Reduction of particulate matter and volatile organic compounds in biorefineries: A state-of-the-art review

Ubando, Aristotle T.; Africa, Aaron Don M.; Maniquiz-Redillas, Marla C.; Culaba, Alvin B.; Chen, Wei‐Hsin

doi:10.1016/j.jhazmat.2020.123955

Cited by 28 publications

(16 citation statements)

References 71 publications

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“…[ 2,3 ] The global VOCs have widely range of emission sources including vehicle exhausts, industrial process, biomass burning, fuel evaporation, and petrochemical industry. [ 1,4–7 ] Therefore, reducing VOCs emission is an urgent problem that needs to be solved. A large number of methods including adsorption, catalytic degradation, bioremediation, and nonthermal plasma (NTP) have been developed for reducing the release of VOCs in the environment.…”

Section: Introductionmentioning

confidence: 99%

Preparation of hypercrosslinked polymers with cashew nut shell liquid for removal of volatile organic compounds

Liu

Wang

et al. 2022

Polymer Engineering & Sci

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Hypercrosslinked polymers (HCPs) have aroused considerable attention due to their high chemical stability and potential applications in adsorption. A series of HCPs were prepared via one-step solvent knitting method using the cashew nut shell liquid (CNSL) as bio-based building block. Characterization of the prepared samples was performed by N 2 adsorption, Fourier transform infrared, Raman spectra, solid-state 13 C NMR spectroscopy, thermogravimetric analysis (TGA), scanning electron microscopy, and transmission electron microscopy images. Depending on the N 2 adsorption, the as-prepared CNSL-HCP4 exhibits the highest specific surface area of 93 m 2 Ág À1 and displays a uniform pore-size distribution. TGA results show that the decomposition temperature of the polymers exceeds 350 C. More significantly, the dynamic adsorption of high concentration of volatile organic compounds (VOCs) was investigated with CNSL-HCP4 under dry and humid conditions. The results show that the maximum adsorption capacity of o-xylene under dry conditions is 217 mgÁg À1 and its corresponding adsorption amount (208 mgÁg À1 ) decreases slightly under 30% relative humidity condition, indicating that CNSL-HCP4 had a hydrophobic surface. A little decrease in adsorption capacity of o-xylene on CNSL-HCP4 after five recycles confirms the reusability of the CNSL-HCPs. Therefore, CNSL-HCP4 is considered to be a promising candidate for potential adsorbent in recycling the VOCs from the exhaust.

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Section: Introductionmentioning

confidence: 99%

Preparation of hypercrosslinked polymers with cashew nut shell liquid for removal of volatile organic compounds

Liu

Wang

et al. 2022

Polymer Engineering & Sci

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“…14 Although industrial adsorbents, such as activated carbon, 15−18 silica gel, 19−21 and zeolite, 22−25 have been widely used to adsorb VOCs, these adsorbents still face the problems of different adsorption capacities and high regeneration energy. 26,27 In the past few decades, metal organic frameworks (MOFs), which have extensive microporous structures, large specific surface areas, and high pore volumes owing to the regulation of organic linkers and metal ions, have shown great potential in gas purification and separation. 28,29 MOFs have the advantages of high adsorption capacity and selectivity.…”

Section: Introductionmentioning

confidence: 99%

Design of High-Humidity-Proof Hierarchical Porous P-ZIF-67(Co)-Polymer Composite Materials by Surface Modification for Highly Efficient Volatile Organic Compound Adsorption

Wang

et al. 2022

Ind. Eng. Chem. Res.

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The ubiquitous water vapor in industrial gas is a challenge for volatile organic compound (VOC) adsorbents. Herein, we have developed a strategy to improve the hydrophobicity and water stability of ZIF-67(Co) through internal and external modification. Through amine modification of the carrier surface rich in nanoscale roughness, the shape and size of ZIF-67(Co) are changed. ZIF-67(Co) is uniformly anchored on the macroporous surface of polyacrylates (PA) through interface coordination, forming a unique hierarchical porous structure. Compared with the original ZIF-67(Co), the toluene adsorption efficiency of ZIF-67(Co)@PA is increased by 2.75 times at 298 K and at a toluene partial pressure of P/P 0 = 0.005. Furthermore, to inhibit undesired water adsorption due to the rich defect sites, hydrophobically modified ZIF-67(Co)@PA (yielding P-ZIF-67(Co)@PA) has also been prepared, which exhibits a slight decrease in toluene adsorption and maintains the advantages of low water vapor adsorption and high hydrophobicity to improve the water stability of ZIF-67(Co).

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“…Volatile organic compounds (VOC) are a type of pollutants produced in the manufacturing process using organic solvent for coating and adhesion, putting human beings at risk of various diseases [1][2][3] in addition to the generation of harmful substances responsible for the worldwide environmental issues [4][5][6], such as photochemical oxidant and particulate matter (PM). VOC catalytic oxidation using non-noble metals (Pt, Pd, Au, Ag, etc) has been extensively investigated owing to their excellent performance.…”

Section: Introductionmentioning

confidence: 99%

HAp/TiO₂ heterojunction catalyst towards low-temperature thermal oxidation of VOC

Kato¹,

Kobayashi²,

Xin³

et al. 2022

Mater. Res. Express

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Ceramic catalyst without precious metals and rare-earth elements is a promising technology for removing volatile organic compounds (VOC) produced in the manufacturing process to feasibly solve worldwide health and environmental problems. We first investigate the influence of hydroxyapatite (HAp)/TiO2 heterojunction formation on the temperature dependence of VOC catalytic performance. The comprehensive evaluation by XRD, FT-IR, UV-vis, and in-situ ESR clarifies that the anisotropic crystal distortion along the c-axis of HAp lattice is caused by hydrolysis and hetero-condensation TiO2 precursor accompanying with the defective structure in HAp. The structural modified HAp (m-HAp) provides the notable alteration of optical bandgap with the visible-light coloration and the preferential generation of oxygen radical. Furthermore, we propose a new model that the m-HAp/TiO2 heterojunction should be a possible main factor affecting the more than twice higher catalytic performance in thermal oxidation of ethyl acetate at a lower temperature, as typically shown in HAp-T1.

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Reduction of particulate matter and volatile organic compounds in biorefineries: A state-of-the-art review

Cited by 28 publications

References 71 publications

Preparation of hypercrosslinked polymers with cashew nut shell liquid for removal of volatile organic compounds

Preparation of hypercrosslinked polymers with cashew nut shell liquid for removal of volatile organic compounds

Design of High-Humidity-Proof Hierarchical Porous P-ZIF-67(Co)-Polymer Composite Materials by Surface Modification for Highly Efficient Volatile Organic Compound Adsorption

HAp/TiO₂ heterojunction catalyst towards low-temperature thermal oxidation of VOC

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Reduction of particulate matter and volatile organic compounds in biorefineries: A state-of-the-art review

Cited by 28 publications

References 71 publications

Preparation of hypercrosslinked polymers with cashew nut shell liquid for removal of volatile organic compounds

Preparation of hypercrosslinked polymers with cashew nut shell liquid for removal of volatile organic compounds

Design of High-Humidity-Proof Hierarchical Porous P-ZIF-67(Co)-Polymer Composite Materials by Surface Modification for Highly Efficient Volatile Organic Compound Adsorption

HAp/TiO2 heterojunction catalyst towards low-temperature thermal oxidation of VOC

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Product

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HAp/TiO₂ heterojunction catalyst towards low-temperature thermal oxidation of VOC