Process development of coke oven gas to methanol integrated with CO2 recycle for satisfactory techno-economic performance
Ji-Long Zhang and
Energy, 2016, vol. 112, issue C, 618-628
A novel process designed for producing methanol from coke oven gas (COG) integrated with CO2 recycle is proposed. In the new system, oxygen replacing air is blown to combustor for assisting combustion of COG and unreacted syngas from methanol synthesis process. The combustion process provides to the heat required in the coking process. The rest COG reacts with the recycled CO2 separated from the exhaust gas to produce syngas for methanol synthesis. The unreacted syngas from methanol synthesis process with low grade energy level is recycled to the combustor. In the whole methanol production process, there is no additional process with respect to supplementary carbon, and the carbon resource only comes from the internal CO2 recycle in the plant. With the aid of techno-economic analysis, the new system presents the energy or exergy saving by 5–10%, the CO2 emission reduction by about 70% and the internal rate of return increase by 5–8%, respectively, in comparison with the traditional COG to methanol process.
Keywords: Coking; Coke oven gas; CO2 recycle; System integration; Methanol (search for similar items in EconPapers)
References: View references in EconPapers View complete reference list from CitEc
Citations View citations in EconPapers (1) Track citations by RSS feed
Downloads: (external link)
Full text for ScienceDirect subscribers only
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:112:y:2016:i:c:p:618-628
Access Statistics for this article
Energy is currently edited by Henrik Lund and Mark J. Kaiser
More articles in Energy from Elsevier
Series data maintained by Dana Niculescu ().