Chemical Engineering and Processing - Process Intensification最新文献

{"title":"Enhancing ammonia reactor efficiency: Numerical modeling and optimization with internal cooling exchanger","authors":"M.R. Ghorbanie,&nbsp;Z. Arab aboosadi,&nbsp;E. Dehghanfard","doi":"10.1016/j.cep.2025.110498","DOIUrl":"10.1016/j.cep.2025.110498","url":null,"abstract":"<div><div>This study presents a comprehensive modeling and optimization framework for enhancing the performance of an industrial-scale ammonia synthesis reactor through the integration of internal intermediate cooling exchangers (IICE), which has not been previously modeled or optimized in a real industrial context. Focusing on the Shiraz Petrochemical Complex, both one-dimensional (radial) and two-dimensional (radial–axial) reactor models were developed using MATLAB and COMSOL, respectively, to solve the mass, energy, and momentum conservation equations under realistic operating conditions. Model validation against plant data demonstrated excellent agreement, confirming the accuracy of the proposed models. To improve reactor performance, a Differential Evolution (DE) algorithm was applied to optimize key operating parameters namely reactor inlet temperature, pressure, and feed flow rate. The optimized conditions (463.9 K, 169.99 bar, and 292,476 kg/h kg/h) led to a 16.2 % increase in ammonia molar fraction compared to current operation, achieving a maximum value of 0.21. The novelty of this work lies in the systematic integration and assessment of IICEs in a multi-bed configuration, previously unvalidated in literature. It also evaluates potential economic impacts, demonstrating that coupling internal heat recovery with numerical optimization can enhance ammonia synthesis and lower energy consumption in industrial reactors.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"218 ","pages":"Article 110498"},"PeriodicalIF":3.9,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrated ultrasound, enzymatic, and chemical pretreatments for process intensification in the sustainable valorization of passion fruit peel","authors":"Newton Carlos Santos ,&nbsp;Raphael L.J. Almeida ,&nbsp;Shênia S. Monteiro ,&nbsp;Luanna A. da Silva ,&nbsp;Yaroslávia F. Paiva ,&nbsp;Mateus de Oliveira Leite ,&nbsp;Carolina S. Santos ,&nbsp;Ana Nery A. Martins ,&nbsp;Ariadne Soares Meira ,&nbsp;Poliana H.D. Felix ,&nbsp;Ronildo P.de Sousa Júnior ,&nbsp;Severina de Sousa ,&nbsp;Alexandre J.de M. Queiroz ,&nbsp;Josivanda P. Gomes ,&nbsp;Ana Paula T. Rocha","doi":"10.1016/j.cep.2025.110484","DOIUrl":"10.1016/j.cep.2025.110484","url":null,"abstract":"<div><div>The processing of passion fruit generates residues, with the peels being the main by-product. In this study, to promote the valorization of these residues, passion fruit peels were subjected to different pretreatments. These included ultrasonic (US), chemical (CP, using potassium carbonate), and enzymatic (EP, using Viscozyme® L) methods. The pretreatments were applied individually and in combination (CP+US and EP+US), prior to convective drying at 70 °C. During the drying process, US alone reduced drying time by 47.06% (270 min vs. 510 min for the control), increasing effective moisture diffusivity (7.28 × 10^–9 m²/min) and convective coefficient (5.66 × 10^–4 m/min) (<em>p</em> &lt; 0.05). The combinations CP+US and EP+US reduced drying time by 35.29% (330 min) compared to the control. The adsorption isotherm revealed lower hygroscopicity for EP+US (<em>Xm</em> = 7.989 g H₂O/g), suggesting improved physical stability and reduced moisture absorption during storage. On the other hand, thermal properties indicated greater thermal stability for CP (Tp = 70.02 °C) and EP+US (ΔH = 2.39 J/g), suggesting higher resistance to thermal degradation. The bioactive compound profile by HPLC identified 19 phenolic compounds, with emphasis on myricetin (17.25 mg/100 g in CP+US), catechin (7.36 mg/100 g), and caftaric acid (10.12 mg/100 g). EP+US retained 70.2% of phenolics after 180 days (258.86 vs. 368.71 mg GAE/100 g initially), with lower antioxidant loss (26.7% in ABTS). Principal component analysis (PCA) and hierarchical cluster analysis (HCA) confirmed the effectiveness of the combined pretreatments in bioactive extraction. Finally, it is concluded that US, EP, and their combinations optimize the drying process and help preserve bioactive compounds. Among the tested strategies, EP+US proved to be the most promising for industrial applications. In addition, this approach supports sustainable practices for the valorization of by-products from passion fruit processing.