Coal Plasticity Mechanism: Inferences from Liquefaction Studies

摘要: Publisher Summary Coal liquefaction experiments indicate that the formation of low molecular weight products from high coal proceeds via thermal rupture relatively weak chemical bonds followed in optimum case by stabilization resulting free radicals hydrogen atoms are abstracted hydroaromatic structures. In particular, hydrogens on partially saturated, multiring, and organic molecules vehicle readily this process. If abstractable is not available, some pyrolytically formed either recombine or attack adjacent molecules, forming stable, higher materials called repolymerization. Thermally promoted plasticity vitrinite bituminous coals involves these same reactions; however, while slurrying major source transferable liquefaction, itself such inert-atmosphere pyrolysis. This chapter discusses three properties coal, which necessary sufficient for plastic development: (1) lamellae-bridging structures, (2) an indigenous supply hydrogen, (3) intrinsic capability micelles lamellae to become mobile independently quantitatively significant bond rupture.