Development of methods for the stabilization of pyrolytic oils

by M. B Polk

Publisher: U.S. Environmental Protection Agency, Municipal Environmental Research Laboratory, Publisher: Center for Environmental Research Information [distributor] in Cincinnati, OH

Written in English
Published: Downloads: 382
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Subjects:

  • Agricultural wastes -- United States,
  • Recycling (Waste, etc.) -- United States,
  • Oils and fats -- Analysis,
  • Polymers -- United States

Edition Notes

Pyrolytic oils obtained under the same conditions were well mixed and homogenized prior to analysis being made. The viscosity and caloric value of pyrolytic oils were determined according to some physical properties of pyrolytic oils were determined by using the following standard methods; ASTM D and ASTM D Elemental analysis (C, H, and. Overview WRI’s Asphalt and Petroleum Technology (APT) group is a leader in asphalt, petroleum, coal and hydrocarbon research. The group has several decades of experience leading research at the federal level to characterize, diagnose and predict asphalt and heavy oil properties and performance, and thermal processing of heavy oils.   Material. Chitosan is a polymer of β-(1,4)-linked 2-acetamidodeoxy-d-glucopyranose and 2-aminodeoxy-D-glucopyranose. This polycationic biopolymer is generally obtained by alkaline deacetylation of chitin, which is the main component of the exoskeleton of crustaceans [].Chitosan is the sole cationic polysaccharide due to its positive charges (NH 3 +) at acidic pH (pH. Shareable Link. Use the link below to share a full-text version of this article with your friends and colleagues. Learn more.

  Analytical pyrolysis deals with the structural identification and quantitation of pyrolysis products with the ultimate aim of establishing the identity of the original material and the mechanisms of its thermal decomposition. The pyrolytic process is carried out in a pyrolyzer interfaced with analytical instrumentation such as gas chromatography (GC), mass spectrometry (MS), gas chromatography. DETERMINATION OF THE COMPOSITION OF PYROLYTIC OIL BY LIQUID CHROMATOGRAPHIC METHODS OF ANALYSIS Advisor: Professor Malcolm B. Polk Thesis dated May The various components of the pyrolytic oil were determined by liquid chromatography using a bonded phase CH column. Component identification was conducted at wavelengths of and nm. Although the pyrolytic oils had reasonable calorific value, they contained a high amount of nitrogenated and oxygenated compounds. Using waste sludge as a raw material for activated carbon production was also investigated. For this purpose, activated carbons were produced from waste sludge by physical and chemical activation methods. @article{osti_, title = {Reactivity of pyrolysis oils and model compounds under phenol formaldehyde resin synthesis conditions}, author = {Wang, Xiangming and Davis, M F and Myers, M D and Kelley, S S}, abstractNote = {Fast pyrolysis of biomass produces an oil, that can be upgraded to a phenolic and neutrals (PN) fraction suitable for incorporation into phenol formaldehyde resins.

@article{osti_, title = {Pyrolytic oil of banana (Musa spp.) pseudo-stem via fast process}, author = {Abdullah, Nurhayati and Sulaiman, Fauziah and Taib, Rahmad Mohd and Miskam, Muhamad Azman}, abstractNote = {This study was an attempt to produce bio-oil from banana pseudo-stem, a waste of banana cultivation, using fast pyrolysis technology. @article{osti_, title = {Pyrolytic incineration destroys toxic wastes, recovers energy}, author = {Williams, Jr, I M}, abstractNote = {Described is how pyrolytic incineration is effective in many hazardous waste disposal applications. Pyrolysis produces gaseous hydrocarbon fuels and a solid carbonaceous residue from the waste. These fuels can be used for their energy value, or simply. This test method evaluates the oxidation stability of engine oils for gasoline automotive engines. This test, run at °C, utilizes a high pressure reactor pressurized with oxygen along with a metal catalyst package, a fuel catalyst, and water in a partial simulation of the conditions to which an oil may be subjected in a gasoline combustion engine.

Development of methods for the stabilization of pyrolytic oils by M. B Polk Download PDF EPUB FB2

Get this from a library. Development of methods for the stabilization of pyrolytic oils. [M B Polk; M Phingbodhippakkiya; Municipal Environmental Research Laboratory.]. United States Environmental Protection Agency Municipal Environmental Research Laboratory Cincinnati OH Research and Development EPA/S Nov.