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"217 ","pages":"Article 110484"},"PeriodicalIF":3.9,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144831335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Floating and motion characteristics of single and multiple wheat straw particles in a stirred tank","authors":"Shuang Yang ,&nbsp;Xuejun Hu ,&nbsp;Chao Song ,&nbsp;Da Chen ,&nbsp;Chang Chen ,&nbsp;Guangqing Liu","doi":"10.1016/j.cep.2025.110482","DOIUrl":"10.1016/j.cep.2025.110482","url":null,"abstract":"<div><div>Wheat straw (WS), produced abundantly in China, is an attractive substrate for anaerobic digestion (AD). However, its low density and poor wettability cause it to float in the digester, reducing AD efficiency. Considering the opaque nature of slurry, the floating and motion characteristics of WS are still uncovered. In this study, a visualization system was constructed to capture the motion of WS particle in the stirred tank with simulated fluid. Besides, the effects of particle size, blade angle, blade height, liquid phase viscosity, solid loading, rotational speed, and pretreatment conditions on the motion of single particle and dispersion of multiple particles were investigated. The results showed the motion of single particle contained four stages based on the growth rate of dimensionless velocity. Small particle size, large blade angle, low blade height, and low liquid phase viscosity enabled particles to be drawn down in short period. Pretreatment could enhance the drawdown efficiency and reduce the rotational speed. This study not only provides novel insights on the motion of WS particle in stirred tank but also guides the design and optimization of mixer in the anaerobic digesters, enabling an efficient valorization of WS and similar feedstocks.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"217 ","pages":"Article 110482"},"PeriodicalIF":3.9,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical Study of dehydrogenation of dodecahydro-N-ethylcarbazole in fixed bed reactor based on the porous medium approach","authors":"Bo Wang ,&nbsp;Bin Wang ,&nbsp;Xiang Gong ,&nbsp;Fusheng Yang ,&nbsp;Tao Fang","doi":"10.1016/j.cep.2025.110481","DOIUrl":"10.1016/j.cep.2025.110481","url":null,"abstract":"<div><div>Liquid Organic Hydrogen Carriers (LOHC) technology shows promise for hydrogen storage and transportation technology. However, it encounters challenges in fixed bed reactors, especially the inefficient heat transfer during the dehydrogenation process. Computational Fluid Dynamics (CFD) can be used to analyze the interaction of multi-physical fields in the reactor. In this study, a two-dimensional axisymmetric porous medium model of the fixed bed reactor was established to explore the dehydrogenation reaction performance of the liquid organic hydrogen carrier system N-ethylcarbazole(NEC). We studied the effects of key parameters such as wall temperature, inlet LOHC velocity, inlet LOHC temperature, porosity, thermal conductivity of wall and length of reactor to optimize reactor performance. Meanwhile, the content changes of intermediate components and the axial and radial temperature distributions were studied. The results indicate that inlet LOHC temperature, bed porosity and thermal conductivity of wall have no significant influence on the degree of dehydrogenation. Under the condition of wall temperature of 473 K, inlet velocity of 0.026 mm/s and 0.125 m in length, the obtained degree of dehydrogenation is 0.9853, which facilitate both high heat transfer rate and good reactor performance. This study can provide a basis for researching the heat transfer mechanism and designing and optimizing the reactor.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"217 ","pages":"Article 110481"},"PeriodicalIF":3.9,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144827642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improved elemental recovery from waste superalloy CMSX-4 by ultrasonic strengthening assisted two-step acid leaching","authors":"Jintao Jiang ,&nbsp;Guoliang Yin ,&nbsp;Hainan Zhang ,&nbsp;Jianbo Yu ,&nbsp;Zhigang Yang ,&nbsp;Xiaoxin Zhang ,&nbsp;Zhongming Ren","doi":"10.1016/j.cep.2025.110480","DOIUrl":"10.1016/j.cep.2025.110480","url":null,"abstract":"<div><div>The low leaching efficiency and incomplete element recovery during the acid leaching process of waste superalloys have been urgent problems in the field of superalloy recycling. In this study, the ultrasonic strengthening assisted two-step acid leaching technology was developed to realize the selective leaching of Re and high recovery efficiency of all elements from CMSX-4. The effects of the ultrasonic strengthening on leaching efficiency and morphological evolution, and the leaching kinetics behind were systematically investigated. The results showed that the applied ultrasonic strengthening not only improved the leaching rate, but also increased the final leaching efficiency. Compared with conventional condition, the leaching rate of Co and Ti were 1.17 times and 1.27 times higher than that without ultrasonic strengthening, respectively. The leaching efficiency of Re after secondary acid leaching under ultrasonic conditions is 99.26 %, and the impurity content in the acid leaching solution is reduced by more than 10 times, which not only simplifies the purification process of the solution, but also achieves efficient recovery of each valuable element. Ultrasonic strengthening destroyed the inner structure of waste superalloy, which improved the specific surface area 0.11 times and reduced the diffusion resistance by 0.75 times, respectively. Applied ultrasonic strengthening assisted acid leaching is expected to enable the recycling of less-soluble secondary resources.