbon with high heating value.




hydrocarbons

Method for converting waste plastic to lower-molecular weight hydrocarbons, particularly hydrocarbon fuel materials, and the hydrocarbon material produced thereby

The method produces a hydrocarbonaceous fluid (a liquid mixture of hydrocarbons, or in other words a mixture of hydrocarbons which is liquid at ambient room temperature and atmospheric pressure), which functionally is a liquid hydrocarbon fuel, from a feed of waste plastic. The method can comprise the steps of: (step 1) melting a feed of substantially solid waste plastic in an aerobic atmosphere (for instance, air) whereby a waste-plastic melt is produced; (step 2) distilling at least a portion of the waste-plastic melt whereby a hydrocarbonaceous distillate is produced; and (step 3) collecting the hydrocarbonaceous distillate. That distillate is generally referred to above as a condensate. The method can include the step of comminuting the feed of substantially solid waste plastic into pieces substantially no greater than about 1.5 cm2 prior to step 1. The method can also include the step of adding an effective amount of a cracking catalyst to the waste plastic prior to step 2.




hydrocarbons

Split-shell fractionation columns and associated processes for separating aromatic hydrocarbons

Split-shell fractionation columns and associated processes for separating aromatic hydrocarbons. A split-shell fractionation column includes a housing shell having a first height and a partition having a second height and disposed within the housing shell. The partition includes first and second vertically oriented baffles separated by a gap region, a seal plate connecting top ends of the baffles, a first input port formed to extend through the partition for the introduction of a gas into the gap region, and a first output port formed to extend outwardly from a bottom of the gap region and through the housing shell. The partition defines a first distillation zone and a second distillation zone within the housing shell.




hydrocarbons

Extraction of hydrocarbons from hydrocarbon-containing materials

A method of extracting hydrocarbon-containing organic matter from a hydrocarbon-containing material includes the steps of providing a first liquid comprising a turpentine liquid; contacting the hydrocarbon-containing material with the turpentine liquid to form an extraction mixture; extracting the hydrocarbon material into the turpentine liquid; and separating the extracted hydrocarbon material from a residual material not extracted.




hydrocarbons

Separation and extraction of hydrocarbons from source material

Systems and methods for extracting recoverable materials from source materials are provided. Source materials are introduced into a furnace. A condition is created within the furnace in which a gaseous pressure within the furnace is less than an atmospheric pressure outside of the furnace by removing air from within the furnace with a vacuum pump. Hydrocarbons contained within the source material are separated from the source material without using a significant amount of water by heating the source material to a temperature sufficient to cause the hydrocarbons to liquefy or vaporize. The liquefied hydrocarbons or vaporized hydrocarbons are then captured.




hydrocarbons

Biphenyl benzyl ether marker compounds for liquid hydrocarbons and other fuels and oils

A compound having formula (I) wherein G represents at least one substituent selected from the group consisting of C1-C12 alkyl and C1-C12 alkoxy.




hydrocarbons

Bisphenol A compounds as markers for liquid hydrocarbons and other fuels and oils

A method for marking a petroleum hydrocarbon or a liquid biologically derived fuel by adding at least one compound having formula (I), wherein R1 and R2 independently represent hydrogen or C1-C4 alkyl groups, and G represents hydrogen or at least one substituent selected from the group consisting of C1-C18 alkyl and C1-C18 alkoxy.




hydrocarbons

Systems and Methods for Recovering Desired Light Hydrocarbons from Refinery Waste Gas Using a Back-End Turboexpander

Systems and methods for recovering light hydrocarbons from refinery waste gas using a back-end turboexpander to generate a higher recovery of the light hydrocarbons for use as petrochemical feedstock and to remove the liquid light hydrocarbons before entering the turboexpander.




hydrocarbons

Health consequences of microbial interactions with hydrocarbons, oils, and lipids

9783319724737 (electronic bk.)




hydrocarbons

Consequences of microbial interactions with hydrocarbons, oils, and lipids : biodegradation and bioremediation

9783319445359 (electronic bk.)