Project Summary Development of Methods for the Stabilization of Pyrolytic Oils M. Polk and M. Phingbodhippakkiya In this study, capillary gas chroma- tographic, liquid chromatographic, and gas chromatographic mass spectro.

EPA/ August PYROLYTIC OILS - CHARACTERIZATION AND DATA DEVELOPMENT FOR CONTINUOUS PROCESSING by J. Knight, L. Elston, D. Hurst, and R. Kovac Engineering Experiment Station Georgia Institute of Technology Atlanta, Georgia Grant Nos. R and R Project Officer Charles J.

Rogers Solid and Hazardous Waste. The waste machinery oil was supplied from the Totomak Corporation (Izmir, Turkey). Elemental analysis and higher heating values of the waste machinery oil are given in Table order to avoid replication, waste machinery oil (WMO) and the pyrolytic oils obtained at °C (PO4), at °C (PO6), at °C (PO8) and obtained at °C in the presence of Ni on SiO 2 (PO4-Ni) and HZSM-5 Cited by:   Immediate online access to all issues from Subscription will auto renew : N.

Kudryavtseva, I. Mikhailov, E. Nikonorov, L. Rakova. While reactive chemical methods are appearing as more effective for achieving long-term stability, physical methods can be used for obtaining stability in a simpler way and in a shorter time perspective.

Such methods include, for example, ways of viscosity lowering by solvents or blending and also solid removal of, for example, the char particles. Materials and Methods. Hydrorefined pyrolytic oil (HPO) was obtained by hydrorefining crude pyrolytic oil (CPO) obtained as a result of pyrolysis of unsorted whole car tires, size RR18, more precisely described in [4,10].The hydrogenation process was carried out in the presence of a nickel–molybdenum catalyst (Akzo Nobel) deposited on alumina carrier (NiMo–Al 2 O 3) at the.

Pyrolytic oil yield decreased from % to % with the increasing heating rate from 5 °C/min to 35 °C/min. Pyrolytic oils were characterized and compared with diesel and gasoline. According to this comparison, it was seen that pyrolytic oils show similar fuel properties with the diesel from the point of HHV, density and viscosity.

The possibility of making polyurethane with each fraction was investigated. Here, pyrolytic lignin was used without any further modification.

Different factors influencing the physical and mechanical properties of the polymers were determined. The thermal stability and water absorption of the polyurethane were then assessed. Vispute, Tushar, "Pyrolysis Oils: Characterization, Stability Analysis, and Catalytic Upgrading to Fuels and Chemicals" ().Open Access Dissertations.

One of the most promising methods for a small scale conversion of biomass into liquid fuels is fast. Raw pyrolytic bio-oils: – HZSM-5 and H-Y zeolites: Fixed bed reactor: High silica–alumina ratio is beneficial both for cracking heavy feeds and for improving thermal stability: Vitolo et al.

Catalytic upgrading of pyrolytic oils over HZSM-5 zeolite: behavior of the catalyst when used in repeated upgrading–regenerating cycles. Due to its high total sulphur content and other unfavourable properties, pyrolytic oil obtained as a result of tyres pyrolysis is not suitable for use as motor or heating fuel.

Therefore, pyrolytic oil was hydrorefined. Hydrorefined oil was used as a component of light heating oil. A composition was prepared from 30 wt % hydrorefinate with 70 wt % Ekoterm Plus (a commercial oil).

Unfortunately. There is a little controversy concerning the oxidation stability of natural mineral base oils as determined by the refining method. There is one school of thought that suggests that hydrotreated base stocks have superior oxidation resistance and thermal stability than does solvent-refined base oil.

Biomass is a renewable energy source with great potential. One of the promising ways for the conversion of biomass into more suitable forms of energy is its pyrolysis.

Liquid products of the biomass pyrolysis—pyrolysis oils (or bio-oils)—could be used in the future as biofuel or as feedstock for valuable chemicals. Detailed knowledge about their chemical composition is crucial, as it can.

Pyrolysis of renewable biomass has been developed as a method to produce green fuels and chemicals in response to energy security concerns as well as to alleviate environmental issues incurred with fossil fuel usage.

However, pyrolysis oils still have limited commercial application, mainly because unprocessed oils cannot be readily blended with current petroleum-based transportation fuels. The pyrolytic behavior of several biomass components including cellulose, hemicellulose, lignin, and tannin, from two sources of waste biomass (i.e., pine bark and pine residues) were examined.

