TY - GEN
T1 - Biomass-derived hydrogen for PEM fuel cell performance
AU - Tawfik, Hazem
AU - Anjom, Mouzhgun
AU - Halada, Gary P.
AU - White, Henry
AU - Hung, Yue
AU - El-Khatib, K.
AU - Mahajan, Devinder
PY - 2006
Y1 - 2006
N2 - Biomass-derived H2, being CO2-net neutral, is a choice fuel for PEM fuel cells. The thermochemical processing of biomass may involve gasification that takes place at 800-1000°C to yield H2-rich gas. The synthetic hydrogen produced via this route contains a variety of impurities such as N2, CO2, CO, NH3, H2S, mercaptans, halogenated compounds, hydrocarbons, formaldehyde, formic acid, and trace metals. Some of these impurities present in both the H2 fuel stream and the air intake to a fuel cell negatively impact the fuel cell's performance and durability. The impurity induced poisoning of the platinum catalyst involves a mechanism of blocking active surface sites. We are investigating a catalyst system to remove CO, one of the major impurities, by pretreatment of impure H2 produced from a gasifier. The paper will focus on results of catalyst formulation and its operating conditions and testing of the purified gas in a fuel cell. A successful development of such a system will help improve the economics of PEM fuel cells and promote H2 synthesis from renewable energy sources.
AB - Biomass-derived H2, being CO2-net neutral, is a choice fuel for PEM fuel cells. The thermochemical processing of biomass may involve gasification that takes place at 800-1000°C to yield H2-rich gas. The synthetic hydrogen produced via this route contains a variety of impurities such as N2, CO2, CO, NH3, H2S, mercaptans, halogenated compounds, hydrocarbons, formaldehyde, formic acid, and trace metals. Some of these impurities present in both the H2 fuel stream and the air intake to a fuel cell negatively impact the fuel cell's performance and durability. The impurity induced poisoning of the platinum catalyst involves a mechanism of blocking active surface sites. We are investigating a catalyst system to remove CO, one of the major impurities, by pretreatment of impure H2 produced from a gasifier. The paper will focus on results of catalyst formulation and its operating conditions and testing of the purified gas in a fuel cell. A successful development of such a system will help improve the economics of PEM fuel cells and promote H2 synthesis from renewable energy sources.
UR - https://www.scopus.com/pages/publications/34047256846
M3 - Conference contribution
SN - 0841274266
SN - 9780841274266
T3 - ACS National Meeting Book of Abstracts
BT - Abstracts of Papers - 232nd American Chemical Society Meeting and Exposition
T2 - 232nd American Chemical Society Meeting and Exposition
Y2 - 10 September 2006 through 14 September 2006
ER -