hydrocarbons

Anaerobic utilization of hydrocarbons, oils, and lipids

9783319503912 (electronic bk.)




hydrocarbons

Politics Trump Economics in the Complex Game of Eastern Mediterranean Hydrocarbons


A 2010 publication of the U.S. Geological Survey caused major excitement in Cyprus, an island that at the time was suffering from the economic collapse of its neighbor and major trading partner, Greece. According to the publication, the seabed of the Eastern Mediterranean could contain up to 120 trillion cubic feet (tcf) of natural gas.3 Three years later, the Cypriot administration has high hopes that natural gas exports may get Cyprus—the third smallest European Union member state—back on its feet, after its own financial collapse in 2012. Unfortunately for the Cypriots, the reality on the ground is sobering, and it is currently unclear whether Cyprus will become a producer, or an exporter, of natural gas. Around Cyprus, other countries hope to benefit from the energy potential as well, including Israel, Lebanon and the Palestinian Authority. In the Israeli Exclusive Economic Zone (EEZ), in particular, substantial reserves of natural gas have been found, though the verdict is out whether these will in fact all be produced.

Exploration of Cyprus’s offshore concessions is at an early stage. Energy majors such as ENI and Total are among the first to explore possible gas (and oil) reserves and they expect results not before 2015. To date, only two test wells have been drilled by Houston-based Noble Energy. Proven reserves have been downgraded since and are currently estimated to be between 3 and 5 tcf. At this level of reserves, investing in a natural gas liquefaction terminal, which the Cypriot administration has supported, is not economically viable. A better alternative would be to construct a pipeline to Turkey, which has a large and rapidly growing market for natural gas.

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hydrocarbons

France Export: Natural Hydrocarbons, Prds Of Mining, Electricity

Export: Natural Hydrocarbons, Prds Of Mining, Electricity in France decreased to 613 EUR Million in March from 759 EUR Million in February of 2020. Export: Natural Hydrocarbons, Prds Of Mining, Elec in France averaged 707.67 EUR Million from 2000 until 2020, reaching an all time high of 1094 EUR Million in March of 2011 and a record low of 414 EUR Million in April of 2000. This page includes a chart with historical data for France Export: Natural Hydrocarbons, Prds of Mining, Ele.




hydrocarbons

France Export: Natural Hydrocarbons,Prds Of Mining, Electricity

Export: Natural Hydrocarbons,Prds Of Mining, Electricity in France decreased to 637 EUR Million in March from 775 EUR Million in February of 2020. Export: Natural Hydrocarbons,Prds Of Mining, Elect in France averaged 706.93 EUR Million from 2000 until 2020, reaching an all time high of 1227 EUR Million in March of 2011 and a record low of 337 EUR Million in August of 2003. This page includes a chart with historical data for France Export: Natural Hydrocarbons,prds of Mining, Elec.




hydrocarbons

Directorate general of Hydrocarbons

Directorate general of Hydrocarbons




hydrocarbons

A traceless clean-up method coupled with gas chromatography and mass spectrometry for analyzing polycyclic aromatic hydrocarbons in complex plant leaf matrices

Analyst, 2020, 145,3266-3273
DOI: 10.1039/D0AN00128G, Paper
Xiangzi Jin, Han Yeong Kaw, Huijie Li, Zhao Wang, Jinhua Zhao, Xiangfan Piao, Donghao Li, Dongri Jin, Miao He
This study developed a traceless clean-up method by combining solid phase extraction (SPE) with gas purge–microsyringe extraction (GP–MSE) to purify sample extracts for the determination of polycyclic aromatic hydrocarbons (PAHs) in plant leaves.
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hydrocarbons

Hydrodecarboxylation of fatty acids into liquid hydrocarbons over a commercial Ru/C catalyst under mild conditions

New J. Chem., 2020, Advance Article
DOI: 10.1039/D0NJ00730G, Letter
Zihao Zhang, Francis Okejiri, Yafei Li, Jing Li, Jie Fu
100% stearic acid conversion can be achieved at even 160 °C alongside a 90.1% yield of heptadecane.
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hydrocarbons