Compared to the two aromatic-based components in the biomass, carbohydrates produced much less char but more gas. Surprisingly, tannin produced a significant amount of water-soluble products; further.

@article{osti_, title = {Development of a thermal stability based ranking of hazardous organic compound incinerability}, author = {Taylor, P H and Dellinger, B and Lee, C C}, abstractNote = {It is believed that emissions from full-scale incinerators can often be related to poor microscale mixing of waste and oxygen.

To develop a scientifically defensible ranking of hazardous organic. Carbonyl compounds present in bio-oils are known to be responsible for bio-oil property changes upon storage and during upgrading.

As such, carbonyl content has previously been used as a method of tracking bio-oil aging and condensation reactions with less variability than viscosity measurements.

Given the importance of carbonyls in bio-oils, accurate analytical methods for their. The paper presents the structural features of three kinds of pyrolytic lignin extracted from bio-oil with different methods (WIF, HMM, and LMM).

The pyrolytic lignin samples are characterized by. • Two methods tested, modified from existing methods in literature • Nicolaides: this is the method typically used for bio-oils1 • hours of stirring, titration at room temperature • Faix: lesser known method2, developed at NREL for bio-oils • 2 hours stirring time, titration at 80 ᵒC • Results show that the Nicolaides method.

Earlier thermal efficiency of the pyrolysis oils was compared with diesel, but they demonstrated unwarranted delay in ignition. On the other hand, the quantity, quality and constancy of pyrolysis oil can also be improved by method variables such as heating rate, temperature and retention times.

Type of different reactors (ablative and fixed. The thermal stability of antioxidants in four vegetable oils by heat flux differential scanning calorimetry (DSC) and electron spin resonance spectroscopy (ESR) were studied by Giffrida et al. The sample oils were sunflower oil and high oleic sunflower oil, low trans fatty acid oil and partially hydrogenated palm oil and the studied.

Of several liquid biofuels, this chapter will focus on the discussion for the studies on the utilization of bio-oil, biocrude, and pyrolytic oil in internal combustion engines.

Bio-oil and biocrude. To test the usefulness of NIR methods in characterizing pyrolysis oils and processes, biomass from conifers, Salix, and reed canary grass was milled and pyrolyzed at, and °C.

This book is comprised of nine chapters and begins by discussing the place of flow and flash vacuum pyrolytic methods in organic chemistry. The next chapter gives an account of apparatus and experimental methods, while the remaining chapters focus on pyrolytic reactions that are grouped together according to the nature of the overall process.

1) Development of a reliable and rel evant method to characterize aging. It focuses on the separation behaviour of fast pyrolysis bio-oil, which is a serious problem for any practical. In esterification process, the carboxyl groups in the pyrolytic oil are converted to the corresponding esters to improve the quality of pyrolytic oil in terms of odour, corrosiveness and stability.

Results indicated that the bio-oils were effective against fungal growth. Further studies showed that certain phenolic compounds are responsible for the fungal inhibition (Suzuki et al.Mourant et al. Better understanding and renewed interest in the use of pyrolytic oils for wood preservation has taken place over the last decade.

@article{osti_, title = {Pyrolysis Oil Stabilization: Hot-Gas Filtration; Cooperative Research and Development Final Report, CRADA Number CRD}, author = {Baldwin, Robert M.}, abstractNote = {The hypothesis that was tested in this task was that separation of char, with its associated mineral matter from pyrolysis vapors before condensation, will lead to improved oil quality and.

mineral oils or other bio-oils, like biodiesels Analytical methods including on-line methods have to be tested, developed, and validified Fast analyses needed to the field Guidelines for storage and transportation and MSDS specified for fast pyrolysis oil PyNe Newsletter 30 Guidelines for Transportation, Handling, and Use of Fast.

The density of pyrolytic oils is kg/m 3, the gross calorific value is MJ/kg, the viscosity is mm 2/s, and the condensation point was °C. Read more Article.dietary oils and tocopherol supplementation on cholesterol oxide formation in freeze-dried chicken meat during storage. Journal of Food Lipids3 (1), svEPA United States Environmental Protection Agency Office of Emergency and Remedial Response Washington, DC Office of Research and Development Cincinnati, OH Superfund EPA//S/ October Engineering Bulletin Pyrolysis Treatment Purpose Section (b) of the Comprehensive Environmental Re- sponse, Compensation, and Liability Act (CERCLA) mandates the .