Yang Cai

US Patent:

7906665, Mar 15, 2011

Filed:

May 16, 2008

Appl. No.:

12/121918

Inventors:

Victor Shang-Yi Lin - Ames IA, US
Yang Cai - Ames IA, US
Carla Kern - Ames IA, US
Joel I. Dulebohn - Lansing MI, US
Jennifer A. Nieweg - Ames IA, US

Assignee:

Iowa State University Research Foundation, Inc. - Ames IA
Claytec, Inc. - East Lansing MI

International Classification:

C11C 3/00

US Classification:

554167, 502172

Abstract:

The invention provides efficient, inexpensive, and environmental friendly catalysts and catalyst systems. The catalysts can be used to catalyze esterification and/or transesterification reactions, for example, for the preparation of biodiesel. Kiln dust, such as cement kiln dust (CKD) or lime kiln dust (LKD) can be used to convert a variety of feedstock acids and/or esters to biodiesel in high yield under mild conditions. The CKD and LKD catalyst systems are recyclable esterification or transesterification catalysts that can be used to prepare biodiesel, such as methyl soyate, from various feedstocks, including vegetable oils and animal fats.

US Patent:

20110054200, Mar 3, 2011

Filed:

Aug 31, 2010

Appl. No.:

12/873211

Inventors:

Yang Cai - Ames IA, US
Jennifer A. Nieweg - Ames IA, US
Wayne Anthony Turner - Baton Rouge LA, US
Carla Kern Wilkinson - Ames IA, US

International Classification:

C07C 67/02
B01J 23/90
B01J 8/00

US Classification:

554169, 422223, 422609

Abstract:

Described herein are systems and processes for the transesterification of a variety of feedstocks, such as in the form of glyceride-containing vegetable oils, glyceride-containing animal oils, and glyceride-containing algal oils, into biodiesel products using solid, heterogeneous catalysts.