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Qi T.,Tsinghua University | Qi T.,Massachusetts Institute of Technology | Zhou L.,Tsinghua University | Zhang X.,Tsinghua University | Ren X.,Beijing SJ Environmental Protection and New Material Co.
Energy | Year: 2012

This paper describes the effect of the coal-to-liquids (CTL) industry on economic output and employment in four Chinese regions. The operation of CTL projects require large amount of expense and thus can largely boost regional economy growth by expanding local output demands. However, such economic benefit has never been quantified. In this paper, we evaluate the economic effects of CTL projects in regional China by performing a multiplier analysis with the latest 2007 China regional input-output data. Our analysis shows that CTL projects can greatly boost economic output and employment in regional China. A Direct Coal to Liquid (DCL) project that produces one million tons of fuel every year can increase regional economic output by 0.78%-2.76% and employment by 1.10%-3.15% annually. © 2012. Source


Patent
Beijing Sj Environmental Protection And New Material Co. | Date: 2012-05-21

A method for preparing magnetic iron oxide Fe


Provided is a preparation method of magnetic iron oxide Fe


Patent
Beijing Sj Environmental Protection And New Material Co. | Date: 2012-05-21

A method for preparing amorphous iron oxide hydroxide, comprising following steps: (1) preparing a ferrous salt solution with solid soluble ferrous salt; (2) preparing a hydroxide solution; (3) mixing said hydroxide solution and said ferrous salt solution in a co-current manner for reaction at an alkali ratio of 0.60.8 and a reaction temperature not exceeding 30 C.; (4) after the reaction in step (3) is finished, yielding a first mixture, then charging said first mixture with a gas containing oxygen for oxidation, and controlling the first mixture at a pH value of 68 until the oxidation is finished to yield a second mixture; and (5) filtering, washing with water and drying said second mixture obtained in step (4) to yield the amorphous iron oxide hydroxide.


Patent
Beijing Sj Environmental Protection And New Material Co. | Date: 2012-05-21

The present invention provides a process for preparing ball-type desulfurizer with high sulfur capacity, comprising the following steps: placing initial balls in a rolling equipment; wetting the surface of the initial balls with an aqueous solution of an organic binder; then alternately adding non-crystalline iron oxide hydroxide and the aqueous solution of the organic binder to gradually form small balls of non-crystalline iron oxide hydroxide with high sulfur capacity and different diameters; and adjusting the shape of the small balls and then roasting or naturally drying the small balls. In the desulfurizer prepared by this method, the initial balls constitutes 0.98 wt %-9.03 wt % of the desulfurizer, the non-crystalline iron oxide hydroxide constitutes 90.29 wt %-98.62 wt % of the desulfurizer, and the organic binder constitutes 0.58 wt %-0.89 wt % of the desulfurizer. The present invention solves the problems that the desulfurizer with high sulfur capacity in the prior art has a high binder content and poor water resistance and diffusion performance, and provides a process for preparing a desulfurizer with high sulfur capacity, wherein a desulfurizer with high sulfur capacity and low binder content, good water resistance, good diffusion performance can be prepared.

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