Abstract

Nickel nanoparticles was supported on sawdust carbon via a hydrothermal method followed by calcination and used as a catalyst for heavy crude oil upgrading experiment. The performance of catalyst on catalytic pyrolysis of heavy crude oil was studied by laboratory experiments. The experimental results showed that under the reaction conditions of 350 °C, 30 min and 0.1 wt% catalyst, the viscosity reduction ratio of heavy crude oil was 74.50%, the viscosity can be reduced from 16,000 mPa·s (50 °C) to 4080 mPa·s, and the net efficiency of catalyst was 14.37%. Analysis results suggested that the viscosity reduction of heavy crude oil was caused by the destruction of structure of resin in the process of the catalytic pyrolysis reaction.

摘要

通过水热法将镍纳米颗粒负载在木屑碳上，然后煅烧，并用作重质原油改质实验的催化剂。通过室内实验研究了催化剂对重质原油催化热解的性能。实验结果表明，在350℃、30min、0.1wt%催化剂的反应条件下，稠油降粘率为74.50%，粘度从16000mPa·s（50℃）降低到4080 mPa·s，催化剂的净效率为14.37%。分析结果表明，重质原油粘度降低是由于催化热解反应过程中树脂结构被破坏所致。