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. Two to
  Registration Statement No. 333-35571 of Rentech, Inc. on Form S-3 of our
  report dated November 26, 1997 relating to the consolidated financial
  statements (which contained an explanatory paragraph relative to the
  going concern uncertainty) appearing in the Annual Report on Form
  10-KSB/A of Rentech, Inc. for the year ended September 30, 1997 and for
  the nine months ended September 30, 1996, and to the reference to us
  under the heading "Experts" in the Prospectus, which is part of such
  Registration Statement. 
  
  
  BDO Seidman, LLP
  
  
  
  
  January 19, 1998
  Denver, Colorado