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Thursday, April 16, 2020 | History

2 edition of Removal of HS from geothermal steam by catalytic oxidation process bench scale testing results found in the catalog.

Removal of HS from geothermal steam by catalytic oxidation process bench scale testing results

C. T. Li

Removal of HS from geothermal steam by catalytic oxidation process bench scale testing results

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  • 35 Currently reading

Published by Dept. of Energy, Pacific Northwest Laboratory, for sale by the National Technical Information Service in Richland, Wash, Springfield, Va .
Written in English

    Subjects:
  • Hydrogen sulphide.,
  • Geothermal engineering.

  • Edition Notes

    StatementC. T. Li, R. A. Brouns.
    SeriesPNL ; 2895, PNL (Series) -- 2895.
    ContributionsBrouns, R. A., United States. Dept. of Energy., Pacific Northwest Laboratory.
    The Physical Object
    Pagination121 p. in various pagings :
    Number of Pages121
    ID Numbers
    Open LibraryOL15243579M

    steam inlet conditions of 61 bar and ˚C, the back-pressure steam turbine cogeneration plant perform with energy and exergy efficiency of and and condensing steam turbine plant perform with energy and exergy efficiency of and Datta. et al. [7] was presented work on exergy analysis of a coal-based ther-File Size: KB.   The development of geothermal energy and basin-scale simulations of fluid and heat flow both suffer from uncertain physical rock properties at depth. For the production of geothermal energy, a high risk of failure is associated with this uncertainty. Invoking the usual conservative assumptions as a remedy results in unnecessarily large drilling depths and increased exploration by: In this work, the process kinetics of hydrocarbon steam reforming are investigated in this work. Thirty six experiments were performed to investigate the kinetics of methane and Leakage Testing and Safety Test Determination of Catalytic Stability RESULTS AND DISCUSSION Methane Steam Reforming   In Malaysia, due to abundance of oil palm waste, it is a good candidate to be used as a feedstock for syngas and hydrogen production. Biomass steam gasification is one of the promising methods for syngas production. This work focuses on the steam gasification with in-situ CO2 capture using CaO as absorbent materials for hydrogen production from palm oil empty fruit bunch (EFB).Cited by: 1.

    Continue step 5 until pH remains at 1 or 2 for minutes or more, depending on scale build-up. The system is then as clean as it will be with the current cleaning solution. Neutralize the cleaning solution to a pH of with Chardon’s BD-6 by adding it to the vessel and circulating the mixture for a few minutes.


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Removal of HS from geothermal steam by catalytic oxidation process bench scale testing results by C. T. Li Download PDF EPUB FB2

Get this from a library. Removal of H₂S from geothermal steam by catalytic oxidation process bench scale testing results. [C T Li; R A Brouns; United States. A method for scavenging hydrogen sulfide from geothermal steam in a condenser under vacuum.

A fine curtain of atomized acrolein-water droplets may be sprayed into geothermal steam condensers in an amount of approximately molar ratio of acrolein to H 2 S based on hydrogen sulfide in the incoming steam from the turbine.

The range being approximately ppm to ppm of by: 5. Catalytic partial oxidation (CPO) reactions of methane in the presence of steam (low temperature CPO, LTCPO) over a noble metal catalyst were investigated.

A quasi-homogeneous one-dimensional model was developed in order to model a lab-scale fixed-bed reactor to produce by: Corrosion testing was conducted in a superheated geothermal steam from the IDDP-1 well in Iceland at °C for days. Severe Removal of HS from geothermal steam by catalytic oxidation process bench scale testing results book scaling occurred in the test.

for methane conversions as high as 80% on the SRM process, with 72% in hydrogen yield; on the other hand, for the ATR process, 30% of methane conversion was obtained.

@article{osti_, title = {High-temperature steam oxidation testing of select advanced replacement alloys for potential core internals}, author = {Tan, Lizhen and Pint, Bruce A.}, abstractNote = {Coupons from a total of fourteen commercial and custom fabricated alloys were exposed to 1 bar full steam with ~10 ppb oxygen content at and °C.

Figure 3 shows the results of Eq. 1 for temperatures between and K and for the spectral ranges considered herein as well as by Wesson et al. [6] and Boulet et al.

[8]. and the pH is The maximum COD removal is (%) for fentonʼs oxidation process and for photo-Fenton process giving maximum COD removal (%) at pH 3, Fe 2+ gl-1, H 2 O 2 30gl-1 and time 2h.

All experiments were performed at ambient temperature followed by precipitation of chromium with NaOH at pHstirring h, settling 2h. This test method can be used to estimate the relative oxidation stability of petroleum-base oils. It should be recognized that correlation between results of this test and the oxidation stability in use can vary markedly with service conditions and with various oils.

