Haiqing Lin

PhD

Haiqing Lin

PhD

Haiqing Lin

PhD

Research Topics

Novel membrane materials for CO2 capture from flue gas and syngas; robust membranes for natural gas liquids (NGLs) recovery from natural gas; understanding polymer structure/aging correlations in thin films

Contact Information

311 Furnas Hall

Buffalo NY, 14260

Phone: (716) 645-1856

Fax: (716) 645-3822

haiqingl@buffalo.edu

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Research

Dr. Lin’s research group focuses on the study of advanced polymer-based membrane materials and processes for gas and vapor separation and water purification. As an energy efficient separation technology, membrane is an attractive alternative to conventional thermally driven and energy intensive separations in addressing critical challenges in the area of energy and sustainability. Our research projects are often composed of design and synthesis of new materials and characterization of material structure and transport properties, with an end goal of solving practical problems and advancing fundamental understanding of structure-property correlation. A selection of current projects is shown below.

From left to right, Top row: Weiguang Jia, Junyi Liu, Xianda Hou, Maryam Omidvar, Hien Nguyen, Milad Yavari, Lingxiang Zhu, Nima Shahkaramipour;

Bottom row: Dr. Haiqing Lin, Haley Valentine, Shabdiki Chaurasia, Xiaoyi Chen, Praphul Mandadapu, Stephanie Hall, Sankara Ramanan, Thien Tran.

Current Projects

10/11/17
The goal of this project is to develop robust membranes for microalgae dewatering by surface-modification of membranes to increase hydrophilicity and thus superior antifouling properties. 
10/11/17
The goal of this project is to develop sorption enhanced mixed matrix membranes with H₂ permeance of 500 gas permeance units (gpu) and H₂/CO₂ selectivity of 30 at 150-200 °C. 
10/11/17
The goal of this project is to develop a portable, low-cost and energy-efficient nanomembrane patterning scheme, using a laser-chip “stamp”, to achieve excellent antifouling properties for wastewater recovery and reuse.
10/11/17
The goal of this project is to elucidate the effect of pendant rings and crosslinking on membrane gas separation properties, and design advanced materials with superior gas permeability and selectivity, and great stability against aging and plasticization for practical separations.  

CO2 Capture from Coal-Derived Power Plants

Growing evidence indicates that man-made emissions of greenhouse gases, principally CO, are contributing to global climate change. The bulk of these CO emissions are caused by the combustion of fossil fuels for power production. One approach to controlling CO emissions to the atmosphere is to capture the CO from the postcombustion flue gas or the precombustion syngas at the power plants for utilization or sequestration. The key to enabling the sustainable power production is a technology that can capture CO from the mixtures with N and H at a low-cost and energy-efficient manner. We propose to molecularly design and engineer polymers with high CO permeability and high CO/Nand CO/H selectivity or polymers with high H permeability and high H/COselectivity.

Membranes for Wastewater Reuse

Growing concerns over the environmental impact of the hydraulic fracturing of the oil and gas wells have prompted more stringent regulations and discharge limits on the waste management, especially for the wastewater. Forward osmosis (FO) has emerged as a potential sustainable way in recovering the water for further use. However, the current FO membranes are not economically viable due to their low water flux, caused by the high water transport resistance in the membrane porous structure. The objective of this program is to develop novel FO membranes with minimal internal concentration polarization in the porous structures, achieving high water flux. 

Fluorinated Polymers for Membrane Gas Separation

Development of high performance polymer materials for energy efficient membrane separation is often hampered by their deteriorated separation performance when made into industrial thin film composite membranes operating in the presence of strongly plasticizing components such as heavy hydrocarbons. Recently, perfluoropolymers attract significant interests, because of their superior stability against aging and plasticization. The objective of this program is to develop a fundamental, molecular-based mechanistic understanding of the effect of fluorination on the polymer thin film stability against aging and hydrocarbon-induced plasticization, and apply the guidelines to design a new generation of high performance membrane polymers for practical CO/CH and CH/CH separations.

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