Simulation of the calcium looping process (CLP) for hydrogen, carbon monoxide and acetylene poly-generation with CO2 capture and COS reduction

In this paper, a novel poly-generation system is proposed for hydrogen, carbon monoxide, and acetylene production with inherent CO2 capture and COS reduction. It is based on calcium looping coal gasification and oxygen-thermal CaC2 preparation. The system is comprised of calcium looping gasification reactors, preheaters, oxygen-thermal CaC2 furnace, and carbide slag modifier. Modified carbide slag and fresh CaCO3 are used as raw materials for sorption enhanced hydrogen production (SEHP). The cycled CaO-based sorbent is fed into oxygen-thermal CaC2 furnace for CaC2 production after calcination. CO-rich gas is generated from the furnace simultaneously. A portion of CO-rich gas which includes COS is fed into calcium looping gasification system to generate extra hydrogen. In addition, CO2 and COS are captured through the CaO-based sorbent. To maintain the heat balance of the system, a portion of CO-rich gas is fed into the regenerator for combustion. The entire process is modeled and simulated using Aspen Plus software. The proposed system efficiency could reach 81.62%. Parameters that affect the target products (H2, CO, C2H2, and CaC2) are investigated in the sensitive analysis, including steam/CO/CaO ratio, riser temperature, coke/CaO/O2 ratio, and coal species.

[1]  Andrew T. Harris,et al.  Screening CaO-Based Sorbents for CO 2 Capture in Biomass Gasifiers , 2008 .

[2]  L. Fan,et al.  Calcium Looping Process for Clean Coal Conversion: Design and Operation of the Subpilot-Scale Carbonator , 2012 .

[3]  Syuan-Hong Lin,et al.  Hydrogen production from coal by separating carbon dioxide during gasification , 2002 .

[4]  K. Jun,et al.  Highly active and stable Ni/Ce-ZrO2 catalyst for H2 production from methane , 2002 .

[5]  Bo Feng,et al.  Screening of CO2 adsorbing materials for zero emission power generation systems , 2007 .

[6]  Karl O. Albrecht,et al.  Development of a CaO-based CO2 sorbent with improved cyclic stability , 2008 .

[7]  Noam Lior,et al.  Coal gasification integration with solid oxide fuel cell and chemical looping combustion for high-efficiency power generation with inherent CO2 capture , 2015 .

[8]  K. Yi,et al.  Effects of preparation method on cyclic stability and CO2 absorption capacity of synthetic CaO–MgO absorbent for sorption-enhanced hydrogen production , 2012 .

[9]  Nigel P. Brandon,et al.  Hydrogen and fuel cells: Towards a sustainable energy future , 2008 .

[10]  H. Tan,et al.  The ash deposition mechanism in boilers burning Zhundong coal with high contents of sodium and calcium: A study from ash evaporating to condensing , 2015 .

[11]  Dong Wang,et al.  Calcium looping gasification for high-concentration hydrogen production with CO2 capture in a novel compact fluidized bed: Simulation and operation requirements , 2011 .

[12]  Hankwon Lim,et al.  Catalytic activity and characterizations of Ni/K2TixOy–Al2O3 catalyst for steam methane reforming , 2014 .

[13]  Shuimu Wu,et al.  CO2 capture performance of synthetic sorbent prepared from carbide slag and aluminum nitrate hydrate by combustion synthesis , 2015 .

[14]  Bing Zhu,et al.  CO2 emissions in calcium carbide industry: An analysis of China's mitigation potential , 2011 .

[15]  F. Zeman.  Effect of steam hydration on performance of lime sorbent for CO2 capture , 2008 .

[16]  J. Carlos Abanades,et al.  CO2 Looping Cycle Performance of a High-Purity Limestone after Thermal Activation/Doping , 2008 .

[17]  Zhenyu Liu,et al.  Thermodynamic Analysis of Calcium Carbide Production , 2014 .

[18]  Wenjing Wang,et al.  HCl absorption by CaO/Ca3Al2O6 sorbent from CO2 capture cycles using calcium looping , 2015 .

[19]  Maohong Fan,et al.  Progress in oxygen carrier development of methane-based chemical-looping reforming: A review , 2015 .

[20]  Yingjie Li,et al.  CO2 capture by carbide slag from chlor-alkali plant in calcination/carbonation cycles , 2012 .

[21]  Jean-Pierre Tranier,et al.  Air separation, flue gas compression and purification units for oxy-coal combustion systems , 2009 .

[22]  Shiyi Chen,et al.  Improvements of CaO-based sorbents for cyclic CO2 capture using a wet mixing process , 2016 .

