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    • 2. 发明授权
    • High density carbon from coal
    • 来自煤的高密度碳
    • US07824645B2
    • 2010-11-02
    • US11039775
    • 2005-01-20
    • Dwayne R. MorganRick D. Lucas
    • Dwayne R. MorganRick D. Lucas
    • C01B31/00C01B31/02C01B31/04C09C1/56C10L5/00
    • C01B32/05
    • A high density carbon material produced from coal is described. The carbon material may have a density ranging from about 1.0 g/cc to about 1.6 g/cc and may have a crush strength of up to about 20,000 psi. The high density carbon material is produced by slowly heating comminuted swelling bituminous coal particles under pressures of 400 psi to about 500 psi to a first temperature at about the initial plastic temperature of the coal. The material is held at this temperature for a period of time sufficient to provide for a uniform temperature throughout the coal. The material is then heated to a second temperature for a period of time sufficient to provide for the coal achieving an essentially uniform temperature. The resulting product is a three-dimensional, self-supporting carbon that has a substantially continuous carbon matrix defining grain boundaries within the carbon matrix. The characteristics of the carbon material may be altered by further heating to carbonize or graphitize the high density carbon material.
    • 描述了由煤生产的高密度碳材料。 碳材料的密度可以为约1.0g / cc至约1.6g / cc,并且可以具有高达约20,000psi的压碎强度。 高密度碳材料是通过在大约在煤的初始塑性温度下在400psi至约500psi的压力下缓慢加热粉碎的膨胀的沥青煤颗粒至第一温度来制备的。 该材料在该温度下保持足以在整个煤中提供均匀温度的时间。 然后将材料加热至第二温度一段足以使煤达到基本上均匀的温度的时间。 所得产物是三维的自支撑碳,其具有在碳基体内限定晶界的基本上连续的碳基质。 可以通过进一步加热来改变碳材料的特性以碳化或石墨化高密度碳材料。