Study of Mercury Oxidation by a Selective Catalytic Reduction Catalyst in a Pilot-Scale Slipstream Reactor at a Utility Boiler and the American Society for Testing and Materials certified Ontario hydro method was is shown to have an enhanced impact on catalytic oxidation of Hg0 by chlorine species in flue gas Thus, the.

Steam and Air Gasification Overview Grabowski () defines gasification as thermal conversion of organic materials at elevated temperatures in the presence of steam into smaller constituent gases. Organic sources used in gasification are numerous and vary extensively in composition; however, the main component in gasifying fuels is : Brett Christensen.

During the process of the geothermal fluid moving along production well, in pipelines and equipment of fluid geothermal steam that is balanced with it or, on the contrary, transition of saturated steam admixtures into water first results for impurities distribution in high pressures zone were acquired.

This test rig permits creating. A method for scavenging hydrogen sulfide from geothermal steam in a condenser under vacuum. A fine curtain of atomized acrolein-water droplets may be sprayed into geothermal steam condensers in an amount of approximately molar ratio of acrolein to H 2 S based on hydrogen sulfide in the incoming steam from the turbine.

The range being approximately ppm to ppm of sulfide. Therefore requirements to geothermal steam quality must be as strict as in traditional heat power engineering. During process of the geothermal fluid moving along production well, in pipelines and equipment of fluid collection and disposal system, during separation process as well as steam.

Glycerol steam reforming is a more exergonic reaction than the pyrolysis decomposition one, particularly at mid to lower temperatures, as can be seen in Fig. This suggests that the presence of water enhances a gasification process occurring at gradually increased temperature, as in the case of countercurrent heat by: 7.

@article{osti_, title = {State-of-the-art hydrogen sulfide control for geothermal energy systems: }, author = {Stephens, F B and Hill, J H and Phelps, Jr, P L}, abstractNote = {Existing state-of-the-art technologies for removal of hydrogen sulfide are discussed along with a comparative assessment of their efficiencies, reliabilities and by: 5.

Electrochemical oxidation has been studied in a series of bench-scale tests as a physico-chemical oxidation technique for on-site treatment of very complex polluted groundwater containing pharmaceuticals, chlorinated solvents, volatile organic compounds present in.

A fully integrated gasification, reforming, and acid gas removal system that operates at solid biomass feed rates between – kg/h and has online process gas analysis A fully automated 2-inch internal diameter fluidized bed reactor system with a three-stage condensation train used to produce raw and catalytically upgraded fast pyrolysis.

INVESTIGATIONS ON OXIDATION AND CORROSION CHARACTERISTICS OF THE ADVANCED BOILER MATERIALS AT STEAM TEMPERATURES UP TO °C flue gas corrosion, steam oxidation, material testing programme INTRODUCTION The reduction of the CO2 emissions and the saving of the The data can be used for the evaluation of the test results after the.

Methane steam reforming in laboratory scale Farinha, J.F. [email protected] Instituto Superior Técnico, Universidade Técnica de Lisboa Abstract This paper presents experimental results of methane steam reforming, at high temperatures, on a laboratory scale reformer using a sample from a commercial catalyst based on Nickel.

SeveralFile Size: KB. In-Situ Thermal Conduction Heating is a soil remediation process in which heat and vacuum are applied simultaneously to subsurface soils. In the past decade, it has been applied at a number of sites, and the process has been described in several patents and publications.1–11 InFile Size: 2MB.

Table Correlation of Temperature Versus Resistance for a Platinum Resistance Thermometer Table Data Checklist Table Nitrogen Run 1 at "C on Sample #2 from Montiverdi Well #2 Table BET Results of Nitrogen Run 1 at "C on Sample #2 from Montiverdi Well #2 Table Nitrogen Run 1 at "C on Sample #2 of Berea SandstoneCited by: 3.

Process flow and steam gathering system. design process of a geothermal steam gathering system with emphasis on particularities of the geothermal fluid. Two phase flow Steam. liquid removal or better.

Calculated example • The presenter will go through a calculated. As part of the technology development, the process has been scaled up from bench-scale to 1 ton per day (1TPD) pilot-scale. Evaluation of the process at the pilot-scale is one of the critical steps being taken by RTI to address a number of technical challenges facing catalytic pyrolysis and to collect required processing and engineering data to.

FIGURES Number Page 1 Direct steam process 8 2 Flashed steam process 9 3 Binary cycle (flashed steam) process 9 4 Binary cycle (hot water) process 10 5 Total flow process 11 6 Direct heating (closed system) 11 7 Flow diagram of a Stretford process 17 8 Stretford annual cost vs.

steam flow rate 21 9 Stretford annual cost vs. power. Scale forms as the solubilities of the scale-forming salts in water decreases and the tem­ perature and concentrations of the salts in-creases. When feedwater is elevated to boiler water temperature, the solubility of the scale-forming salts is decreased, and solid File Size: 1MB.

