Steam/oxygen gasification system for the production of clean syngas from switchgrass
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Broer, Karl M.↗
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A study on initiation of ash agglomeration in fluidized bed gasification systems
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Khadilkar, Aditi B.↗
Biomass char particle surface area and porosity dynamics during gasification
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Wu, Ruochen (ORCID:0000000295616865)↗
Effect of spent fluid catalytic cracking (FCC) catalyst on syngas production from pyrolysis and CO2-assisted gasification of waste tires
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Mavukwana, Athi-enkosi↗
Source apportionment of carbon during gasification of coal–biomass blends using stable carbon isotope analysis
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Bhagavatula, Abhijit (ORCID:0000000268060240)↗
Catalytic gasification of a Powder River Basin coal with CO2 and H2O mixtures
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Zhang, Fan↗
Improvement and maintenance of biochar catalytic activity for in-situ biomass tar reforming during pyrolysis and H2O/CO2 gasification
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Feng, Dongdong (ORCID:0000000244530287)↗
Performance of hydrophobic physical solvents for pre-combustion CO 2 capture at a pilot scale coal gasification facility
Here, in this paper, we present the first pilot plant data for hydrophobic physical solvents for CO 2 and H 2 S removal from coal-derived H 2 -rich syngas. Four physical solvents were tested under pre-combustion CO 2 capture conditions at bench scale and pilot plant scale: one baseline hydrophilic solvent and three hydrophobic solvents. The solvents were: (1) polyethylene-glycol-dimethyl ether (PEGDME), a hydrophilic solvent analog for the commercial process Selexol, (2) tributyl- phosphate (TBP), a commercially available hydrophobic solvent, (3) polyethylene glycol-poly(dimethylsiloxane) (PEG-PDMS-3), and (4) diethyl sebacate (CASSH-1), a novel, computationally screened hydrophobic solvent developed by the National Energy Technology Laboratory (NETL). All solvents were studied under pure gas (CO 2 /N 2 /H 2 /CH 4 ) equilibrium conditions at NETL followed by pilot plant testing with syngas at the University of North Dakota Energy & Environmental Research Center (UND EERC). Long term performance of CASSH-1 and PEDGME was then assessed with results compared to process simulation predictions. Within experimental uncertainties, all solvents showed comparable CO 2 absorption performance at above room temperature operation while the hydrophobic solvents had limited water uptake and low vapor pressure, which alleviates concerns related to corrosion, water absorption, and solvent loss to evaporation. These results indicate low viscosity, low vapor pressure hydrophobic solvents are a promising option for lower cost CO 2 capture from high pressure syngas applications.
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CH↗