Coupling optimization of hydrogen-storage based purification and hydrogen network

doi:10.11949/0438-1157.20191548

Abstract

Abstract:

Based on the integration of the hydrogen network and the characteristics of the AB₅ hydrogen storage materials LaNi_4.75Fe_0.25 and LaNi_4.85Al_0.15, the application of hydrogen storage purification in the hydrogen network was studied. According to the relationship between the hydrogen-saving capacity of unit hydrogen storage material and the purification parameters, and that between utility saving and purification parameters, the optimal purification feed purity, the maximum utility saving, the amount of hydrogen storage material and the hydrogen absorption time can be determined. The proposed method is used to optimize the hydrogen network and hydrogen storage purification unit of a refinery. The results show that, in this refinery, the optimal purification hydrogen feed purity is 70% and the utility consumption can be reduced by 23.72%; more hydrogen can be saved when LaNi_4.85Al_0.15 is used in the purification unit instead of LaNi_4.75Fe_0.25, and the amount of LaNi_4.85Al_0.15 demanded in the purification unit is 991.26 kg.

Key words: hydrogen storage, purification, optimization, purification feed purity, hydrogen network

摘要：

基于氢网络的集成以及AB₅型储氢材料LaNi_4.75Fe_0.25及LaNi_4.85Al_0.15的特性，对储氢提纯在氢网络中的应用进行研究。综合考虑LaNi_4.75Fe_0.25及LaNi_4.85Al_0.15储氢/放氢动力学，建立了储氢提纯氢网络的优化方法，根据单位质量储氢材料提纯的节氢能力和公用工程节省量与提纯参数的关系，确定最优提纯氢源浓度、最大公用工程节省量、储氢材料量和吸氢时间。用该方法对某炼厂氢网络和储氢提纯单元进行优化，结果表明，最优提纯氢源浓度为70%，提纯后公用工程可节省23.72%； LaNi_4.85Al_0.15作为储氢提纯材料优于LaNi_4.75Fe_0.25，其消耗量为991.26 kg。

关键词: 储氢, 提纯, 优化, 氢源浓度, 氢网络

CLC Number:

TQ 021.8

Kaiyu LI, Guilian LIU. Coupling optimization of hydrogen-storage based purification and hydrogen network[J]. CIESC Journal, 2020, 71(3): 1143-1153.

李开宇, 刘桂莲. 储氢提纯和氢网络的耦合优化[J]. 化工学报, 2020, 71(3): 1143-1153.

Figures/Tables 20

Fig.1 General hydrogen purification process

Fig.2 Equilibrium pressure diagram for LaNixM5-x alloy(1 bar=0.1 MPa)

Fig.3 Kinetic curve of LaNixM5-xalloy

Table 1 Reaction rate constantsk of hydrogen absorption and desorption processes

速率常数	LaNi_4.75Fe_0.25	LaNi_4.85Al_0.15
$l n k a b s$	$3.122888 - 14475.4 R g T$	$0.467959 - 8064.6 R g T$
$l n k d e s$	$4.95603 - 23805.7 R g T$	$8.07169 - 30945.9 R g T$

Table 1 Reaction rate constantsk of hydrogen absorption and desorption processes

速率常数	LaNi_4.75Fe_0.25	LaNi_4.85Al_0.15
$l n k a b s$	$3.122888 - 14475.4 R g T$	$0.467959 - 8064.6 R g T$
$l n k d e s$	$4.95603 - 23805.7 R g T$	$8.07169 - 30945.9 R g T$

Fig.4 Quantitative relationship diagram betweencpur andΔsFu,i

Fig.5 Absorption kinetic curve of LaNixM5-x alloy at different concentrations

Fig.6 Variation ofmLaNixM5-x andΔsFu,i along purification feed purity

Fig.7 Variation ofU alongcpur

Fig.8 Continuous model of hydrogen-storage based purification unit

Fig.9 Schematic diagram of hydrogen-storage based purification unit

Table 2 Data of hydrogen sources and hydrogen sinks[9]

流股		氢负荷/%(mol)	流量/(mol?s^-1)
氢阱
SK₁	HCU	80.61	2495.00
SK₂	NHT	78.85	180.20
SK₃	CNHT	75.14	720.70
SK₄	DHT	77.57	554.40
氢源
SR₁	HCU	75	1801.90
SR₂	NHT	75	138.60
SR₃	CNHT	70	457.40
SR₄	DHT	73	346.50
SR₅	SRU	93	623.80
SR₆	CRU	80	415.80
SR₀	fresh	95	286.82

