Physico-Chemical Structure and Gasification Performance of Co-Pyrolytic Char Produced by the Pyrolysis of Polyvinyl Chloride Blends with Two Rank Coals.

Co-pyrolysis of waste plastics and coal has been considered to be an environmentally friendly and scalable waste treatment technology. This study investigated the influence of polyvinyl chloride (PVC) on the physico-chemical structure and gasification performance of co-pyrolytic char with lignite (PZ) and bituminous (SM) coal. The structure characteristics were explored by applying an X-ray diffractometer and a specific surface area analyzer.

Synthesis of -Heteroarenemethyl Esters via C-C Bond Cleavage of Acyl Cyanides Under Transition Metal-Free Conditions.

A practical method to synthesize -heteroaryl esters from -heteroaryl methanols with acyl cyanides C-C bond cleavage without using any transition metal is demonstrated here. The use of NaCO/15-crown-5 couple enables access to a series of -heteroaryl esters in high efficiency. This protocol is operationally simple and highly environmentally benign producing only cyanides as byproducts.