EXHIBIT 23.1
  
  
  
  
             CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS
  
  
  
  Rentech, Inc.
  1331 17th Street, Suite 720
  Denver, CO 80202
  
  We consent to the incorporation by reference in Amendment No. One to the
  Registration Statement of Rentech, Inc. on Form S-3 of our report dated
  December 2, 1996 relating to the consolidated financial statements (which
  contained an explanatory paragraph relative to the going concern
  uncertainty) appearing in the Transition Report on Form 10-KSB of
  Rentech, Inc. for the nine months ended September 30, 1996 and for the
  year ended December 31, 1995, and to the reference to us under the
  heading "Experts" in the Prospectus, which is part of such Registration
  Statement. 
  
  
  
  
  BDO Seidman, LLP
  
  
  
  December 1, 1997
  
  Denver, Colorado