Partial oxidation of simulated hot coke oven gas to syngas over Ru-Ni/Mg(Al)O catalyst in a ceramic membrane reactor

Cheng, Hongwei; Lu, Xionggang; Liu, Xu; Zhang, Yuwen; Ding, Wei

doi:10.1016/s1003-9953(08)60137-1

Cited by 21 publications

(22 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reforming process was successfully performed at 875°C with 95% CH 4 conversion, 80% H 2 selectivity, and 106% CO selectivity. Cheng et al [39] achieved H 2 enrichment from stimulated hot COG using a combined medium of a membrane reactor equipped with a Ru-Ni/Mg(Al)O catalyst. The technique, utilizing the partial oxidation of HCs under atmospheric pressure, resulted in twice the amount of net H 2 present in the feed gas.…”

Section: Partial Oxidation (Po)mentioning

confidence: 99%

See 1 more Smart Citation

Coke oven gas: Availability, properties, purification, and utilization in China

Razzaq

Zhang

2013

Fuel

279

112

View full text Add to dashboard Cite

Section: Partial Oxidation (Po)mentioning

confidence: 99%

“…Over the years, hot COG has been cooled and cleaned to obtain a number of important chemicals, including toluene, benzene, and other HCs; this process results in valuable thermal and chemical energy loss. Therefore, the concept of hot COG utilization should be highly considered to address both economic and environmental issues [39].…”

Section: Cog Utilizationmentioning

confidence: 99%

Coke oven gas: Availability, properties, purification, and utilization in China

Razzaq

Zhang

2013

Fuel

279

112

View full text Add to dashboard Cite

“…1) On the other hand, the catalytic or noncatalytic reforming of COG is a promising technology that effectively utilizes the energy of the hot COG. [2][3][4][5] Upon coal carbonization, some of the nitrogen and sulfur present in coal are retained in the solid phase, and the rest is released as volatile-N (N 2 , NH 3 , HCN and tar-N) and -S (H 2 S, COS, CS 2 and tar-S) species.…”

Section: Introductionmentioning

confidence: 99%

Removal of Hydrogen Sulfide and Ammonia by Goethite-Rich Limonite in the Coexistence of Coke Oven Gas Components

2017

View full text Add to dashboard Cite

Hydrogen sulfide (H 2 S) removal and catalytic ammonia (NH 3 ) decomposition performance of limonite in the presence of coke oven gas (COG) components has been studied in a cylindrical quartz reactor at 300-850°C under a high space velocity of 51 000 h − 1 to develop a novel hot gas cleanup method. The H 2 S removal behavior in 50% H 2 /He depends on the temperature, with high performance observed at lower temperature. An investigation of the removal behavior of H 2 S in the presence of COG components (CH 4 , CO, CO 2 and H 2 O) at 400°C reveals that CH 4 does not affect the removal performance. On the other hand, the coexistence of CO drastically decreases the H 2 S removal performance. However, the addition of 5% H 2 O to 50% H 2 /30% CH 4 /5% CO/He dramatically improves the H 2 S removal performance, whereas the performance is low at 5% CO 2 with 50% H 2 /30% CH 4 /5% CO/He. In addition, the H 2 S breakthrough curve strongly depends on the space velocity.The limonite catalyst achieves almost complete decomposition of NH 3 in He at 850°C until 240 min. When the decomposition run is performed in the presence of COG components, the coexistence of 30% CH 4 deactivates limonite with significant formation of deposited carbon. On the other hand, the addition of 5% CO 2 , 5% H 2 O or 5% CO 2 /5% H 2 O to 50% H 2 /30% CH 4 /5% CO improves the catalytic activity without carbon deposition, and > 99% conversion of NH 3 to N 2 is maintained until 240 min.

show abstract

“…Berger-Karin et al [47] added a small amount of Rh to Ni/c-Al 2 O 3 , and found that Rh promoted the reduction of inactive NiAl x O y to Ni 0 species, which lead to a higher catalytic activity and selectivity. Cheng et al [48] employed Ru-Ni/Mg(Al)O for converting hot coke oven gas to syngas in membrane reactor, and found that Ru-Ni/Mg(Al)O exhibited good resistance to coking, and after activity test, only a small amount of whisker carbon was formed which could mostly be removed in hydrogen-rich atmosphere. The addition of rare earth oxides into Ni-based catalysts could enhance the basic properties of catalysts, and reduce the possibilities of catalyst deactivation by carbon deposition.…”

Section: Promoters and Redox Propertiesmentioning

confidence: 98%

Recent Progress on Ni-Based Catalysts in Partial Oxidation of Methane to Syngas

Liu

2012

Catal Surv Asia

View full text Add to dashboard Cite

The partial oxidation of methane (POM) to syngas has attracted the attentions of scientists in the recent 20-30 years due to the depletion of methane and its obvious advantages. Ni-based catalysts were most widely employed in the POM because of their comparable catalytic performance with noble metal-based catalysts as well as their cheap prices. However, Ni-based catalysts were suffered from carbon deposition and sintering which were the main reasons for catalyst deactivation. Therefore it's necessary to improve the abilities of Ni-based catalysts to resist carbon deposition and sintering. In this review, types of Ni-based catalysts that could be used in the POM to syngas are reviewed and at last, the future of Ni-based catalysts in the POM is discussed.

show abstract

Partial oxidation of simulated hot coke oven gas to syngas over Ru-Ni/Mg(Al)O catalyst in a ceramic membrane reactor

Cited by 21 publications

References 25 publications

Coke oven gas: Availability, properties, purification, and utilization in China

Coke oven gas: Availability, properties, purification, and utilization in China

Removal of Hydrogen Sulfide and Ammonia by Goethite-Rich Limonite in the Coexistence of Coke Oven Gas Components

Recent Progress on Ni-Based Catalysts in Partial Oxidation of Methane to Syngas

Contact Info

Product

Resources

About