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"217 ","pages":"Article 110480"},"PeriodicalIF":3.9,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144771643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Circular and decentralized refineries for a sustainable energy transition","authors":"Heriberto Alcocer-García,&nbsp;César Ramírez-Márquez,&nbsp;José M. Ponce-Ortega","doi":"10.1016/j.cep.2025.110479","DOIUrl":"10.1016/j.cep.2025.110479","url":null,"abstract":"<div><div>Conventional refining accounts for approximately 6 % of global CO₂ emissions and consumes almost 20 % of industrial energy, making the urgency of the transition to decentralized and sustainable biorefinery networks evident. Process intensification, which includes technologies such as reactive distillation and thermally coupled columns, achieves energy savings of up to 50 % and operating cost reductions of 30 % to 45 %, ensuring environmental and economic viability. Meanwhile, digitalization supports predictive maintenance and process optimization, improving refining margins by up to 10 % and reducing emissions by 5 % to 15 %. Decentralized configurations facilitate the use of Integrated Renewable Energy Systems and Power-to-X technologies, which leverage solar, wind, and electrolytic energy to reduce carbon emissions by 10 % to 50 % and operating costs by up to 42 %. These strategies are aligned with the principles of the circular economy and provide flexible and locally adapted energy solutions. However, achieving deep industrial decarbonization requires strong policy frameworks, strategic investments in infrastructure, and coordinated actions across sectors. This review describes the technological, economic and environmental implications of the decentralized biorefinery, emphasizing its transformative potential in reconfiguring the refining sector into a resilient and low-emission grid capable of supporting the global transition towards sustainable energy systems.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"217 ","pages":"Article 110479"},"PeriodicalIF":3.9,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144749789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical of vortex characteristics in a counter flow contact-cyclone reactor for epoxidation of fatty acid methyl ester","authors":"Yaojun Guo,&nbsp;Mingyang Zhang,&nbsp;Yuanjing Liu,&nbsp;Wenjie Zhu,&nbsp;Jie Cheng,&nbsp;Haozhe Guo,&nbsp;Yingchun Yuan","doi":"10.1016/j.cep.2025.110475","DOIUrl":"10.1016/j.cep.2025.110475","url":null,"abstract":"<div><div>Using Eulerian model and RSM model, the vortex characteristics of the flow field with a counter flow contact-cyclone reactor for epoxidation of fatty acid methyl esters were analyzed. The impinging stream technology was used to optimize the mixing and reaction of FAME and performic acid. By varying the impingement distance (L₁) and accelerator tube length (L₂), the vorticity, swirling strength, and vortex kinetic energy distribution of the flow field were discussed using vorticity, normalized swirling strength standard deviation, and Q-criterion. Furthermore, the vortex core interaction range and evolution process in the reactor were studied based on the radial variations of vorticity and swirling strength standard deviation. Significantly, when L₁ = 40 mm and L₂ = 30 mm, the development of the vorticity reached the optimal working condition. Analysis of vorticity and Q-criterion isosurfaces indicates that small-scale vortices are distributed near the impingement chamber walls, while large-scale vortices are located at the impingement center. Notably, the vortex structures in the counter flow contact chamber are dominated by horseshoe and ribbed vortices. The evolution of vortices in the radial plane of the counter flow contact chamber is divided into four stages according to Q-criterion variations, and the flow field stabilizes after t = 0.18 s.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"217 ","pages":"Article 110475"},"PeriodicalIF":3.9,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144738158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A hybrid multi-objective optimization and decision-making framework (NSGA-II–TOPSIS) for bioethanol production from sago pith waste via microwave-enhanced subcritical water hydrolysis","authors":"Saravana Kannan Thangavelu ,&nbsp;Kaliamoorthy Mylsamy ,&nbsp;Abu Saleh Ahmed ,&nbsp;Charlie Chin Voon Sia","doi":"10.1016/j.cep.2025.110478","DOIUrl":"10.1016/j.cep.2025.110478","url":null,"abstract":"<div><div>This study presents a hybrid multi-objective optimization and decision-making framework to enhance bioethanol production from sago pith waste (SPW) using microwave-enhanced subcritical water hydrolysis (MW–SWH). A Central Composite Design (CCD) investigated the effects of temperature (180–260 °C), reaction time (10–30 min), microwave power (200–600 