PROSTITUTING THE PULPIT? THE NEGOTIATED AUTHORITY OF EIGHTEENTH-CENTURY NEW ENGLAND CLERGY
OF DISSERTATION
The Issue of Paper Money in the American Colonies, 1720–1774
Every generation has interpreted the monetary experience of the colonies in the light of its own problems. The Jacksonian period produced the interpretations of Gouge just as the silver controversy of the 1890's produced the work of Bullock and Davis. The reaction to the financial fundamentalism of the 1890's came largely from the work of R. A. Lester and the unpublished but celebrated work of L. Brock in the late thirties and early forties, heavily influenced by the experience of the depression. From the latter two, a new orthodoxy has emerged among American historians, under the authority of E. James Ferguson, whose important recent study, The Power of the Purse, defends the paper money currencies of the colonies by a well-reasoned appeal to the modern fiscal practice of financing war by inflation.
Hydrogen-rich gas production from biomass air and oxygen/steam gasification in a downdraft gasifier
Biomass gasification is an important method to obtain renewable hydrogen. However, this technology still stagnates in a laboratory scale because of its high-energy consumption. In order to get maximum hydrogen yield and decrease energy consumption, this study applies a self-heated downdraft gasifier as the reactor and uses char as the catalyst to study the characteristics of hydrogen production from biomass gasification. Air and oxygen/steam are utilized as the gasifying agents. The experimental results indicate that compared to biomass air gasification, biomass oxygen/steam gasification improves hydrogen yield depending on the volume of downdraft gasifier, and also nearly doubles the heating value of fuel gas. The maximum lower heating value of fuel gas reaches 11.11MJ/Nm3 for biomass oxygen/steam gasification. Over the ranges of operating conditions examined, the maximum hydrogen yield reaches 45.16gH2/kg biomass. For biomass oxygen/steam gasification, the content of H2 and CO reaches 63.27–72.56%, while the content of H2 and CO gets to 52.19–63.31% for biomass air gasification. The ratio of H2/CO for biomass oxygen/steam gasification reaches 0.70–0.90, which is lower than that of biomass air gasification, 1.06–1.27. The experimental and comparison results prove that biomass oxygen/steam gasification in a downdraft gasifier is an effective, relatively low energy consumption technology for hydrogen-rich gas production.