Abstract
Steam methane reforming (SMR) process is regarded as a viable option to satisfy the growing demand for hydrogen, mainly because of its capability for the mass production of hydrogen and the maturity of the technology. In this study, an economically optimal process configuration of SMR is proposed by investigating six scenarios with different design and operating conditions, including CO2 emission permits and CO2 capture and sale. Of the six scenarios, the process configuration involving CO2 capture and sale is the most economical, with an H2 production cost of $1.80/kg-H2. A wide range of economic analyses is performed to identify the tradeoffs and cost drivers of the SMR process in the economically optimal scenario. Depending on the CO2 selling price and the CO2 capture cost, the economic feasibility of the SMR-based H2 production process can be further improved.
Highlights
Energy demand has steadily increased with the growing global economy [1]
The from heating requirement of the reformer is satisfied byreformer the heat(stream released the comrouted to the water–gas shift (WGS) reactor (R102) where CO and steam are converted to additional H2 and bustion of the tail gas
Detailed analysis on the use of CO2 in Carbon capture and utilization (CCU) and carbon capture and fixation (CCF) appeared to be beyond the scope of this work, we left it for later analysis
Summary
Energy demand has steadily increased with the growing global economy [1]. Currently, energy generation systems rely heavily on fossil fuels, which lead to global warming, mainly due to the accumulation of CO2 in the atmosphere [2]. Water electrolysis uses electricity generated from cluding emission allowances and carbon capture a renewable resources such as wind and solar energy to produce hydrogen [15]. This method study is an capital optimal has environmental advantages,to butpropose because of its high cost forprocess construction, configura it leads to high hydrogen production costs and has limited capacity compared to that of industrial gen production system from an economic point of view, con hydrogen production [16]. No research has been conducted yet to investigate the economic feasibility of overall hydrogen production using SMR under a variety of operating and design conditions, Appl.
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