Fig.10 Absorption kinetic curve of LaNi4.75Fe0.25 and LaNi4.85Al0.15alloyat different purification feed purities

Table 3 tabs andmLaNi4.75Fe0.25at different purification feed purities

提纯氢源浓度/%（mol）	t_abs/s	$m L a N i 4.75 F e 0.25$ /kg
100	146.84	1074.36
80	163.65	958.31
75	173.11	950.31
73	178.06	951.42
70	187.24	950.39

Table 3 tabs andmLaNi4.75Fe0.25at different purification feed purities

提纯氢源浓度/%（mol）	t_abs/s	$m L a N i 4.75 F e 0.25$ /kg
100	146.84	1074.36
80	163.65	958.31
75	173.11	950.31
73	178.06	951.42
70	187.24	950.39

Table 4 tabs andmLaNi4.85Al0.15at different purification feed purities

提纯氢源浓度/%(mol)	t_abs/s	$m L a N i 4.85 A l 0.15$ /kg
100	94.83	693.80
80	94.38	552.68
75	95.92	526.55
73	96.52	515.74
70	97.69	495.63

Table 4 tabs andmLaNi4.85Al0.15at different purification feed purities

提纯氢源浓度/%(mol)	t_abs/s	$m L a N i 4.85 A l 0.15$ /kg
100	94.83	693.80
80	94.38	552.68
75	95.92	526.55
73	96.52	515.74
70	97.69	495.63

Fig.11 Variation oftabs andmLaNixM5-x along temperature

Fig.12 ΔsFu,SRi-cpurdiagram of system shown in Table 2

Fig.13 Variation ofmLaNixM5-x andΔsFu along purification feed purity

Fig.14 Relationship betweenU andcpur

Table 5 Data of hydrogen storage unit

储氢提纯模块

m L a N i 4.85 A l 0.15

F_pur/

(mol·s^-1)

F_g/

(mol·s^-1)

Table 5 Data of hydrogen storage unit

储氢提纯模块

m L a N i 4.85 A l 0.15

/kg

t/s

c_pur/%(mol)

c_g/%(mol)

F_pur/

(mol·s^-1)

F_g/

(mol·s^-1)