• Steam use can be reduced or possibly eliminated. • High olefins yield can be obtained without steam. • Low acetylene and C 4 + yield. • Run length of about 14 – 20 days was estimated to be possible before any decoking is required.

This run length was achieved with no Size: KB. tested in a laboratory scale reactor. An engineering and economic evaluation will be carried out.

During Phase II, promising catalysts will be selected from Phase I and scaled up. These catalysts will be evaluated in a large bench-scale reactor system. An optimum catalyst as determined by the results of bench-scale testing will be. • Define the economics of the process. • Perform a Life Cycle Analysis (LCA) of the process.

The anticipated outcomes of the project were a validated process technology, a range of validated feedstocks, product property and life cycle data, and technical and operating data upon which to base the design of a full-scale by: 2.

Boiler Commissioning & Functional Testing - Commissioning (Cx) any type of HVAC equipment is many different procedures from the beginning of the commissioning process to the end of the process. One of the most important procedures during the Cx process is functional testing.

The functional testing always precedes the final testing where a test of all the combined equipment is done in an. Catalyst Reduction Requires high temperature • fire steam reformer Requires hydrogen • supply H2 or reduce gas • re-circulation or once-through Since little or no steam reforming is taking place, • less heat is required to warm up gas: 50% steam rate, with steam: H2 ratio requires 1/7 fuel of normal operation Extreme danger of local.

ASTM's coal and gas standards are instrumental in the testing and chemical analysis of coal, coke, natural gas and other gaseous fuels, as well as the combustion residues of coal and coke. The materials specifically covered by these standards can be in the form of lump coke, pulverized coal, bituminous coal, coke and coal ash, reformed gas, and.

ranged from bench-scale to MW pilot-scale furnaces. The results of these testswere used to update and/or validate established mechanisms describing flame behavior, steam tube corrosion, slagging and fouling in coal-fired boilers.

The validated mechanisms were then cast into a form amenable for inclusion into computational fluidFile Size: KB. sanded for removal of residues and oxides resulting from the manufacturing and cutting process, w 80, and, and sandpaper.

After the surface preparation the test bodies were identified and weighed in analytical balance, with scale division of mg. The test bodies were produced, prepared and assayed in by: 2. Steam pressure → bar to 15 bar Lancashire boilers: Lancashire is a stationary fire tube, internally fired, horizontal, natural circulation boiler.

It is a commonly used in sugar – mills and textiles industries where along with the power steam and steam for the process work is also Size: 2MB.

(2) Lowering of boiler safety: Due to scale formation, over-heating of boiler is to be done in order to maintain a constant supply of steam. The over-heating of the boiler tube makes the boiler material softer and weaker and this causes distortion of boiler tube and makes the boiler unsafe to bear the pressure of the steam, especially in high-pressure boilers.

Heat Recovery Steam Systems for Engines, Incinerators, Thermal Oxidizers and Catalytic Converters Anticipated Results. Tremendous fuel savings typically pay for installed equipment within 1 to 3 years of average use.

Heat Sink Types: supplemental steam demand and/or primary steam source for steam heating or process steam. Results of chemical kinetics modeling in methane subjected to the microwave plasma at atmospheric pressure are presented in this paper. The reaction mechanism is based on the methane oxidation model without reactions involving nitrogen and oxygen.

For the numerical calculations 0D and 1D models were created. 0D model uses Calorimetric Bomb Reactor whereas 1D model is Cited by:   The objective of this study was to develop a novel and low-cost method to synthesis nanosized MgO, CaO and NiO catalysts to breakdown toluene, a model tar compound for tar removal in biomass catalytic gasification.

Catalysts were tested in fixed-bed reactor for biomass tar steam reforming, toluene was chosen as a tar model compound. Operating and maintaining a reliable steam system is vital to chemical processing plants and can have significant cost impact on a plant's annual budget.

Typical profit drainers in operating and maintaining a steam system include excessive fuel cost, inefficient steam generation, less-than-optimal steam utlization and poor condensate recovery. Ensuring adequate supply of steam often results. A bench-scale high-pressure fluidized-bed reactor designed for pyrolysis, gasification, and combustion experiments (up to °C, 40 bar) has been constructed and commissioned.

The system is intended to generate fuel reactivity data rapidly and cheaply, under realistic experimental conditions; it is relatively simple to construct and capable of operation by a single researcher.Standard Test Method for Oxidation Stability of Steam Turbine Oils by Rotating Pressure Vessel1 This standard is issued under the fixed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last Size: KB.The scale grown under flowing steam at room temperature has a compact outer layer of magnetite with an inner spinel layer that contains a plane of massive defects.

In contrast the scale grown under high-pressure static steam is compact throughout although there is some evidence of roughening at the surface of the outer scale.