[23]  Luis M. Romeo,et al.  The Calcium-Looping technology for CO2 capture: On the important roles of energy integration and sorbent behavior , 2016 .

[24]  Yingjie Li,et al.  HCl removal using cycled carbide slag from calcium looping cycles , 2014 .

[25]  Jianguo Yu,et al.  Preparation of CaO–Al2O3 sorbent and CO2 capture performance at high temperature , 2013 .

[26]  R. Santos,et al.  Purification of slag-derived leachate and selective carbonation for high-quality precipitated calcium carbonate synthesis , 2015 .

[27]  Haisheng Chen,et al.  Co-production system of hydrogen and electricity based on coal partial gasification with CO2 capture , 2012 .

[28]  J. C. Abanades,et al.  Conversion Limits in the Reaction of CO2 with Lime , 2003 .

[29]  Shiyi Chen,et al.  Energy and exergy analysis of a new hydrogen-fueled power plant based on calcium looping process , 2013 .

[30]  L. Fan,et al.  Calcium Looping Process (CLP) for Enhanced Noncatalytic Hydrogen Production with Integrated Carbon Dioxide Capture , 2010 .

[31]  C. Gregoire-Padró.  Hydrogen, the Once and Future Fuel , 1998 .

[32]  J. C. Abanades.  The maximum capture efficiency of CO2 using a carbonation/calcination cycle of CaO/CaCO3 , 2002 .

[33]  Jochen Ströhle,et al.  Carbonate looping experiments in a 1 MWth pilot plant and model validation , 2014 .

[34]  J. Grace,et al.  CO2 sorbent attrition testing for fluidized bed systems , 2014 .

[35]  Yongchen Song,et al.  Hydrogen production by enhanced-sorption chemical looping steam reforming of glycerol in moving-bed reactors , 2014 .

[36]  Vasilije Manovic,et al.  Thermal activation of CaO-based sorbent and self-reactivation during CO2 capture looping cycles. , 2008, Environmental science & technology.

[37]  Gary J. Stiegel,et al.  Hydrogen from coal gasification: An economical pathway to a sustainable energy future , 2006 .

[38]  Xiaotong Ma,et al.  Simultaneous CO2/HCl removal using carbide slag in repetitive adsorption/desorption cycles , 2015 .

[39]  N. Mahinpey,et al.  Sorbent enhanced hydrogen production from steam gasification of coal integrated with CO2 capture , 2014 .

[40]  Yingjie Li,et al.  Thermal analysis of cyclic carbonation behavior of CaO derived from carbide slag at high temperature , 2012, Journal of Thermal Analysis and Calorimetry.

[41]  A. Sánchez-Biezma,et al.  Demonstration of steady state CO2 capture in a 1.7 MWth Calcium looping pilot , 2013 .

[42]  Praveen Linga,et al.  Hydrogen storage in clathrate hydrates: Current state of the art and future directions , 2014 .

[43]  M. Fan,et al.  Catalytic hydrogen production from fossil fuels via the water gas shift reaction , 2015 .

[44]  Qinhui Wang,et al.  H2 rich gas production via pressurized fluidized bed gasification of sawdust with in situ CO2 capture , 2013 .

[45]  Liang Jie,et al.  Forward and reverse combustion gasification of coal with production of high-quality syngas in a simulated pilot system for in situ gasification , 2014 .

[46]  E. J. Anthony,et al.  A study on the activity of CaO-based sorbents for capturing CO2 in clean energy processes , 2010 .

[47]  W. F. Castle.  Air separation and liquefaction: recent developments and prospects for the beginning of the new millennium , 2002 .

[48]  John R. Grace,et al.  The effect of CaO sintering on cyclic CO2 capture in energy systems , 2007 .

[49]  Jianli Zhao,et al.  CO2 capture using carbide slag modified by propionic acid in calcium looping process for hydrogen production , 2013 .

[50]  R. Miao,et al.  Dust removal and purification of calcium carbide furnace off-gas , 2014 .

[51]  Chengyue Li,et al.  Production of calcium carbide from fine biochars. , 2010, Angewandte Chemie.

[52]  Qingling Liu,et al.  Optimization of steam methane reforming coupled with pressure swing adsorption hydrogen production process by heat integration , 2015 .

[53]  Dong Wang,et al.  Incorporating IGCC and CaO sorption-enhanced process for power generation with CO2 capture , 2012 .

[54]  Jens R. Rostrup-Nielsen,et al.  Large-Scale Hydrogen Production , 2002 .

[55]  G. Naterer,et al.  Life cycle assessment of various hydrogen production methods , 2012 .