Copper-catalyzed direct amination of benzylic hydrocarbons and inactive aliphatic alkanes with arylamines

Org. Biomol. Chem., 2020, 18,3263-3268
DOI: 10.1039/D0OB00491J, Communication
Hua Yao, Bo Xie, Xiaoyang Zhong, Shengzhou Jin, Sen Lin, Zhaohua Yan
A new synthetic method toward direct C–N bond formation through saturated C–H amination of benzylic hydrocarbons and inactive aliphatic alkanes with primary aromatic amines under an inexpensive catalyst/oxidant (Cu/DTBP) system has been developed.
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hydrocarbons

[ASAP] Particulate Matter Toxicity Is Nrf2 and Mitochondria Dependent: The Roles of Metals and Polycyclic Aromatic Hydrocarbons

Chemical Research in Toxicology
DOI: 10.1021/acs.chemrestox.0c00007




hydrocarbons

[ASAP] Influence of the Combination System of Wet Flue Gas Desulfurization and a Wet Electrostatic Precipitator on the Distribution of Polycyclic Aromatic Hydrocarbons in Flue Gas from a Coal-Fired Industrial Plant

Energy & Fuels
DOI: 10.1021/acs.energyfuels.0c00389




hydrocarbons

Hydrocarbons, oils and lipids: diversity, origin, chemistry and fate / Heinz Wilkes, editor

Online Resource




hydrocarbons

Biogenesis of hydrocarbons / editors, Alfons J.M. Stams, Diana Sousa

Online Resource




hydrocarbons

Introductory organic chemistry and hydrocarbons: a physical chemistry approach / Caio Lima Firme

Online Resource




hydrocarbons

Conversion of carbon dioxide into hydrocarbons. Inamuddin, Abdullah M. Asiri, Eric Lichtfouse, editors

Online Resource




hydrocarbons

Aerobic utilization of hydrocarbons, oils, and lipids / Fernando Rojo, editor

Online Resource




hydrocarbons

Consequences of microbial interactions with hydrocarbons, oils, and lipids: biodegradation and bioremediation / editor, Robert Steffan

Online Resource




hydrocarbons

Consequences of microbial interactions with hydrocarbons, oils, and lipids: biodegradation and bioremediation / Robert J. Steffan, editor

Online Resource




hydrocarbons

Fast magnetic solid-phase extraction using Fe3O4-NH2@MOF material for monohydroxy polycyclic aromatic hydrocarbons in urine of coke-oven workers

Anal. Methods, 2020, Accepted Manuscript
DOI: 10.1039/D0AY00449A, Paper
Yahui Wang, Meng Yan, Qianqian Ji, Manman Wang, Qian Wang, Xue-Sheng Wang, Yulan Hao
In this work, magnetic material (Fe3O4-NH2@MIL-101) was successfully prepared, and the material was used as a sorbent for the magnetic solid-phase extraction (MSPE) of trace level monohydroxy polycyclic aromatic hydrocarbons...
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hydrocarbons

P-x measurements for 2-ethoxyethanol and four chlorinated hydrocarbons at 303.15 K




hydrocarbons

Occupational exposure to ultrafine particles and polycyclic aromatic hydrocarbons from candle emissions




hydrocarbons

The carbon isotope biogeochemistry of the individual hydrocarbons in bat guano and the ecology of the insectivorous bats in the region of Carlsbad, New Mexico




hydrocarbons

Sulfuric Acid Speleogenesis of Carlsbad Cavern and Its Relationship to Hydrocarbons, Delaware Basin, New Mexico and Texas




hydrocarbons

Ni-Based Heterogeneous Catalysts for the Transformation of Fatty Acids into Higher Yields of O-Free Hydrocarbons

Green Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0GC00853B, Paper
Diego Valencia, Citlalli Zenteno, Diana Gomora-Herrera, María Teresa Gómez-Pérez, Jorge Aburto
A series of novel catalytic materials were synthesized by changing the chemical compounds in the impregnation solutions. A rigid, aromatic and bidentate molecule 1,10-phenanthroline (PhN) was used as a ligand...
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