Smelting‐Reduction Export Gas as Syngas in the Chemical Industry

Abstract

Export gases from iron‐making processes are typically used as an energy source for heat and power generation within the iron and steel industry, although their calorific value is comparatively low. The fact that COREX® and FINEX® smelting‐reduction export gases typically consist of the major syngas‐components CO and H2 (approx. 50% of gas composition), makes them attractive for utilization in the direct reduction of iron ores and in the chemical synthesis industry. This paper will discuss the required process steps for converting smelting‐reduction export gases into synthesis gas (syngas) using the example of methanol production. The calculated CO2‐balance shows promising results for chemical utilization of COREX® export gas compared to energy utilization in conventional or combined power plants.

Carbon monoxide separation: past, present and future

“…Smelting reduction processes, such as COREX and FINEX, are a newer iron making technology. 160 With less impurity and lower nitrogen content (<10%) than blast furnace gas, COREX (with 40–50% of CO) and FINEX (with 30–50% of CO) export gases seem to be attractive as alternative feedstock for the generation of CO. ( Table 4 1 ) However, there are no reports concerning plants in operation for the utilisation of these two export gases as syngas in chemical industry nor are there reports regarding separating CO from these gases.…”

“…1), e.g., light hydrocarbons fuels, methanol, acetic acid, metal carbonyls, phosgene and (oxo-alcohols). 1 Besides the use of CO as feedstock for the chemical industry, CO can be employed as a direct product as well. For example, in food packaging 2 and as a therapeutic agent in clinical applications.…”

Synthesis of C‐H‐O Symbiosis Networks

“…The steel‐making process produces different types of by‐product gases including: blast furnace gas which is produced during hot metal production using coke as a reducing agent or coke oven gas (COG) . These gases are typically recycled within the steel plant and used as a fuel for power generation . The plant capacity is 2,000,000 tons/year and the COG reformate is made available as a source for integration in the CHOSYN.…”

Construction of a Zn0.65Cd0.35S/SnO2 S-scheme heterojunction for efficient photocatalytic CO2 reduction

“…Over the years, CO has been widely used in the production of water gas fuel, medical treatment, food preservation, the metallurgical industry and other aspects. 1,2 At present, a large amount CO production process is inevitable exhaust harmful gas, environmental protection and ecological friendly problems are becoming increasingly prominent. In recent years, photocatalytic CO 2 reduction has gradually been considered as a green CO preparation method by many researchers.…”