I I

Western Europe

Asia & North

Australia America

Africa & Middle East

Eastern Europe & FSU

Central & South America

FIGURE 5-24. Distribution of gasification projects by geographic region. (From SFA Pacific, Inc., and U.S. DOE, Gasification: Worldwide Use and Acceptance, Office of Fossil Energy, U.S. Department of Energy, Washington, D.C., January 2000.)

when in operation, will be more than 15,000 million scf (or 4500 billion Btu) of syngas per day. Figure 5-24 shows the distribution of gasifier projects by geographic region. A summary of the survey that includes the number of gasifiers, applications (chemicals, gaseous fuels, and power), and production by country is provided in Appendix D [46].

Historically, syngas from gasification has been used primarily as feedstock for the production of chemicals. In 1989, chemical production accounted for ~50% of syngas use worldwide; however, this figure is changing as more power generation projects are being constructed and planned [46]. For new capacity added between 1990 and 1999, the power-to-chemical syngas volume ratio was ~1.4:1. The post-2000 ratio is 3:1 in favor of power generation, and by 2005 power production is projected to be nearly that of chemical production—approximately 5300 million scf per day. Fuels and gases are projected to be approximately 2800 and 1400 million scf per day, respectively. The distribution of gasification applications is illustrated in Figure 5-25 on a megawatt thermal (MWth) syngas basis.

Coal and petroleum-based materials provide the majority of feedstocks for world gasification capacity, which is projected to rise to about 90% of the total capacity. In 1999, coal and petroleum feedstocks accounted for 4900 and 3200 scf per day synfuel production, respectively, which is projected to increase to approximately 6700 scf per day synfuel production for each feedstock type by 2005 [46]. This is illustrated in Figure 5-26 on an MWth syngas basis [45].

0 0

Post a comment