The Effect of Carbon Dioxide Content-natural Gas on the Performance Characteristics of Engines: A Review

Wasiu, Ayandotun B.; Aziz, A. Rashid A.; Heikal, Morgan

doi:10.3923/jas.2012.2346.2350

Cited by 25 publications

(12 citation statements)

References 19 publications

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“…The relatively high CO 2 could create concerns for both recycle and combustion of electricity cogeneration. High CO 2 in gaseous fuels can lower the efficiency of the engine . While acceptable efficiency can be achieved with 32 vol% CO 2 in the High Case, its aggressive recycle ratios (>50%) could require costly CO 2 removal.…”

Section: Discussionmentioning

confidence: 99%

Modular‐scale ethane to liquids via chemical looping oxidative dehydrogenation: Redox catalyst performance and process analysis

Neal

Haribal

McCaig

et al. 2019

J Adv Manuf & Process

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The difficulties in the liquefaction and transportation of ethane in shale gas has led to significant rejection, via reinjection or flaring, of this valuable hydrocarbon resource. Upgrading this low-value, isolated ethane into easily transportable liquid fuels is a promising solution to this supply glut. In this study, we present a modular system that can potentially be operated economically at geographically isolated gas-processing facilities. The modular ethane-to-liquids (M-ETL) system uses a chemical looping-oxidative dehydrogenation (CL-ODH) technology to efficiently convert ethane and natural gas liquids into olefins (primarily ethylene) via cyclic redox reactions of highly effective redox catalyst particles. The resulting olefins are then converted to gasoline and mid-distillate products via oligomerization. CL-ODH eliminates air separation and equilibrium limitations for olefin generation. It also simplifies the process scheme and reduces energy consumption. Here, we present experimental proof-of-concept data on CL-ODH conversion of ethane to ethylene. Using the CL-ODH performance data at 750 C, we show that a simple, single-pass configuration can be economically viable at distributed sites. We identify that economic factors such as the capital cost, price of ethane feed, and value of electricity byproduct have strong effects on the required selling price of the liquids. It is also noted that the economic viability of the M-ETL system is relatively insensitive to the liquid yield under a low ethane price scenario. The demand and value of electricity at distributed locations, on the other hand, can play an important role in the optimal process configuration and economics. K E Y W O R D Sethane, fuel, gas-to-liquids, natural gas liquids, oxidative dehydrogenation, shale gas

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Section: Discussionmentioning

confidence: 99%

Modular‐scale ethane to liquids via chemical looping oxidative dehydrogenation: Redox catalyst performance and process analysis

Neal

Haribal

McCaig

et al. 2019

J Adv Manuf & Process

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“…A linear regression model [51] can be used to calculate the rate constants of amine loss in all solutions by using equations (3)(4). Where equation 4 is obtained by assuming first order reactions towards byproduct formation with respect to amine and integrated over time "t".…”

Section: Modelingmentioning

confidence: 99%

“…CO2, which is a significant source of global warming, causes corrosion in the presence of water vapor and during sour gas treatment [2,3]. Furthermore, high CO2 quantities in the natural gas stream also reduce the heating value [4]. H2S is a poisonous gas and can cause instant death at concentrations over 500 parts per million (ppm) [5,6].…”

Section: Introductionmentioning

confidence: 99%

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Thermal stability and corrosion of tertiary amines in aqueous amine and amine-glycol-water solutions for combined acid gas and water removal

Shoukat

Baumeister

Pinto

et al. 2019

Journal of Natural Gas Science and Engineering

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“…Natural gas has impurities such as acid gases (hydrogen sulfide (H 2 S) and carbon dioxide (CO 2 )), water vapor, and mercury, etc. CO 2 in the presence of water vapors can cause corrosion, and it can also reduce the heating value of natural gas [1][2][3]. H 2 S is a poisonous gas and can cause instant death at concentrations over 500 parts per million (ppm) [4,5].…”

Section: Introductionmentioning

confidence: 99%

ATR-FTIR Model Development and Verification for Qualitative and Quantitative Analysis in MDEA–H2O–MEG/TEG–CO2 Blends

2019

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A Fourier transform infrared (FTIR) spectroscopy method was developed to identify and quantify various components in an amine-based combined acid gas and water removal process. In this work, an attenuated total reflectance (ATR) probe was used. A partial least-squares (PLS) regression model was also developed using up to four components (methyl diethanolamine (MDEA)-H2O-CO2-ethylene glycol/triethylene glycol (MEG/TEG)), and it was successfully validated. The model was applied on thermally degraded CO2-loaded MDEA blends to predict the weight percentages of MDEA, H2O, CO2, and MEG or TEG to test the performance spectrum. The results confirmed that FTIR could be used as a simpler, quicker and reliable tool to identify and quantify various compounds such as MDEA, MEG/TEG, H2O and CO2 simultaneously in a combined acid gas and water removal process.

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The Effect of Carbon Dioxide Content-natural Gas on the Performance Characteristics of Engines: A Review

Cited by 25 publications

References 19 publications

Modular‐scale ethane to liquids via chemical looping oxidative dehydrogenation: Redox catalyst performance and process analysis

Modular‐scale ethane to liquids via chemical looping oxidative dehydrogenation: Redox catalyst performance and process analysis

Thermal stability and corrosion of tertiary amines in aqueous amine and amine-glycol-water solutions for combined acid gas and water removal

ATR-FTIR Model Development and Verification for Qualitative and Quantitative Analysis in MDEA–H2O–MEG/TEG–CO2 Blends

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