Laboratory scale studies of Pd/γ-Al2O3 sorbents for the removal of trace contaminants from coal-derived fuel gas at elevated temperatures

Rupp, Erik C.; Granite, Evan J.; Stanko, Dennis C.

doi:10.1016/j.fuel.2010.12.013

Cited by 40 publications

(21 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because sulfur tolerance has an inverse relationship to the size of the particles, Pd/Al 2 O 3 is expected to have the best resistance to H 2 S poisoning. Such results confirm no "breakthrough" of hydrogen selenide within this experimental time-frame [150].…”

Section: Catalyst Poisonssupporting

confidence: 78%

Discussions of Fluorescence in Selenium Chemistry: Recently Reported Probes, Particles, and a Clearer Biological Knowledge

et al. 2021

View full text Add to dashboard Cite

In this review from literature appearing over about the past 5 years, we focus on selected selenide reports and related chemistry; we aimed for a digestible, relevant, review intended to be usefully interconnected within the realm of fluorescence and selenium chemistry. Tellurium is mentioned where relevant. Topics include selenium in physics and surfaces, nanoscience, sensing and fluorescence, quantum dots and nanoparticles, Au and oxide nanoparticles quantum dot based, coatings and catalyst poisons, thin film, and aspects of solar energy conversion. Chemosensing is covered, whether small molecule or nanoparticle based, relating to metal ion analytes, H2S, as well as analyte sulfane (biothiols—including glutathione). We cover recent reports of probing and fluorescence when they deal with redox biology aspects. Selenium in therapeutics, medicinal chemistry and skeleton cores is covered. Selenium serves as a constituent for some small molecule sensors and probes. Typically, the selenium is part of the reactive, or active site of the probe; in other cases, it is featured as the analyte, either as a reduced or oxidized form of selenium. Free radicals and ROS are also mentioned; aggregation strategies are treated in some places. Also, the relationship between reduced selenium and oxidized selenium is developed.

show abstract

Section: Catalyst Poisonssupporting

confidence: 78%

Discussions of Fluorescence in Selenium Chemistry: Recently Reported Probes, Particles, and a Clearer Biological Knowledge

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Granite et al . have reported that the supported noble metals, especially palladium, can be used for capturing mercury, arsenic, selenium and phosphorus from an experimental simulated fuel gases in an elevated temperatures range between 200 and 400 °C 20 – 24 .…”

Section: Introductionmentioning

confidence: 99%

A Magnetically Recoverable Fe3O4–NH2–Pd Sorbent for Capture of Mercury from Coal Derived Fuel Gas

Han

Chen

et al. 2017

Sci Rep

View full text Add to dashboard Cite

A sort of magnetical material named Fe3O4–NH2–Pd was prepared by loading varying amounts of immobilizing Pd on the surface of the magnetic Fe3O4–NH2 microspheres. This magnetical material was used firstly for capturing Hg° from coal derived fuel gas based on its recoverability. The experimental results showed that the loading Pd on the amine-functionalized magnetite nanoparticles can greatly improve the efficiency of removing Hg° at a high temperature range between 200 and 300 °C. The magnetic Fe3O4–NH2–Pd sorbent with 5% Pd loaded exhibited significantly high activity and stability in capturing Hg°, affording over 93% capture efficiency at 200 °C for more than 8 hrs. Compared to the Fe3O4–NH2 sorbent that converted the Hg° as HgS, this Fe3O4–NH2–Pd sorbent can remove the Hg° by forming Pd-Hg amalgam and HgS. In addition, the experimental tests indicated that the as-synthesized Fe3O4–NH2–Pd sorbent still showed stable magnetic properties after two regeneration cycles in removing Hg°, which provided the opportunity for preparing a recyclable sorbent which can be easily separated and recovered for Hg° removal.

show abstract

“…Although numerous materials have been reported as adsorbents for the effective removal of AsH 3 , high operating temperatures are typically required. [12][13][14][15][16][17][18] For instance, Poulston et al have reported that Pd can be used to modify Al 2 O 3 for the adsorption of AsH 3 from simulated ue gas at temperatures between 204 C and 288 C. 19 Jiang et al found that activated carbon modied with sulfonated cobalt phthalocyanine (CoPcS) and Cu(NO 3 ) 2 was able to adsorb AsH 3 efficiently, and the AsH 3 adsorption capacity was 35.7 mg g À1 adsorbent at 60 C and a 4% oxygen content. 20 However, some shortcomings with the present activated carbons have been identied including their thermal instability.…”

Section: 11mentioning

confidence: 99%

Arsine adsorption in copper-exchanged zeolite under low temperature and micro-oxygen conditions

et al. 2017

View full text Add to dashboard Cite

Arsenic pollution is a worldwide issue. Nearly all arsenic is converted to arsine (AsH 3 ) under the reducing atmosphere required for the gasification process. Growing industrialization has increased AsH 3 emissions, for example, the ore smelting process leads to AsH 3 emissions. The conditions used in the ore smelting process are low temperature and micro-oxygen. A series of Hb zeolites loaded on different metal oxides has been prepared using an impregnation method and tested for adsorption of arsine (AsH 3 ) under low temperature and micro-oxygen conditions. Based on the results obtained from the adsorbent optimization experiments, Hb zeolite modified with Cu(NO 3 ) 2 (denoted as Cu/Hb) was found to possess a significantly enhanced adsorption removal ability towards arsine. The effects of the impregnation concentration, calcination temperature, reaction temperature, and oxygen content on the AsH 3 removal process were investigated. The results indicate that adsorbents with 0.2 mol L À1 Cu(NO 3 ) 2 after calcination at 400 C have superior activity for AsH 3 removal. In addition, a breakthrough capacity of 43.7 mg AsH 3 /g adsorbent at 60 C as well as 1.0% oxygen was observed with Cu/Hb for the AsH 3 adsorption process. The structure and surface properties of the Hb zeolite samples were characterized by N 2 -BET (N 2 adsorption/desorption), XRD (X-ray powder diffraction), XPS (X-ray photoelectron spectroscopy), and FTIR (Fourier transform infrared) spectroscopy. It is feasible that the exhausted Cu/Hb can be regenerated by thermal desorption, and the adsorbents can be recycled at least two times with little capacity loss.

show abstract

Laboratory scale studies of Pd/γ-Al2O3 sorbents for the removal of trace contaminants from coal-derived fuel gas at elevated temperatures

Cited by 40 publications

References 22 publications

Discussions of Fluorescence in Selenium Chemistry: Recently Reported Probes, Particles, and a Clearer Biological Knowledge

Discussions of Fluorescence in Selenium Chemistry: Recently Reported Probes, Particles, and a Clearer Biological Knowledge

A Magnetically Recoverable Fe3O4–NH2–Pd Sorbent for Capture of Mercury from Coal Derived Fuel Gas

Arsine adsorption in copper-exchanged zeolite under low temperature and micro-oxygen conditions

Contact Info

Product

Resources

About