Catalyst and process development for hydrogen preparation from future fuel cell feedstocks. Quarterly report, April 1-June 30, 1980. [Pt/Pd]

Technical Report · Tue Jul 01 04:00:00 EDT 1980

DOI:https://doi.org/10.2172/5086291· OSTI ID:5086291

Yarrington, R M; Feins, I R; Hwang, H S

Phase II of the contract, which involved catalyst preparation and evaluation, was nearly completed this quarter. Phase III, which calls for the design and construction of a fuel processor, was started. During the quarter, four types of tests were run on the small scale catalyst screening unit. The operating line for coke-free operations was found to be approximately between 0.41 to 0.44 O/sub 2//C level. Screening at lower O/sub 2//C levels led to problems with plugging. In other tests, increased severity for screening steam reforming catalysts was obtained by doubling the space velocity. Another series of tests were run to determine the gas composition from the catalytic partial oxidation (CPO) section and to evaluate two CPO catalysts. In the other series of tests, catalysts were aged for about 20 hours using a propane, steam, and air mixture before testing with No. 2 oil for another five hours. This latter test has been used to study Pt/Rh catalysts made with various supports. Differences were readily determined for Pt/Rh supported on alpha alumina and Pt/Rh supported on stabilized alumina. This test method will find continued use in evaluating metal-support interactions. Several samples must be evaluated by this method before aging runs are made in the larger unit. After leaching alumina from a used Pt/Rh catalyst, the x-ray diffraction pattern showed the presence of a Pt-Rh alloy in the metal residue. Experiments were run to show that the alloy was formed in the reactor during testing and not during catalyst preparation. A larger version of the ATR reactor has been designed and major components are on order. Completion of the construction phase is scheduled for the next quarter.

• Research Organization: Engelhard Minerals and Chemicals Corp., Edison, NJ (USA). Engelhard Industries Div.
• DOE Contract Number: AC02-78ET15383
• OSTI ID: 5086291
• Report Number(s): DOE/ET/15383-22
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
080103* -- Hydrogen-- Production-- Steam Reformer Processes
080109 -- Hydrogen-- Production-- Partial Oxidation Processes
30 DIRECT ENERGY CONVERSION
300503 -- Fuel Cells-- Materials
Components
& Auxiliaries
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
DIRECT ENERGY CONVERTERS
ELECTROCHEMICAL CELLS
ELEMENTS
EVALUATION
FUEL CELLS
HYDROGEN FUEL CELLS
HYDROGEN PRODUCTION
METALS
PARTIAL OXIDATION PROCESSES
PLATINUM
PLATINUM METALS
REFORMER PROCESSES
REFRACTORY METALS
RESEARCH PROGRAMS
RHODIUM
SCREENING
STEAM REFORMER PROCESSES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS