高转化率与低碳排放重油加工路线的研究

STUDY ON HIGH CONVERSION AND LOW CARBON EMISSION PROCESSING ROUTES OF HEAVY OIL

通过对几种加氢方案(VRDS方案、浆态床方案、沸腾床方案)、脱碳方案(焦化方案)以及组合方案(焦化方案+沸腾床方案)进行系统研究,考察了重油加工路线对油品收率和碳排放的影响,并进行了效益对比分析。结果表明,加氢路线的轻油收率高,碳排放高。无论是否征收碳税,加氢路线的效益均高于脱碳路线的效益,但投资较高。在3种加氢路线中,浆态床方案的轻油收率最高,碳排放居中,投资较少,效益最好;沸腾床方案的轻油收率最低,投资最高,效益最差;VRDS方案的碳排放最高,轻油收率居中,投资和效益也居中。焦化方案和沸腾床方案组合方案轻油收率和效益明显提高。

This paper mainly discussed the impact of heavy oil processing routes on light oil yield and carbon emission, and analyzed their economic benefits in detail. Compared with decarbonization route, hydrogenation route not only had high light oil yield with high carbon emissions, but also had high benefits whether or not carbon tax levying. In the three hydrogenation route, slurry-bed case had the best economic benefit with the highest light oil yield, middle level carbon emission and the least investment. Fluidized-bed case had the worst economic benefit with least light oil yield and highest investment. VRDS case had the highest carbon emission, and its investment and benefit were the second. Compared with the fluidized-bed case and coking case, the light oil yield and the economic benefit were improved significantly in the combined case.