W), and water-to-biomass ratio (5–20 mL/g) on sugar and ethanol yields. Response Surface Methodology (RSM) developed predictive models (R² &gt; 0.95), while Non-dominated Sorting Genetic Algorithm II (NSGA-II) simultaneously maximized ethanol yield and minimized energy consumption. TOPSIS identified the most balanced conditions from the Pareto-optimal front. Under optimal conditions, MW–SWH achieved ∼80% sugar yield and ∼71% ethanol yield (27.5 <em>g</em>/100 <em>g</em> SPW), outperforming conventional acid and enzymatic hydrolysis in yield and process efficiency. A specific energy demand of ∼4.72 kWh/kg ethanol was recorded, significantly lower than typical benchmarks. FTIR analysis confirmed effective carbohydrate depolymerization, which correlated with enhanced fermentation performance, yielding an ethanol coefficient of approximately 0.48 <em>g</em>/g. This integrated MW–SWH–NSGA-II–TOPSIS strategy demonstrates a scalable, energy-efficient pathway for valorizing low-lignin, high-starch SPW into bioethanol. The approach shows broader applicability for optimizing lignocellulosic biorefineries and supports sustainable biofuel production aligned with circular economy principles.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"217 ","pages":"Article 110478"},"PeriodicalIF":3.9,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144749787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Production of hydrogen and H2/NH3 mixtures from ammonia at elevated pressures in a catalytic membrane reformer","authors":"Nolan Kelley,&nbsp;J․Douglas Way,&nbsp;Colin A. Wolden","doi":"10.1016/j.cep.2025.110474","DOIUrl":"10.1016/j.cep.2025.110474","url":null,"abstract":"<div><div>Hydrogen delivery at elevated pressures is often required for fuel cell and combustion applications to improve volumetric energy density. Catalytic membrane reformers (CMRs) integrate hydrogen production and purification from reforming liquid hydrogen carriers, such as ammonia, enabling direct recovery of pressurized, purified hydrogen. In this study, high-pressure ammonia is supplied to a catalytic membrane reformer (CMR) to enhance both performance and hydrogen recovery pressures. Increasing operating pressure in the CMR resulted in nearly doubling the hydrogen flux from 17.2 to 34 sccm cm⁻² compared to our previous work. However, as the recovery pressure of the permeate increased, the performance notably decreased with hydrogen recovery dropping from 98 % at atmospheric pressure to 44 % at 10 bar. Nevertheless, the system demonstrated rates of ammonia conversion, hydrogen flux, and hydrogen recovery comparable to leading literature reports when supplying ammonia at 20 bar and recovering the permeate up to 10 bar. Additionally, by using ammonia as both a feed and sweep gas, we demonstrate the direct production of high-pressure NH₃/H₂ fuel blends, including a 70:30 mixture representative of natural gas, without loss in CMR performance. These results highlight the potential of CMR technology to reduce hydrogen compression costs and enable on-demand generation of ammonia-derived fuel blends.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"216 ","pages":"Article 110474"},"PeriodicalIF":3.9,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel anisotropic T-S structured packing for improved hydrodynamic and mass transfer performance in rotating packed bed: A pathway for new generation packings","authors":"Viraj Santosh PAWAR ,&nbsp;Usman GARBA ,&nbsp;Thibaut TRIQUET ,&nbsp;David ROUZINEAU ,&nbsp;Michel MEYER","doi":"10.1016/j.cep.2025.110476","DOIUrl":"10.1016/j.cep.2025.110476","url":null,"abstract":"<div><div>The aim of this research was to develop novel T-S packing structure (based on open cellular structures) in anisotropic manner; thus, varying packing properties from inner to outer radius. 3-d printing technology (Stereolithography) was used to produce anisotropic packings. Hydrodynamics and mass transfer experiments for effective interfacial area were carried out for this packing, as well as for wire mesh at different gas &amp; liquid flowrates and rotational speed. Hydrodynamic studies showed 2–7 folds reduction in pressure drop for novel T-S packing as compared to wire mesh regardless of operating conditions. Not only it improved hydrodynamic performance of RPB but fostered superior mass transfer characteristics in terms of effective interfacial area, where a higher interfacial area was achieved. This superior performance is attributed to the anisotropic nature combined with T-S structured packing. Current study demonstrates the strategy of producing packing in anisotropic fashion which can further be combined with novel packing designs to improve the hydrodynamics and mass transfer in rotating packed bed, thus increasing its modularity.</div></div>","PeriodicalId":9929,"journal":{"name":"Chemical Engineering and Processing - Process Intensification","volume":"217 ","pages":"Article 110476"},"PeriodicalIF":3.9,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144749786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}