吸氢过程

495.63

97.69

—

94.90

—

放氢过程

495.63

318.53

—

99.99

—

16.30

Fig.15 Operation of two hydrogen-storage based purification units

References 31

1	Alves J J,Towler G P.Analysis of refinery hydrogen distribution systems[J].Idustrial & Engineering Chemistry Research,2002,41(23):5759-5769.
2	El-Halwagi M M,Gabriel F,Harell D.Rigorous graphical targeting for resource conservationvia material recycle/reuse networks[J].Industrial & Engineering Chemistry Research,2003,42:4319-4328.
3	Almutlaq A M,Kazantzi V,El-Halwagi M M.An algebraic approach to targeting waste discharge and impure fresh usageviamaterial recycle/reuse networks[J].Clean Technologies and Environmental Policy,2005,7(4):294-305.
4	Liu F,Zhang N.Strategy of purifier selection and integration in hydrogen networks[J].Chemical Engineering Research and Design,2004,82(10):1315-1330.
5	Nelson A M,Liu Y.Hydrogen-pinch analysis made easy[J].Chemical Engineering,2008,115(6):56-61.
6	Zhang Q,Feng X,Liu G L.A novel graphical method for the integration of hydrogen distribution systems with purification reuse[J].Chemical Engineering Science,2011,66(4):797-809.
7	Liu G L,Li H,Feng X,et al.A conceptual method for targeting the maximum purification feed flow rate of hydrogen network[J].Chemical Engineering Science,2013,88:33-47.
8	Liu G L,Li H,Feng X,et al.Novel method for targeting the optimal purification feed flow rate of hydrogen network with purification reuse/recycle[J].AIChE Journal,2013,59(6):1964-1980.
9	Liu G L,Zheng M Y,Li L,et al.Effect of purification feed and product purities on the hydrogen network integration[J].Industrial & Engineering Chemistry Research,2014,53:6433-6449.
10	Dai W,Shen R J,Zhang D,et al.The integration based method for identifying the variation trend of fresh hydrogen consumption and optimal purification feed[J].Energy,2017,119:732-743.
11	Liang J J,Liu G L.Hydrogen network integration considering the fresh hydrogen and purification feed optimization[J].Chemical Engineering Transactions,2017,61:811-816.
12	Schlapbach L,Züttel A.Hydrogen-storage materials for mobile applications[J].Nature,2001,14(6861):353-358.
13	Khandelwal A,Agresti F,Capurso G,et al.Pellets of MgH₂-based composites as practical material for solid state hydrogen storage[J].International Journal of Hydrogen Energy,2010,35(8):3565-3571.
14	Minko K B,Artemov V I,Yan’kov G G.Numerical simulation of sorption/desorption processes in metal-hydride systems for hydrogen storage and purification(I): Development of a mathematical model[J].International Journal of Heat and Mass Transfer,2014,68:683-692.
15	Minko K B,Artemov V I,Yan’kov G G.Numerical simulation of sorption/desorption processes in metal-hydride systems for hydrogen storage and purification(II): Verification of the mathematical model[J].International Journal of Heat and Mass Transfer,2014,68:693-702.
16	Block F R,Dey A,Kappes H,et al.Hydrogen purification with metal hydrides in a new kind of reactor[J].Less Common Metals,1987,131(1/2):329-335.
17	Saitou T,Sugiyama K.Hydrogen purification with metal hydride sintered pellets using pressure swing adsorption method[J].Alloys and Compounds,1995,231:865-870.
18	Hampton M,Slattery D.Metal hydrides for hydrogen separation, recovery and purification[J].NASA/CR Rep,2007,2007:473-485.
19	Miura S,Fujisawa A,Ishida M.A hydrogen purification and storage system using metal hydride[J].International Journal of hydrogen Energy,2012,37(3):2794-2799.
20	Dunikov D,Borzenko V,Malyshenko S.Influence of impurities on hydrogen absorption in a metal hydride reactor[J].International Journal of Hydrogen Energy,2012,37(18):13843-13848.
21	Lototskyy M,Modibane K D,Williams M,et al.Application of surface-modified metal hydrides for hydrogen separation from gas mixtures containing carbon dioxide and monoxide[J].Alloys and Compounds,2013,580(1):S382-S385.
22	Yang F S,Chen X Y,Wu Z,et al.Experimental studies on the poisoning properties of a low-plateau hydrogen storage alloy LaNi_4.3Al_0.7 against CO impurities[J].International Journal of hydrogen Energy,2017,42:16225-16234.
23	Lin X,Zhu Q,Leng H Y,et al.Numerical analysis of the effects of particle radius and porosity on hydrogen absorption performances in metal hydride tank[J].Applied. Energy,2019,250:1065-1072.
24	罗磊.超长寿命低钴AB₅型储氢材料的制备及性能研究[D].广州:华南理工大学,2016.
	Luo L.Preparation and properties research of super long-life and low-Co AB₅-type hydrogen storage alloys[D].Guangzhou:South China University of Technology,2016.
25	韩晓强.稀土系AB₅型低钴及无钴储氢材料研究[D].沈阳:东北大学,2016.
	Han X Q.Investigations of rare earth element-based AB₅ type low-Co and Co-free hydrogen storafe alloys[D].Shenyang:Northeastern Uniersity,2016.
26	Suda S,Uchida M,Morishita E,et al.Equilibrium and kinetic properties of LaNi₅ and MmNi₄₅Al₀₅ deuterides[J].Less Common Met,1983,89(1):133-133.
27	Dhaou H,Askri F,Salah M B,et al.Measurement and modelling of kinetics of hydrogen sorption by LaNi₅ and two related pseudobinary compounds[J].International Journal of Hydrogen Energy,2007,32(5):576-587.
28	Mellouli S,Askri F,Dhaou H,et al.A novel design of a heat exchanger for a metal-hydrogen reactor[J].International Journal of Hydrogen Energy,2007,32(15):3501-3507.
29	Wjihi S,Bouzid M,Sellaoui L,et al.P-C isotherms of LaNi_4.75Fe_0.25 alloy at different temperatures statistical physics modeling of hydrogen sorption onto LaNi_4.75Fe_0.25: microscopic interpretation and thermodynamic potential investigation[J].Fluid Phase Equilibria,2016,414:170-181.
30	Dieterich M,Burger I,Linder M.Open and closed metal hydride system for high thermal power applications: preheating vehicle components [J].International Journal of Hydrogen Energy,2017,42(16):11469-11481.
31	Brea P,Delgado J A,Agueda V I,et al.Multicomponent adsorption of H₂, CH₄, CO and CO₂ in zeolites NaX, CaX and MgX. Evaluation of performance in PSA cycles for hydrogen purification[J].Microporous Mesoporous Mater,2019,286:187-198.

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