Simulation of Methanol and Urea Production from Catalytic Conversion of Steel Mill Gases

Within the Carbon2Chem® project, new processes have been developed to valorize steel mill gases by producing methanol. This article compares the global warming impact of integrated steel and methanol production to the stand‐alone production of steel and methanol. In order to generate mass and energy balances of the cross‐industrial network, several simulation approaches were conducted, and two power sources investigated. In the case of a power mix in 2030, the conventional production of steel and methanol is favorable, and in the case of wind power, the integrated production of steel and methanol shows greater benefit. If an electricity mix with a carbon intensity of less than 0.23 kgCO2‐eq.kWh−1 electricity is used, the integrated production of steel and methanol has a lower global warming impact than stand‐alone steel and methanol production.

Section: Methodological Approachmentioning

confidence: 99%

Life Cycle Assessment of Steel Mill Gas‐Based Methanol Production within the Carbon2Chem® Project

Thonemann

Maga

2020

“…Currently, further process concepts are intended to be implemented for product baskets as well as alternative CO 2 -containing sources from cement, limestone, waste incineration industries and steel production via direct reduction. Furthermore, already performed simulations [3] and modeling will be more deeply executed to determine dynamic design variables, i.e., design fields of the aggregates and plant controls, to support engineering design. This is necessary since previous work showed that the dynamic operation of the plants required in the network, depending on the scenario and operating concept, can place new demands on many components that cannot be represented by conventional design methods using operating points alone.…”

Section: Systemic Approach For the Implementation Of Cross-industrial...mentioning

confidence: 99%

Implementation of Cross‐Industrial Networks Targeting CO₂ Reduction from a Systemic Approach

Piedra‐Garza

Oles

2022

Within the Carbon2Chem project, unavoidable CO 2 emissions are used creating a new type of production network comprising a steelworks and chemical production. In the second project phase (2020-2024), the focus lies on additional expansion of already developed cross-industrial networks as well as the implementation of additional ones (i.e., based on alternative CO 2 sources) from an integral perspective that includes process simulation, process design, ecological and economic evaluation, and finally scale up. Moreover, the most promising process concepts will be further developed to a higher degree of detail aiming industrial implementation.

“…The subsystems from the flow chart in Fig. 1 [20]. The PEM has a maximum load jump of ΔP max = 40 % max h -1 .…”

Section: Process Conceptmentioning

confidence: 99%

“…Schlüter and Hennig [19] described a simulation concept for synthesizing methanol from steel mill off-gases with hydrogen supply from water electrolysis. The following work by Schlüter and Geitner [20] points out the time-dependent significant influence of different gas usage scenarios and process concepts of the input gas carbon binding ratio (CBR) for methanol and urea production.…”

Section: Introductionmentioning

confidence: 99%

Ecologic Potential for Flexible Methanol Production from Steel Mill Off‐gases

Sadlowski

Beek

2020

Methanol production is one promising way to minimize the ecological impact of the conventional steelmaking process. This synthesis needs additional hydrogen, preferably produced from a green power source. In this paper, the influence of different power supply scenarios, gas storage volumes, and hydrogen production capacities on the overall carbon saving potential – defined as carbon binding ratio – from a flexible methanol production case will be investigated. A mixed‐integer linear programming model with rolling horizon is used to calculate the optimal production plan.