The production of liquids from coal gives rise to complex intermediates which require detailed analysis to understand the processes occurring and to make effective use of the products. Analysis has hitherto been based on structural parameters from NMR methods (1) to give the average characteristics of the sample, supplemented by molecular information from GC and GC/MS. The gas chromatographic a...

Co-pyrolysis of Shenmu coal (SM) and cotton stalk (CS) at different blend ratios were carried out in a tubular furnace. The pyrolysis temperature was up to 600 °C at 5 °C/min and kept for 15 min. The results indicated that there was an interactive effect between SM and CS, which increased the tar yield. Moreover, the content of light components in co-pyrolysis tar from all CS/SM blend ratios wa...

Abstract In this paper, the effect of asphalt deposition inhibitors coal tar, bromohexadecylpyridine and sodium oleate on viscosity reduction asphaltene crude oil was investigated. The results show that tar has a better inhibitory asphaltenes in oil. is best when addition amount 0.5%. Compared with blank, content reduced from 24.47% to 9.42%. cationic surfactant have good synergistic effect, by...

As value-based reimbursement and accountable-care models drive us into an era of cost-containment and care-management strategies, the P&T committee must reinvent itself.